Siemens Canada Siemens Milltronics Process Instruments LR250 SITRANS LR 250 TANK LEVEL PROBING RADAR User Manual JE01 LR250 LUI

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Document ID	748474
Application ID	Yu2PSIBdH1V/mMF9b6TmIw==
Document Description	USERS MANUAL
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Document Type	User Manual
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Filesize	188.36kB (2354480 bits)
Date Submitted	2007-01-18 00:00:00
Date Available	2007-01-19 00:00:00
Creation Date	2006-12-15 12:21:46
Producing Software	Acrobat Distiller 6.0 (Windows)
Document Lastmod	2006-12-15 13:16:28
Document Title	JE01-LR250_LUI.book
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Document Author:	z000ek6v

Table of Contents
SITRANS LR250 ..................................................................................................................4
Applications ..................................................................................................................................5
SITRANS LR250 System Implementation ..............................................................................6
Programming ................................................................................................................................6
SITRANS LR250 Approvals and Certificates .........................................................................6
Specifications ....................................................................................................................7
SITRANS LR250 ..................................................................................................................................... 7
Power............................................................................................................................................. 7
Performance................................................................................................................................. 7
Interface ........................................................................................................................................ 8
Mechanical................................................................................................................................... 8
Environmental .............................................................................................................................. 9
Process.......................................................................................................................................... 9
Approvals (verify against device nameplate)..................................................................... 10
Programmer (infrared keypad) .............................................................................................. 10
Installation ........................................................................................................................11
Mounting location ...............................................................................................................................12
Location on a nozzle .................................................................................................................14
Polarization reference point ...................................................................................................14
Mounting Instructions .......................................................................................................................15
Mounting: Threaded Version .................................................................................................15
Horn Location on Nozzles ....................................................................................................... 16
Mounting: Stillpipe or Bypass (Sidepipe) ............................................................................16
Pipe requirements..................................................................................................................... 16
Mounting: Horn with Extension .............................................................................................18
SITRANS LR250 Dimensions ..................................................................................................19
Threaded Horn Antenna.......................................................................................................... 19
Dimensions: Horn with extensions ....................................................................................... 20
Dimensions: Flanged Horn...................................................................................................... 21
Dimensions: Flanges ..........................................................................................................................22
Wiring ................................................................................................................................24
Power .....................................................................................................................................................24
Connecting SITRANS LR250 .............................................................................................................24
Wiring setups for hazardous area installations ..........................................................................25
Intrinsically Safe wiring ........................................................................................................... 25
Non-incendive wiring (only for USA/Canada) ....................................................................28
Wiring drawing (Intrinsically Safe: FM/CSA) ...............................................................................29
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Safety Notes ...........................................................................................................................................1
Safety marking symbols ............................................................................................................1
The Manual ............................................................................................................................................1
FCC Conformity ......................................................................................................................................2
Application Examples .................................................................................................................2
Support ....................................................................................................................................................2
Abbreviations and Identifications ...........................................................................................2
Table of Contents
Table of Contents ...............................................................................................................i
Table of Contents
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Wiring drawing (Non-incendive: FM/CSA) ...................................................................................30
Instructions specific to hazardous area installations ................................................................31
Quick Start ........................................................................................................................33
Activating SITRANS LR250 ...............................................................................................................33
Measurement mode (RUN mode) ........................................................................................ 33
Programming SITRANS LR250 .........................................................................................................34
The handheld programmer and PROGRAM mode display .............................................34
Quick Start Wizard via the handheld programmer ...........................................................35
Level application example ................................................................................................................37
Auto False Echo Suppression ................................................................................................37
Quick Start Wizard via SIMATIC PDM .................................................................................38
Device Description (DD) .......................................................................................................... 38
Quick Start Wizard steps......................................................................................................... 39
Using Linearization via the Quick Start wizard ..................................................................42
Local Operation Interface ..............................................................................................46
The LCD Display ..................................................................................................................................46
Key functions in Measurement mode ..................................................................................47
PROGRAM mode display......................................................................................................... 48
Navigation view......................................................................................................................... 48
Programming via the handheld programmer ...............................................................................49
Echo Profile Viewing ................................................................................................................51
Operating SITRANS LR250 via SIMATIC PDM ...........................................................52
Functions in SIMATIC PDM ..............................................................................................................52
SIMATIC PDM Rev. 6.0, SP2 Features .................................................................................52
Accessing Functions ................................................................................................................52
Online Display ............................................................................................................................ 53
Changing parameter settings using SIMATIC PDM .........................................................53
Configuring a new device .......................................................................................................54
Calibrating LR 460 via PDM ....................................................................................................54
Reset ............................................................................................................................................ 55
Configuration Flag Reset (HART only).................................................................................. 55
Auto False Echo Suppression ................................................................................................ 55
Echo profile saving.................................................................................................................... 57
Trend Diagram (Level Trend over Time).............................................................................. 57
Application Examples ....................................................................................................58
Example 1: Liquid resin in storage vessel, level measurement .....................................58
Example 2: Horizontal vessel with volume measurement ...............................................59
Parameter Reference .....................................................................................................61
Pull-down menus via SIMATIC PDM ...................................................................................61
Quick Start Wizard ..............................................................................................................................61
Appendix A: Alphabetical Parameter List ..................................................................93
Appendix B: Programming Chart ..................................................................................95
Appendix C: Troubleshooting ........................................................................................97
Communication Troubleshooting ....................................................................................................97
Generally: ....................................................................................................................................97
Specifically: .................................................................................................................................97
General Fault Codes ...........................................................................................................................98
ii
Fault Codes ...........................................................................................................................................98
Operation Troubleshooting .............................................................................................................101
Unit Repair and Excluded Liability ................................................................................................104
Principles of Operation ....................................................................................................................105
Echo Processing ...............................................................................................................................105
Measurement Response .......................................................................................................106
Typical Receiver Signal ........................................................................................................ 106
Echo Lock ............................................................................................................................................107
Loss of Echo (LOE) ..................................................................................................................107
Fail-safe Mode ...................................................................................................................................107
Fail-safe Timers .......................................................................................................................107
Fail-safe value ..........................................................................................................................107
Far Range (Range Extension) .........................................................................................................108
False-Echo Suppression .................................................................................................................108
Near Range (Blanking) ..........................................................................................................108
Auto False-Echo Suppression ..............................................................................................108
mA Output ...........................................................................................................................................110
Maximum Process Temperature Chart .....................................................................111
Process Pressure/Temperature derating curves ................................................................112
Horn Antenna or Wave Guide – ANSI Hole Pattern, 150# ............................................113
Horn Antenna or Wave Guide DN Hole Pattern, PN16 ..................................................113
Appendix F: Loop power ..............................................................................................114
Typical Connection Drawing ................................................................................................114
Allowable operating area of SITRANS LR250 ..................................................................114
Curve 1 (General Purpose, Intrinsically Safe, Non-incendive) ....................................114
Curve 2 (Flameproof, Increased Safety, Explosion-proof) ............................................115
Startup Curve ...........................................................................................................................115
Appendix G: Special Applications .............................................................................116
Application Example: Stillpipe ..............................................................................................116
Appendix H: HART Communications ........................................................................117
SIMATIC PDM ...................................................................................................................................117
HART Device Description (DD) ......................................................................................................117
HART Communicator 375 ......................................................................................................118
Supported HART Commands: ........................................................................................................121
Universal and Common Practice Commands ..................................................................121
Device Specific Commands ..................................................................................................121
Appendix L: Software Revision History ....................................................................122
Glossary ..........................................................................................................................123
Index ................................................................................................................................127
LCD menu structure ......................................................................................................130
iii
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Appendix E: Technical Reference ..............................................................................105
Table of Contents
Appendix D: Maintenance ...........................................................................................104
iv
Table of Contents
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Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.1
WARNING: relates to a caution symbol on the product, and means
that failure to observe the necessary precautions can result in death,
serious injury, and/or considerable material damage.
WARNING1: means that failure to observe the necessary
precautions can result in death, serious injury, and/or considerable
material damage.
In manual
On product
Description
Earth (ground) Terminal
Protective Conductor Terminal
(Label on product: yellow background.) WARNING: refer
to accompanying documents (manual) for details.
The Manual
Notes:
• Please follow the installation and operating procedures for a quick, trouble-free
installation and to ensure the maximum accuracy and reliability of your SITRANS LR250.
• This manual applies to the SITRANS LR250 (HART) only.
This manual will help you set up your SITRANS LR250 for optimum performance. We
always welcome suggestions and comments about manual content, design, and
accessibility. Please direct your comments to techpubs.smpi@siemens.com.
For other Siemens Milltronics level measurement manuals, go to:
www.siemens.com/level and look under Level Measurement..
1.
This symbol is used when there is no corresponding caution symbol on the product.
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 1
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Safety marking symbols
SITRANS LR250
Note: means important information about the product or that part of the operating
manual.
FCC Conformity
US Installations only: Federal Communications Commission (FCC) rules
WARNING: Changes or modifications not expressly approved by
Siemens Milltronics could void the user’s authority to operate the
equipment.
SITRANS LR250
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Notes:
• This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment.
• This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference to radio communications, in which case
the user will be required to correct the interference at his own expense.
Application Examples
The application examples used in this manual illustrate typical installations using
SITRANS LR250. Because there is often a range of ways to approach an application,
other configurations may also apply.
In all examples, substitute your own application details. If the examples do not apply to
your application, check the applicable parameter reference for the available options.
Standard applications are found in the main body of the manual: for more specialized
applications, please see Appendix G: Special Applications, page 116.
Support
If you have questions you can access our 24-hour hotline at:
www.siemens.com/automation/support-request
Phone: +49 180 50 50 222.
Abbreviations and Identifications
Short
form
Long Form
A/D
Analog to digital
CE / FM /
CSA
Conformitè Europèene /
Factory Mutual / Canadian
Standards Association
Page 2
Description
Units
safety approval
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Short
form
Long Form
Ci
Internal capacitance
D/A
Digital to analog
DAC
Digital Analog Converter
Description
Units
Full Vacuum
control room apparatus
ESD
Electrostatic Discharge
HART
Highway Addressable
Remote Transducer
Ii
Input current
mA
Io
Output current
mA
IS
Intrinsically Safe
Li
Internal inductance
LRV
Lower Range Value
value for process empty level 4 mA1
LSL
Lower Sensor Limit
below which no PV is
anticipated
mH
milliHenry
10-3
Henry
µF
microFarad
10-6
Farad
µs
microsecond
10-6
Second
PED
Pressure Equipment
Directive
safety approval
pF
pico Farads
10-12
ppm
parts per million
PV
Primary Variable
safety approval
mH
Farad
measured value
SV
Secondary Variable
equivalent value
TVT
Time Varying Threshold
sensitivity threshold
Ui
Input voltage
Uo
Output voltage
URV
Upper Range Value
value for process full level
USL
Upper Sensor Limit
above which no PV is
anticipated
1.
20 mA1
100% is most commonly set to 20 mA, and 0% to 4 mA: however, the settings
can be reversed.
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Distributed Control System
FV
SITRANS LR250
DCS
SITRANS LR250
SITRANS LR250 is a 2-wire loop-powered, continuous level measuring instrument that
utilizes advanced pulse radar technology at 25 GHz. The instrument consists of an
electronic component coupled to the antenna and process connection. It is very easy to
install and set up, using either the infrared hand-held programmer locally, or using
SIMATIC PDM from a remote location.
SITRANS LR250
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Communication is via HART1. Signals are processed using Process Intelligence which
has been field-proven in over 500,000 applications worldwide (ultrasonic and radar).
SITRANS LR250 is available in numerous versions, several of which are approved for use
in hazardous areas. The approval rating is shown on the device nameplate.
Application
Type
Nonhazardous
LR250
Version
General
Purpose
Hazardous
Intrinsically
Safe (barrier
required)
Nonincendive
Approval Rating
CSAUS/C, FM, CE
Valid for:
Wiring
US/Canada,
Europe
See
page 29
ATEX II 1 G, EEx ia IIC T4
ATEX 1D, EEx tD A20 IP67 T90 °C
Europe
IECEx SIR 05.0031X
Ex ia IIC T4
EX tD A20 IP67 T90 °C
International
FM/CSA:
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III
US/Canada
See
page 29
US/Canada
See
page 30
FM/CSA:
Class I, Div. 2, Groups A, B, C, D T5
See
page 29
T4
Process Connections
The device is available with threaded or flange type process connections with a horn
antenna.
1.
Page 4
HART® is a registered trademark of the HART Communication Foundation.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Applications
Notes:
• Please refer to device nameplate for approval information.
• SITRANS LR250 is to be used only in the manner outlined in this manual, otherwise
protection provided by the equipment may be impaired.
SITRANS LR250 is designed to measure liquid levels in a variety of applications:
liquid bulk storage vessels
simple process vessels with gentle agitation
liquids
slurries
shield length: 100 mm (4"): use for
nozzles of 100 mm (4") or less in
length
7ML19985JE01
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shield length 250 mm (10"):
use for long nozzles of 250 mm (10")
or less in length
SITRANS LR250
•
•
•
•
SITRANS LR250 System Implementation
SITRANS LR2501supports HART2communication protocol, and SIMATIC PDM software.
Typical PLC/mA configuration with HART
active PLC
SITRANS LR250
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power supply1
R2= 250 Ω
HART modem
SITRANS LR250
HART
communicator
Programming
SITRANS LR250 carries out its level measurement function according to the set of built-in
parameters. You can make parameter changes via the hand programmer, via a PC using
SIMATIC PDM, or via a HART Handheld Communicator.
SITRANS LR250 Approvals and Certificates
Note: Please see Approvals (verify against device nameplate) on page 10 for an
approvals listing.
1.
Depending on the system design, the power supply may be separate from the
PLC, or integral to it.
2. A 250 Ohm resistor may be required if the loop resistance is less than 250 Ohms.
Page 6
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Specifications
Note: Siemens Milltronics makes every attempt to ensure the accuracy of these
specifications but reserves the right to change them at any time.
SITRANS LR250
Power
Nominal 24 V DC at
max. 550 Ohm:
For other configurations, see the chart in Appendix J:
Loop power on page 130
• Maximum 30 V DC
• 4 to 20 mA
Performance
Analog Output Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy)
0.125% of Span (including hysteresis and nonrepeatability)
• non-repeatability
0.025% of Span (included in non-linearity
specification)
• deadband (resolution)
0.0375% of Span (included in non-linearity
specification)
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Measurement Accuracy (measured in accordance with IEC 60770-1)
• non-linearity (accuracy)
the greater of: 10 mm (0.4"), or 0.10% of High
Calibration point value (including hysteresis and
non-repeatability)
• non-repeatability
5 mm (included in non-linearity specification)
• deadband (resolution)
5 mm (included in non-linearity specification)
Specifications
Reference operating conditions according to IEC 60770-1
• ambient temperature
+15 to +25 °C (+59 to +77 °F)
• humidity
45% to 75% relative humidity
• ambient pressure
860 to 1060 mbar g (86000 to 106000 N/m2 g)
Frequency
25.0 GHz
Measurement range1
0.3 to 20 m (1 to 65 ft)
Update time at 4 mA
1 second
Update time digital
≤ 1.5 seconds
Blanking distance2
42 mm (1.65") from end of horn
Influence of ambient temperature
< 0.006% / K (average over full temperature range,
referenced to maximum range)
Dielectric constant
• 1.5" and 2" horns
• 3" and 4" horns
εr >3
εr > 2
Memory:
• non-volatile EEPROM
• no battery required.
Interface
Specifications
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• HART
• configuration
• analog output
• display (local)3
standard, integral to analog output
Siemens SIMATIC PDM (PC), or
HART handheld communicator, or
Siemens Milltronics infrared hand-held programmer
4 to 20 mA ± 0.02 mA accuracy (for detail, see nonlinearity under Analog Output Accuracy on page 7)
dot matrix with bar graph (representing level)
Mechanical
Process Connections:
• threaded connection
• flange connection
• materials
Antenna:
• horn
• materials
1.5” or 2" NPT, BSP, or G [BS EN ISO 228-1]
2", 3", 4" (ANSI 150, 300#), 50, 80, 100 mm (PN16, 40, JIS 10K)
316 L stainless steel, optional Hastelloy C22
standard 1.5" (40mm) , 2" (48 mm), 3" (75 mm), and 4" (95
mm) horn, optional 100 mm (4") horn extension
316L stainless steel with PTFE emitter
optional Hastelloy C22 with PTFE emitter
1.
Minimum range is horn length + 50 mm. For the reference point for each configuration, see
SITRANS LR250 Dimensions on page 19
2.
See Near Range (Blanking) on page 108 for more details.
3.
Display quality will be degraded in temperatures below –25 °C (–13 °F) and above +65 °C (+149 °F).
Page 8
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Enclosure
• construction
• conduit entry
• ingress protection
Weight
• standard model
aluminum, polyester powder-coated
2 x M20x1.5, or 2 x ½" NPT
Type 4X/NEMA 4X, Type 6/NEMA 6, IP 67, IP68 (see note
below)
< 3 kg (6.6 lb) 37.5 mm (1.5") threaded connection with horn
antenna
Environmental
•
•
•
•
location
altitude
ambient temperature
relative humidity
• installation category
• pollution degree
indoor/ outdoor
5000 m (16,404 ft) max.
−40 to +80 °C (−40 to +176 °F)
suitable for outdoor
Type 4X/NEMA 4X, Type 6/NEMA 6, IP67, IP68 enclosure
(see note below)
Notes:
• temperature1
−40 to 150 °C (−40 to 302 °F)
(at process connection)
• pressure (vessel)1
Refer to Process Pressure/Temperature derating curves on
page 107 onwards.
1.
The specifications apply to the standard horn only. The maximum temperature is dependent on
the process connection, antenna materials, and vessel pressure. For more detail, or for other
configurations, see Maximum Process Temperature Chart on page 111, and Process Pressure/
Temperature derating curves beginning on page 112.
7ML19985JE01
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Process
Specifications
• Please check the ambient and operating temperatures under Enclosure on page 9,
and Approvals (verify against device nameplate) on page 10; also check Approvals
(verify against device nameplate) on page 10, for the specific configuration you are
about to use or install.
• Use appropriate conduit seals to maintain IP or NEMA rating.
Approvals (verify against device nameplate)
• General
CSAUS/C, FM, CE
• Radio
Europe (R&TTE), FCC, Industry Canada
• Hazardous Intrinsically Safe (Europe)
Non-incendive
ATEX II 1G, EEx ia IIC T4
ATEX II 1D, EEx tD A20 IP67 T90 °C
(International)
IECEx SIR 05.0031X, Ex ia IIC T4,
EX tD A20 IP67 T90 °C
(US/Canada)
FM/CSA: (barrier required)1
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III
T4
(US/Canada)
FM/CSA2 Class I, Div. 2,
Groups A, B, C, D
T5
Programmer (infrared keypad)
Siemens Milltronics Infrared IS (Intrinsically Safe) Hand Programmer for hazardous and
all other locations (battery is non-replaceable)
Specifications
mmmmm
• approval
•
•
•
•
•
•
ambient temperature
interface
power
weight
color
Part Number
ATEX II 1 G, EEx ia IIC T4, certificate SIRA 01ATEX2147
FM/CSA: Class I, Div. 1, Groups A, B, C, D
−20 to 40 °C (−5 to 104 °F)
proprietary infrared pulse signal
3 V lithium battery
150 g (0.3 lb)
black
7ML5830-2AJ
1.
See Wiring drawing (Intrinsically Safe: FM/CSA) on page 29 for drawing number 23650653.
2.
See Wiring drawing (Non-incendive: FM/CSA) on page 30 for drawing number 23650673.
Page 10
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Installation
WARNINGS:
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations.
• SITRANS LR250 is to be used only in the manner outlined in this manual,
otherwise protection provided by the device may be impaired.
• Never attempt to loosen, remove, or disassemble process connection
or instrument housing while vessel contents are under pressure.
• This product is designated as a Pressure Accessory per Directive
97/23/EC and is not intended for use as a safety device.
• Materials of construction are chosen based on their chemical
compatibility (or inertness) for general purposes. For exposure to
specific environments, check with chemical compatibility charts
before installing.
• The user is responsible for the selection of bolting and gasket materials
which will fall within the limits of the flange and its intended use and
which are suitable for the service conditions.
• Improper installation may result in loss of process pressure.
Notes:
1.
The process pressure boundary assembly comprises the components that act as a barrier
against pressure loss from the process vessel: that is, the combination of process connection
body and emitter, but normally excluding the electrical enclosure.
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Installation
• For European Union and member countries, installation must be according to ETSI
EN 302372.
• Refer to the device nameplate for approval information.
• The Process Device Tag shall remain with the process pressure boundary
assembly1. In the event the instrument package is replaced, the Process Device Tag
shall be transferred to the replacement unit.
• SITRANS LR250 units are hydrostatically tested, meeting or exceeding the
requirements of the ASME Boiler and Pressure Vessel Code and the European
Pressure Equipment Directive.
• The serial numbers stamped in each process connection body provide a unique
identification number indicating date of manufacture.
Example: MMDDYY – XXX (where MM = month, DD = day, YY = year, and
XXX= sequential unit produced
Further markings (space permitting) indicate flange configuration, size, pressure
class, material, and material heat code.
Mounting location
Recommendations:
•
•
Maintain ambient temperature within –40 to +80 °C (–40 to +176 °F).
Provide easy access for viewing the display and programming via the hand
programmer.
Provide an environment suitable to the housing rating and materials of construction.
Use a sunshield if the instrument will be exposed to direct sunlight (even though the
LCD has UV protection).
•
•
Precautions:
•
•
Avoid interference to the emission cone from obstructions or from the fill path.
Avoid central locations on vessels.
hand programmer
ambient temperature
(surrounding enclosure volume)
–40 °C to 80 °C (–40 °F to 176 °F)
nameplate
process
device tag
customersupplied
flange
process temperature
–40 to +150 °C (–40 to +302 °F)
WARNING: For vessels with conical or parabolic tops, avoid
mounting the instrument at the centre. (The concavity of the top can
focus echoes into the centre, giving false readings.)
Note: Under certain circumstances, it may be acceptable to mount SITRANS LR250 at
the centre of a flat-topped tank: please discuss this with your Siemens Milltronics
representative.
Coni
Installation
mmmmm
Fl
at
preferred
undesirable
Conical
Flat
Parabolic
GRAPHIC TO BE UPDATED
Page 12
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Keep the emission cone free of interference:
•
•
•
•
Make allowance for the emission cone spreading (see table showing beam width
on page 21).
Locate the antenna away from the side wall, to avoid interference from indirect
echoes.
Avoid interference from objects such as ladders or pipes, which can cause false
echoes.
Make sure the emission cone does not intersect the fill path:
allowance for beam width
Notes:
• beam width (defined at –3dB
boundary) depends on horn size:
see table showing beam width
on page 21
• For more detail on false echoes,
see Appendix F: Technical
Reference on page 102.
beam
width
GRAPHIC TO BE UPDATED
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 13
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Installation
7ML19985JE01
Location on a nozzle
On a nozzle, the horn should protrude a minimum or 100 mm (4") to avoid interference.
A manhole cover is typically a covered nozzle with a diameter 610 mm (24”) or greater. To
provide optimum signal conditions on a manhole cover, locate the horn off-center,
typically 100 mm (4") from the side.
retaining collar
threaded connection
shield
10 mm
(0.4")
GRAPHIC TO BE UPDATED
Note: For details on other applications, see Appendix G: Special Applications on
page 109.
Polarization reference point
For best results on a tank with obstructions, or a stillpipe with openings, orient the front
or back of the device toward the obstructions (see Mounting: Stillpipe or Bypass
(Sidepipe) on page 117 for an illustration.)
Installation
mmmmm
polarization
reference point
display
Page 14
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Mounting Instructions
Notes:
• The device can be rotated past 360° without damage. When mounting, rotate the
head so the polarization dot faces the closest wall. In stilling well applications, line
up the polarization dot with the vent hole.
• Do not rotate the enclosure after programming and vessel calibration, otherwise an
error may occur, caused by a polarity shift of the transmit pulse.
Mounting: Threaded Version
1.
Before inserting SITRANS LR250 into its mounting connection, check to ensure the
threads are matching, to avoid damaging them.
2. Simply screw SITRANS LR250 into the process connection, and hand tighten, or use
a wrench. For pressure applications, it will be necessary to use PTFE tape (or other
appropriate thread sealing compound) and tighten the process connection beyond
hand tight.
You can use 1.5” or 2” threaded process connections. There are three thread types: NPT,
BSP, and G.
316 S.S.
PTFE
GRAPHIC TO BE UPDATED
min. I.D. 100 mm (4")
A torque of 40 N-m (30 ft.lbs) is recommended
If you want to rotate the enclosure, use a 2 mm Allen key to loosen the set-screws
that secure the locking ring.
4.
Once the enclosure is in a suitable position, tighten the set-screws. .
WARNING: For pressure applications, it will be necessary to use
PTFE tape or other appropriate thread sealing compound, and to
tighten the process connection beyond hand-tight.
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 15
mmmmm
3.
Installation
Max. nozzle height 100 mm (4")
Horn Location on Nozzles
The end of the horn should protrude a
minimum of 10 mm (0.4”) to avoid interference with the nozzle
10 mm (0.4")
GRAPHIC TO BE UPDATED
Mounting: Stillpipe or Bypass (Sidepipe)
This mounting arrangement is an alternative to the waveguide antenna option. It is used
for products with an εr less than 3 or for extremely turbulent or vortex conditions. It can
also be used to provide optimum signal conditions on foaming materials.
Pipe requirements
Diameter
Suitable pipe diameters are 50 mm (2”) to 100 mm (4”).
Smoothness
One continuous length of metallic pipe is preferred, without joints. If joints are
unavoidable, you must machine them to close tolerances (± 0.25 mm [± 0.010”]) and weld
a connecting sleeve on the outside.
Installation
mmmmm
Mounting on a stillpipe
Mounting on a bypass
align
display
window
with
stillpipe
slots
align display
window with
vents
optimum
diameter
80 mm (3”)
GRAPHIC TO BE UPDATED
Page 16
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
SeePropagation Factor on page 66 for the related propagation factor.
Ensure there is a vent at the upper end of the side pipe to equalize pressure and keep the
liquid-level in the pipe constant with the liquid-level in the vessel.
Mounting: Horn with Extension
Use this combination if the nozzle is long and
the diameter is small.
A 100 mm (4") horn extension is available.
GRAPHIC TO BE UPDATED
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 17
mmmmm
Installation
7ML19985JE01
SITRANS LR250 Dimensions
Threaded Horn Antenna1
50 mm
(2.0")
1/2" NPT cable entry
(or alternatively, M20 cable gland)
threaded cover
109 mm
(4.3")
185 mm
(7.3")
154 mm
(6.1")
enclosure/
electronics
retaining
collar
158 mm
(6.2")
23 mm (0.9")
std. 296 mm (11.7") min.
option 446 mm (17.6") max.
process device
tag
mounting thread
121 mm
(4.8")
ref. point
shield length (internal)
standard: 100 mm (4")
optional: 250 mm (10")
????
GRAPHIC TO BE UPDATED
Installation
mmmmm
std. 575 mm (22.6") min.
option 725 mm (28.5") max.
Notes:
• Process temperature and pressure capabilities are dependent upon information on
the process device tag. Reference drawing listed on the tag is available on our
website. Go to the product page for SITRANS LR250 at: xxxxxxx.
• Signal amplitude increases with horn diameter, so use the largest practical size.
• Optional waveguide extensions and/or purging1 system can be installed between
the flange and the antenna.
1.
Page 18
An optional purging system provides an inlet on the flange where cooling air or cleaning fluid
may be supplied. The air or liquid passes through the flange and exits the inside of the horn to
clean the antenna system.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Dimensions: Horn with extensions
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 19
mmmmm
Installation
7ML19985JE01
Dimensions: Flanged Horn
GRAPHIC TO BE UPDATED
enclosure/electronics
name-plate
187 mm (7.4")
retaining collar
process
device
tag
flange
reference
point
horn
height
Ø 80 mm
(3")
7 mm
(0.27")
horn
horn O.D.
Installation
mmmmm
1.
Nominal Horn Size
Horn O.D.
Horn Height
beam width1
37.5 mm (1.5")
40.0 mm (1.57”)
100 mm (3.93")
19 degrees
50 mm (2”)
47.8 mm (1.88”)
96 mm (3.78”)
15 degrees
80 mm (3”)
74.8 mm (2.94”)
164 mm (6.46”)
10 degrees
100 mm (4”)
94.8 mm (3.73”)
214 mm (8.43”)
8 degrees
– 3dB in E-plane.
Notes:
• Process temperature and pressure capabilities are dependent upon information on
the process device tag. Reference drawing listed on the tag is available on our
website at www.siemens.com/processautomation, on the product page for
SITRANS LR250, under Process Connection Specifications.
• Signal amplitude increases with horn diameter, so use the largest practical size.
• Optional extensions can be installed between the flange and the antenna.
Page 20
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Dimensions: Flanges
bolt hole Ø
enclosure
mounting holes
(threaded)
flange O.D.
20 mm (0.8”), nominal
horn/waveguide
mounting holes
(threaded)
bolt hole
circle Ø
GRAPHIC TO BE UPDATED
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 21
mmmmm
See chart on page 23 for further details on flange sizes.
Installation
process side
Flange Size Flange O.D.
Bolt Hole
Circle Ø
Bolt Hole Ø
Number
of Bolts
2”
ANSI 150#
6.0”
4.75”
0.7”
3”
ANSI 150#
7.5”
6.0”
0.75”
4”
ANSI 150#
9.0”
7.50”
0.75”
2”
ANSI 300#**
6.50”
5.00”
0.75”
3”
ANSI 300#
8.25”
6.62”
0.88”
4”
ANSI 300#
10.00”
7.88”
0.88”
50 mm
DIN PN 16
165 mm
125 mm
18 mm
80 mm
DIN PN 16
200 mm
160 mm
18 mm
100 mm
DIN PN 16
220 mm
180 mm
18 mm
50 mm
DIN PN 40
165 mm
125 mm
18 mm
80 mm
DIN PN 40
200 mm
160 mm
18 mm
100 mm
DIN PN 40
235 mm
190 mm
22 mm
50 mm
JIS 10K
155 mm
120 mm
19 mm
80 mm
JIS 10K
185 mm
150 mm
19 mm
100 mm
JIS 10K
210 mm
175 mm
19 mm
Installation
mmmmm
Pipe size
Page 22
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 23
mmmmm
Installation
7ML19985JE01
Wiring
Power
WARNINGS:
The DC input terminals shall be supplied from a source providing
electrical isolation between the input and output, in order to meet
the applicable safety requirements of IEC 61010-1.
All field wiring must have insulation suitable for rated voltages.
Connecting SITRANS LR250
WARNINGS:
• Check the nameplate on your instrument, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• Read Instructions specific to hazardous area installations on page 31.
Notes:
•
•
Use twisted pair cable: AWG 22 to 14 (0.34 mm2 to 2.5 mm2).
Separate cables and conduits may be required to conform to standard
instrumentation wiring practices or electrical codes.
Use a 2 mm Allen key to loosen the lid-lock set screw.
Unscrew the cover for access to the terminals. Use a
screwdriver for added leverage, if necessary.
If you want to rotate the enclosure, use the 2 mm
Allen key to loosen the locking ring.
locking ring
threaded connection
cable gland1
(or NPT cable entry)
Wiring
mmmmm
plug1
1.
Page 24
Depending on the approval rating, glands and plugs may be supplied with your
instrument.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
1.
2.
3.
4.
Strip the cable jacket for approximately 70 mm
(2.75") from the end of the cable, and thread
the wires through the gland1.
Connect the wires to the terminals as shown:
the polarity is identified on the terminal block.
Ground the instrument according to local
regulations.
Tighten the gland to form a good seal.
cable shield
(if used)
Wiring setups for hazardous
area installations
There are five wiring options for hazardous area installations. In all cases, check the
nameplate on your instrument, and confirm the approval rating.
1. Intrinsically Safe wiring
SITRANS LR 250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V
Nom., 30 V
Max., 4 - 20mA
Siemens Milltronics Process Instruments Inc., Peterborough
Made in Canada
SITRANS LR 250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V
Nom., 30 V
Max., 4 - 20mA
Siemens Milltronics Process Instruments Inc., Peterborough
Made in Canada
Ii = 120 mA
Ui = 30V
Li = 0.1mH
Pi = 0.8W
Ci = 15nF
HART
SIRA
II 1 D IP68 Txx
II 1 G EEx ia IIC T4
03ATEX2142X
IECEx SIR 05.0031X
Ex ia IIC T4
WARNING: Possible Static Hazard, Do Not Rub Or Clean On Site.
CANADA: 267P - LR 250
Exia per drawing: 23650653
Class I, Div1,Group A,B,C,D
Class II, Div1,Group G
Class III
HART
FCC ID: NJA - LR 250
Temp. Code : T4
I max = 120mA
P max = 0.8 W
V max = 30V
C i = 15 nF
L i = 0.1 mH
WARNING: Possible Static Hazard, Do Not Rub Or Clean On Site.
Approval Rating
Valid for:
ATEX II 1 G, EEx ia IIC T4
ATEX II 1 D, EEx tD A20 IP67 T90 °C
Europe
IECEx SIR 05.0031X, Ex ia IIC T4, Ex tD A20 IP67 T90 °C
International
FM/CSA:
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III
US/Canada
If cable is routed through conduit, use only approved suitable-size hubs for
waterproof applications.
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 25
mmmmm
Wiring
1.
For power demands see Curve 1 (General Purpose, Intrinsically Safe, Nonincendive) on page 111.
For wiring requirements:
Europe/International: Follow local regulations.
US/Canada:
Download Wiring drawing (Intrinsically Safe: FM/CSA)
drawing number 23650563 from the product page of our
website at: ##### or see page 29.
Approved dust-tight and water-tight conduit seals are required for outdoor
NEMA 4X / type 4X / NEMA 6, IP67, IP68 locations.
Recommended intrinsically safe barriers are listed on page 26.
Refer to Instructions specific to hazardous area installations on page 31.
•
•
•
•
•
Note: Selecting a suitable PLC input module, power supply, or barrier requires
knowledge about Intrinsic Safety and the application. It is the responsibility of the
installer to ensure that the intrinsically safe installation complies with both the
apparatus approval requirements and the relevant national code of practice.
Notes:
• The following list is not exhaustive: there are many IS power supplies and barriers
on the market which will work with the LR 250.
• The PLC input modules and barriers listed below have all been tested and are
functionally compatible with the LR 250.
Manufacturer
Part Number
Siemens
SM331 PCS7 HART Input Module
Stahl
Type 9461 Analog Input 2-Wire HART Module (for IS1)
Siemens
4 x Analog Input I 2-Wire HART Module (for ET200iSP)
Bartec
Profibus Interface - 8 x 4...20mA Input Module
ABB
AI930N 4 x Analog Input HART Module (for S900)
Siemens
SM331 2 x Analog Input HART Module (for ET200M)
Siemens
SM331 4 x Analog Input Module (for ET200M)
Wiring
mmmmm
PLC Input Modules
Page 26
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Passive Shunt Diode Barriers
Note: A well regulated supply voltage is required.
Manufacturer
Part Number
MTL
787SP+ (Dual Channel)
MTL
7787P+ (Dual Channel)
Stahl
9001/01-280-100-10 (Single Channel)
Stahl
9002/01-280-110-10 (Dual Channel)
How to select a passive barrier for SITRANS LR 250
1.
2.
3.
4.
5.
6.
Make sure that the barrier safety description is suitable for the LR 250 Intrinsically
Safe (IS) input parameters.
Determine the maximum end-to-end resistance of the barrier (Re-e) from the data
sheet.
Determine other loop resistance (Rloop): for example, sense resistance, displays,
and/or PLC inputs.
Calculate Rworking = Re-e + Rloop.
Determine any non-linear voltage drops due to the barrier (Vbarrier) from the barrier
data sheet (for example, voltage drops due to diodes).
Calculate Vworking = Vsupply – Vbarrier.
Using Vworking and Rworking, confirm that operation is within the shaded area of
the graph Loop Voltage versus Loop Resistance on page 111
Active barriers (repeating barriers)
Manufacturer
Part Number
MTL
706
MTL
7206
Stahl
9001/51-280-110-14
Pepperl+Fuchs
KSD2-CI-S-Ex
Pepperl+Fuchs
KFD2-STC3-Ex1
MTL
E02009 - verify
MTL
E02010
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 27
mmmmm
Wiring
7ML19985JE01
2. Non-incendive wiring (only for USA/Canada)
SITRANS LR 250
7ML1234-56789-0ABC-D
Serial No: GYZ / S1034567
Encl.: NEMA / TYPE 4X, 6, IP67, IP68
Amb.Temp.: – 40 °C to 80 °C
Power Rating: 24V
Nom., 30 V
CANADA: 267P - LR 250
FCC ID: NJA - LR 250
26 Ghz HART
Max., 4 - 20mA
Siemens Milltronics Process Instruments Inc., Peterborough
Made in Canada
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions
1)This device may not cause harmful interference and
2)This device must accept any interference received,
including interference that may cause undesired operation
Approval Rating
FM/CSA:
Class I, Div. 2, Groups A, B, C, D T5
•
Valid for:
US/Canada
For power demands see Curve 1 (General Purpose, Intrinsically Safe, Nonincendive) on page 111.
For wiring requirements download Wiring drawing (Non-incendive: FM/CSA)
drawing number 23650637 from the product page of our website at: #####, or see
page 30.
Wiring
mmmmm
•
Class I, Div. 2,
Group A, B, C, D
Temp. Code: T5
Page 28
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
ENTITY CONCEPT DEFINITION: THE ENTITY CONCEPT ALLOWS THE INTERCONNECTIONS OF INTRINSICALLY
SAFE APPARATUS TO ASSOCIATED APPARATUS NOT SPECIFICALLY EXAMINED IN SUCH COMBINATIONS.
THE CRITERIA FOR INTERCONNECTION IS THAT THE VOLTAGE AND CURRENT WITH INTRINSICALLY SAFE
APPARATUS CAN RECEIVE AND REMAIN INTRINSICALLY SAFE, CONSIDERING FAULTS, MUST BE EQUAL OR
GREATER THAN THE VOLTAGE (Uo) AND CURRENT (Io) LEVELS WHICH CAN BE DELIVERED BY
THE ASSOCIATED APPARATUS, CONSIDERING FAULTS AND APPLICABLE FACTORS. IN ADDITION, THE MAX.
UNPROTECTED CAPACITANCE (Ci) AND INDUCTANCE (Li) OF THE INTRINSICALLY SAFE APPARATUS, INCL.
INTERCONNECTING WIRING, MUST BE EQUAL OR LESS THAN THE CAPACITANCE AND INDUCTANCE WHICH
CAN BE SAFELY CONNECTED TO THE ASSOCIATED APPARATUS.
THE ENTITY EVALUATION CONCEPT IS A METHOD USED TO DETERMINE
ACCEPTABLE COMBINATIONS OF INTRINSICALLY SAFE APPARATUS AND
CONNECTED ASSOCIATED APPARATUS THAT HAVE NOT BEEN
INVESTIGATED IN SUCH COMBINATION.
8. EXTERNAL BONDING HUBS ARE REQUIRED WHEN BOTH CONDUIT ENTRIES ARE USED.
7. USE SUPPLY WIRES RATED FOR 10 ° ABOVE.
6. INSTALL PER NEC / CEC
5. SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY.
4. UNDER THE ENTITY EVALUATION CONCEPT, THE LR 200 HAS THE
FOLLOWING:
Ui = 30 VOLTS D.C.
Ii = 120 mA
Pi = 0.8W
Ci = 15 nF
Li = 0.1 mH
3. THE MAXIMUM VOLTAGE OF THE NON-INTRINSICALLY SAFE APPARATUS
MUST NOT EXCEED 250 V rms.
2. APPROVED DUST-TIGHT AND WATER-TIGHT CONDUIT SEALS ARE REQUIRED
FOR CLASS II, DIV.1, Gr. E, F, G AND OUTDOOR NEMA 4X / TYPE 4X LOCATIONS
1. ANY CSA / FM INTRINSICALLY SAFE BARRIER / POWER SUPPLY, WITH ITS OUTPUT
VOLTAGE (Uo) NOT EXCEEDING 30 V AND ITS OUTPUT CURRENT (Io) LIMITED BY
LOAD RESISTANCE (Ro); SUCH THAT Io = Uo / Ro, DOES NOT EXCEED 120 mA
NOTES:
FOR INTERNAL
USE ONLY
INTRINSICALLY SAFE
(SEE NOTE 1)
2365065300
E. DE SIMONE
S. NGUYEN
PETERBOROUGH
R. CLYSDALE
25 / JULY / 2005
RADAR
Product Group
RPC
NTS
1:1
23650653
SN
Load
4 – 20 mA
SITRANS LR 250, HART
INTRINSICALLY SAFE
CONNECTION DIAGRAM
FOR APPROVAL
HAZARDOUS AREA
TO BE REPLACED WITH FLIP-OUT PAGE 23650653
Page 29
mmmmm
Wiring
7ML19985JE01
SAFE AREA APPARATUS
NON-HAZARDOUS AREA
JULY
25/2005
Wiring drawing (Intrinsically Safe: FM/CSA)
Wiring drawing (Non-incendive: FM/CSA)
TO BE REPLACED WITH FLIP-OUT PAGE 23650637
NON-HAZARDOUS LOCATION
(SAFE)
HAZARDOUS LOCATION
CLASS I, DIV.2, GROUPS A, B, C, D
METAL CONDUIT
1/2 “ NPT
SITRANS LR 250
24 V
POWER
SUPPLY
NOTES:
FOR CONSTRUCTION
JULY
20/2005
SN
RPC
Product Group
RADAR
R. CLYSDALE
FOR INTERNAL
USE ONLY
T. LITTLE
S. NGUYEN
PETERBOROUGH
SITRANS LR 250
CLASS I, Div. 2
CONNECTION DRAWING
23650637
1:1
Wiring
2365063700
mmmmm
NTS
20 / JULY / 2005
Page 30
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Instructions specific to hazardous area
installations
(Reference European ATEX Directive 94/9/EC,
Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number SIRA
03ATEX2142X:
1.
2.
3.
4.
5.
6.
7.
8.
9.
For use and assembly, refer to the main instructions.
The equipment is certified for use as Category 1GD equipment.
The equipment may be used with flammable gases and vapors with apparatus group
IIC and temperature class T4.
The equipment is certified for use in an ambient temperature range of –40 °C to
80 °C.
The equipment has not been assessed as a safety related device (as referred to by
Directive 94/9/EC Annex II, clause 1.5).
Installation and inspection of this equipment shall be carried out by suitably trained
personnel in accordance with the applicable code of practice (EN 60079-14 and
EN 60079-17 in Europe).
Repair of this equipment shall be carried out by suitably trained personnel in
accordance with the applicable code of practice (e.g. EN 60079-19 within Europe).
Components to be incorporated into or used as replacements in the equipment shall
be fitted by suitably trained personnel in accordance with the manufacturer’s
documentation.
The ‘X’ suffix to the certificate number relates to the following special conditions for
safe use:
a. Parts of the enclosure may be non-conducting and may generate an ignitioncapable level of electrostatic charge under certain extreme conditions. The user
should ensure that the equipment is not installed in a location where it may be
subjected to external influences which might cause a build-up of electrostatic
charge on non-conducting surfaces.
b. As either Aluminum, Magnesium, Titanium or Zirconium may be used at the
accessible surface of the equipment, in the event of rare incidents, ignition
sources due to impact and friction sparks could occur. This shall be considered
when the SITRANS LR 250 is being installed in locations that specifically require
group II, category 1G equipment.
(continued on next page)
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 31
mmmmm
Wiring
7ML19985JE01
10. The certification of this equipment relies upon the following materials used in its
construction:
Aluminum alloy ANSI ref. A380.0 (aluminum enclosure option)
Valox 365 (injection moulded plastic enclosure option)
Ultem 1010 (window on plastic enclosure option)
Stycast 2651-40FR encapsulant, catalyst II
The detailed composition of Aluminum A380.0 as used in the metal enclosure
(threaded lid option only) is as follows:
Si – 8.5%, Fe – 1.3%, Cu – 3.5%, Mn – 0.5%, Mg – 0.1%, Ni – 0.1%, Zn – 3%,
Sn – 0.35%, others – 0.5%, Al - balance
In applications requiring category 1G or 1/2G equipment, SITRANS LR250 must not
be exposed to materials to which the wetted parts1 of the instrument are not
resistant.
11. Equipment Marking
The equipment marking contains at least the information on the product nameplate.
LR 250 Version
Approval Rating
Nameplate
ATEX II 1 G, EEx ia IIC T4
ATEX II 1 D, EEx tD A20 IP67 T90 °C
Intrinsically Safe
FM/CSA:
Class I, Div. 1, Groups A, B, C, D
Class II, Div. 1, Groups E, F, G
Class III
T4
See page 25
FM/CSA:
Class I, Div. 2, Groups A, B, C, D T5
See page 28
Wiring
mmmmm
Non-incendive
IECEx SIR 05.0031X, Ex ia IIC, Ex tD
A20 IP67 T90 °C
T4
1.
Page 32
Any surface (probe, o-rings, gaskets) exposed to the process fluid or gas.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Quick Start
Note: SITRANS LR250 supports SIMATIC PDM version 6.0 with SP2.
A Quick Start wizard groups together all the settings you need for a simple application.
There are two ways to access the wizard:
•
Quick Start Wizard via the handheld programmer on page 35
Quick Start Wizard via SIMATIC PDM on page 38
•
Activating SITRANS LR250
Measurement mode (RUN mode) 1
Normal operation
LEVEL
[M]
18.91
21.40 °C
DATA EXCH.
1 – toggle indicator for linear units
or %
2 – selected operation: level, space,
or distance
3 – measured value (level, space or
distance)
4 – units
5 – bar graph indicates level
6 – secondary region indicates
electronics temperature, echo
confidence, loop current, or
distance1
7 – text area displays status
messages
8 – device status indicator
Fault present
S: 0 LOE
S: 53 CONFIG LO
If more than one fault is present, the status indicator and text for each fault alternate at
2 second intervals. See General Fault Codes on page 79 for a list.
1.
In response to a key press request. For details, see Navigating in PROGRAM mode on page 73.
7ML19985JE01
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 33
mmmmm
Power up the instrument. SITRANS LR250 automatically starts up in Measurement (RUN)
mode.
Quick Start
Note: Keep infrared devices such as laptops, cell phones, and PDAs, away from
SITRANS LR250 to prevent inadvertent operation.
Programming SITRANS LR250
For detailed information see Appendix F: Local Operation Interface on page 94. or
Parameter Reference on page 41.
To program SITRANS LR250 using the Quick Start wizard, follow the instructions
below.
•
•
The handheld programmer and PROGRAM mode display
Quick Start
mmmmm
Notes:
• See Appendix F: Local Operation Interface on page 94 for more detailed information
on the programmer and the LCD display.
• SITRANS LR250 automatically returns to Measurement mode after a period of
inactivity in PROGRAM mode (between 15 seconds and two minutes, depending on
the menu level).
•
Point the programmer at the display (from a
maximum distance of 600 mm [2 ft.]), then
press Right ARROW
to activate
PROGRAM mode and open menu level 1.
(Mode
opens the menu level last
displayed in PROGRAM mode within the last
10 minutes, unless power has been cycled
since then. Then menu level 1 will be
displayed.)
•
Use ARROW keys to navigate to a menu item.
The current selection is highlighted and the
level number is shown. A pointer is visible if a
lower level exists.
•
Press Down or Up ARROWS
to the next selection.
to scroll
•
At higher menu levels press Right ARROW
to open the next menu level or Left
ARROW
to back up one level.
•
At the lowest menu level, parameters are
listed, and no pointers are visible. Press Right
ARROW
to open parameter view.
•
Page 34
In parameter view, the parameter name and
number are displayed, as well as current
selection or value. Press Right ARROW
to open Edit mode.
handheld programmer
(ordered separately)
display
Max. 600 mm
(2 ft)
GRAPHIC TO
BE REVISED
unlocked
menu
icon
INPUT
current item
number
2.2.1
SENSOR CALIB
VOL CONVERSION
VOLUME BREAKPT
ECHO PROC.
parameter name
APPLICATIO..
current
item
pointer
parameter
number
2.2.1.2
LIQUID
PREVIOUS
BACK
EDIT
parameter
selection
NEXT
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML1998JE01
•
The current selection is highlighted.
If required, scroll to a new selection or key in a new
value and press Right ARROW
to accept it. The LCD
displays the new value.
•
Press Mode
to return to Measurement mode.
APPLICATIO..
2.2.1.2
SOLID
LIQUID
LIQUID LOW DK
Quick Start Wizard via the handheld programmer
Notes:
a.
Point the programmer at the display (from a maximum distance of 600 mm [2 ft.]),
then press Right ARROW
to activate PROGRAM mode and open menu level 1.
b.
Press Right ARROW
view.
twice to navigate to menu item 1.1 and open parameter
c.
d.
Press Right ARROW
to open Edit mode or Down ARROW
to accept default
values and move directly to the next item.
To change a setting, scroll to the desired item or key in a new value.
e.
After modifying a value, press Right ARROW
f.
ARROW
to move to the next item.
Quick Start settings take effect only after you select Yes to Apply changes in step 1.7.
to accept it and press Down
1.1. Application Type
LIQUID
SOLID
LIQUID LOW DK (low dielectric liquid)
Options
1.2. Response Rate
Sets the reaction speed of the device to measurement changes in the target range.
Options
SLOW
MED
FAST
0.1 m/minute
1.0 m/minute
10.0m/minute
Use a setting just faster than the maximum filling or emptying rate (whichever is
greater). Slower settings provide higher accuracy: faster settings allow for more
level fluctuation
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1. Quick Start
Quick Start
• The wizard is a complete package and the settings are inter-related.
• Because the settings are inter-related, the initial Quick Start parameter values are
not default values and do not necessarily reflect the current device configuration.
• Do not use the Quick Start wizard to modify individual parameters: see instead
Parameter Reference on page 41.
1.3. Sensor Units
Select the units for the Quick Start variables (high and low calibration point, and level,
distance, or space)
Options
M, CM, MM, FT, IN
1.4. Operation
Operation types
sensor reference
point1
high
calibration
point
GRAPHIC TO
BE REVISED
distance
Quick Start
mmmmm
space
level
low calibration point
NO SERVICE
Options
LEVEL
Distance to material surface referenced from Low Calibration
Point (process empty level).
SPACE
Distance to material surface referenced from High Calibration
Point (process full level).
DISTANCE
Distance to material surface referenced from Sensor
Reference Point.
1.5. Low Calibration Point
Distance from Sensor Reference to Low Calibration Point: usually process empty
level. (See 1.4. Operation for an illustration.)
Values
Range: 0.0000 to 20.000 m
1.6. High Calibration Point
Distance from Sensor Reference to High Calibration Point: usually process full level.
(See 1.4. Operation for an illustration.)
Range
Values
0.0000 to 20.000 m
1.7. Apply? (Apply changes)
In order to save the Quick Start settings it is necessary to select Yes to apply changes.
Options
Press Mode
1.
YES, NO
to return to Measurement mode. SITRANS LR250 is now ready to operate.
The point to which all of the above parameters are referenced. See SITRANS LR 250
Dimensions on page 14.
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SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Level application example
SITRANS LR250
1.0 m
High
Calibration
Point
Sensor
Reference
Point
15.5 m
Level
Fill rate = 0.09 m/minute (15.5 / 180).
Response rate has been set to
slow: 0.1 m/minute, or slightly faster
than the fill rate
Quick Start Setting
APPLICATION
LIQUID
RESPONSE RATE
SLOW
UNITS
OPERATION
LEVEL
Description
Response rate = 0.1 m/minute.
Material level referenced from Low Calibration Point.
LOW CALIBRATION POINT
15.5
Process empty level.
HIGH CALIBRATION POINT
1.0
Process full level.
APPLY? (CHANGES)
YES
Save new settings.
Auto False Echo Suppression
If SITRANS LR250 displays a false high level, or the reading is fluctuating between the
correct level and a false high level, you can use the Auto False Echo Suppression
parameters to prevent false echo detection. See 2.2.5. TVT (Auto False Echo Suppression)
setup on page 41 for instructions.
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GRAPHIC TO BE
REVISED
Quick Start
Low
Calibration
Point
The application is a vessel that
takes an average 3 hours to fill and
3 weeks to empty.
Quick Start Wizard via SIMATIC PDM
The graphical Quick Start Wizard groups together all the settings you need to make for a
simple application into 4 steps.
To use HART or PROFIBUS PA, you will need a PC configuration tool: we recommend
SIMATIC PDM.
Please consult the operating instructions or online help for details on using SIMATIC
PDM. (Application Guides for setting up Siemens HART and PROFIBUS PA instruments
with SIMATIC PDM are available on our website: www.siemens.com/
processautomation.)
Quick Start
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Device Description (DD)
You will need the DD for SIMATIC PDM version 6.0 with SP2. You can locate the DD in
Device Catalog, under Sensors/Level/Echo/Siemens Milltronics/SITRANS LR250. If you do
not see SITRANS LR250 under Siemens Milltronics, you can download the DD from the
product page of our website at: https://pia.khe.siemens.com/index.asp?Nr=7427, under
Downloads.
Save the files to your computer, and extract the zipped file to an easily accessed location.
Launch SIMATIC PDM – Manager Device Catalog, browse to the unzipped DD file and
select it.
Configuring a new device
1.
Set Address (default for PROFIBUS PA is 126; for HART is 0).
•
Press Right ARROW
to activate PROGRAM mode and open menu level 1.
•
Press Down ARROW
item 5).
repeatedly to navigate to COMMUNICATION (menu
•
Press Right ARROW
to display the parameter list.
•
Scroll to DEVICE ADDRESS and press Right ARROW
view.
•
If required, Press Right ARROW
press Right ARROW
parameter view.
•
2.
3.
4.
5.
6.
Page 38
Press Mode
to open parameter
to open Edit mode. Key in a new value and
to accept it. The LCD displays the new value in
to exit PROGRAM mode
You will need the most up-to-date Device Description (DD) for your instrument.
Launch SIMATIC PDM – Manager Device Catalog, browse to the unzipped DD file
and select it.
Launch SIMATIC Manager and create a new project for LR250. Application Guides
for setting up HART and PROFIBUS PA devices with SIMATIC PDM.can be
downloaded from the product page of our website at:
https://pia.khe.siemens.com/index.asp?Nr=7427
Open the menu Device – Reset and click on Factory Reset.
Upload parameters to the PC/PG.
Calibrate the device via the Quick Start Wizard.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Quick Start Wizard steps
Notes:
• The Quick Start settings are not independent parameters. The settings are interrelated, and changes only apply when you click Transfer at the end of step 4.
• Do not use the Quick Start Wizard to modify individual parameters: see instead
Parameter Reference on page 41.
• Click BACK to return and revise settings, or Cancel to exit the Quick Start.
• The layout of the dialog boxes shown may vary according to the resolution setting for
your computer monitor.
Quick Start steps
setting for your computer monitor.
Quick
Start
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Launch SIMATIC Manager, create a new project, open the menu Device – Quick Start,
and follow steps 1 to 5.
Quick Start
Note: The layout of the dialog boxes shown may vary according to the resolution
Note: At any stage after step 1, you can click BACK, to return and revise settings, or
Cancel to exit the Quick Start.
Step 1 – Identification
Quick Start
mmmmm
Click NEXT to accept the default values. (Description, Message, and Installation Date
fields can be left blank.)
Step 2 – Application
Select the application type, and click NEXT.
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Step 3 – Vessel Shape
Select the vessel shape, and click NEXT.
Set the parameters, and click NEXT.
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mmmmm
Quick Start
Step 4 – Range
Step 5 – Summary
Quick Start
mmmmm
Check parameter settings, and click BACK to return and revise values, or FINISH to
transfer values to the device.
The message Quick Setup was successful will appear. Click OK.
Using Linearization via the Quick Start wizard
You can use the linearization feature to define a more complex vessel shape and enter up
to 32 level breakpoints where the corresponding volume is known. The values
corresponding to 100% and 0% levels must be entered. The breakpoints can be ordered
from top to bottom, or the reverse.
Ex ample:
Breakpoint
number
Level
value
20
Breakpoint
Number
Level value Volume value
(m)
(l)
500
3000
20
8000
Note: values are for example purposes only.
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Open the menu Device – Quick Start:
1.
2.
3.
In Step 1 – Identification, press Next, to accept default values.
In Step 2 – Application, select a volume application type, for example Volume in a
vessel, and press Next.
In Step 3 – Vessel Shape, choose the vessel shape option Linearization Table and
click Linearization.
a. In the Linearization window click on the appropriate Breakpoint tab to open the
dialog window.
Breakpoints 1 - 8
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Quick Start
linearization
Quick Start
mmmmm
b. Enter the desired level and volume values, and press OK.
Note: Reset resets values to the values in the offline table.
4.
Page 44
c. In the Step 3 window, click NEXT.
In Step 4 – Range Setup, enter parameter values, and click NEXT.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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5.
In Step 5 – Summary, check parameter values. Click BACK to return and revise
values, or FINISH to transfer values to the device.
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Quick Start
The message Quick Setup was successful will appear. Click OK.
Local Operation Interface
Note: The complete range of parameters is only accessible via PDM. See Parameter
Reference on page 47 for a complete list with instructions.
•
•
•
The handheld programmer allows you to change parameter values and set
operating conditions to suit your specific application.
View settings on the LCD display, or request an echo profile, in PROGRAM mode.
View the measured value and additional status information, on the LCD display in
Measurement mode (RUN mode).
Parameter access
Parameters are identified by name and organized into function groups, then arranged in a
hierarchical menu structure (see LCD menu structure on page 115). For example:
2. SETUP
2.2. INPUT
2.2.1 SENSOR CALIB
2.2.1.13. RESPONSE RATE
The LCD Display
Measurement mode (RUN mode)
Normal operation
[M]
18.91
Local Interface
mmmmm
LEVEL
1 – measured value (level, space or distance)
2 – toggle indicator for linear values or %
3 – level, distance, or space
4 – units
5 – bar graph indicates level
6 – secondary region indicates electronics
temperature, echo confidence, loop
current, or distance in response to a key
press. (See Key functions in
Measurement mode on page 47).
21.40 °C
DATA EXCH.
7 – text area displays status messages
8 – device status indicator
Fault present
S: 0 LOE
S: 53 CONFIG LO
If more than one fault is present, the status indicator and text for each fault alternate at
2 second intervals. See General Fault Codes on page 79 for a list.
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Handheld Programmer (Part No. 7ML5830-2AJ)
numeric keys
function keys
Key functions in Measurement mode
Key
Function
Updates the loop
current.
Result
New value is displayed in LCD secondary region.
Updates internal
enclosure temperature New value is displayed in LCD secondary region.
reading.
Updates distance
measurement.
New value is displayed in LCD secondary region.
Mode opens
PROGRAM mode.
Opens the menu level last displayed in this power cycle,
unless power has been cycled since exiting PROGRAM
mode or more than 10 minutes have elapsed since
PROGRAM mode was used. Then top level menu will be
displayed.
Right ARROW
opens PROGRAM
mode.
Opens the top level menu.
Up or Down ARROW
toggles between
linear units and
percent.
LCD displays measured value in either linear units or
percent.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Page 47
mmmmm
New value is displayed in LCD secondary region.
Local Interface
7ML19985JE01
Updates echo
confidence value.
PROGRAM mode display
Navigation view
INPUT
lock/unlock
icon
current
menu
2.2.1
SENSOR CALIB
VOL CONVERSION
VOLUME BREAKPT
ECHO PROC.
menu bar
(see below
for details)
current item
number
current item
pointer
Parameter view
APPLICATIO..
2.2.1.2
LIQUID
parameter
name
parameter
name
PREVIOUS
BACK
parameter
number
EDIT
NEXT
Edit view
2.2.1.2
SOLID
LIQUID
LIQUID LOW DK
Local Interface
mmmmm
APPLICATIO..
Menu bar in navigation view
•
•
•
•
Page 48
A visible menu bar indicates the menu list is
too long to display all items.
The depth and relative position of the item
band on the menu bar indicates the length of
the menu list, and approximate position of the
current item in the list.
A deeper band indicates fewer items.
A band halfway down the menu bar indicates
the current item is halfway down the list.
SENSOR CAL
menu
bar
item
band
2.2.1.6
LOW CALIB. PT.
HIGH CALIB. PT.
NEAR RANGE
FAR RANGE
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Programming via the handheld programmer
Notes:
• Do not use the Quick Start settings if you want to modify an individual parameter.
• The Quick Start wizard groups the settings required for a simple application into one
package and the settings are inter-related.
• Because the settings are inter-related, the initial Quick Start parameter values are
not default values and do not necessarily reflect the current device configuration.
• SITRANS LR250 automatically returns to Measurement mode after a period of
inactivity in PROGRAM mode (between 25 seconds and 10 minutes, depending on
the menu level).
The handheld programmer allows you to change parameter values and set operating
conditions to suit your specific application.
•
For the complete list of parameters with instructions, see Parameter Reference on page 47.
•
See LCD menu structure on page 115 for a chart.
1. Enter PROGRAM mode
•
Point the programmer at the display (from a
handheld programmer
(ordered separately)
maximum distance of 600 mm [2 ft.]).
•
Right ARROW
mode and opens menu level 1.
•
Mode
display
activates PROGRAM
Max. 600 mm (2 ft)
opens the menu level last
displayed in PROGRAM mode within the
last 10 minutes, or menu level 1 if power
has been cycled since then.
2. Navigating: key functions in Navigation mode
Name
menu or parameter
Scroll to previous or next menu or
parameter.
menu
Go to first parameter in the selected
menu, or open next menu.
parameter
Open Edit mode.
Left ARROW
menu or parameter
Open parent menu.
Mode
menu or parameter
Change to MEASUREMENT mode.
Home
menu or parameter
Open top level menu at first item:
menu 1, item 1.
Right ARROW
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Up or Down
ARROW
Menu level
Local Interface
Key
3. Editing in PROGRAM mode
Selecting a listed option
a.
Navigate to the desired parameter.
b.
Press Right ARROW
parameter view.
c.
d.
parameter
name
APPLICATIO..
LIQUID
to open
Press Right ARROW
again to open
Edit mode. The current selection is
highlighted.
Scroll to a new selection.
EDIT
NEXT
APPLICATIO..
Navigate to the desired parameter.
b.
Press Right ARROW
to open
parameter view. The current value is
displayed.
c.
d.
Local Interface
mmmmm
e.
2.2.1.2
SOLID
LIQUID
LIQUID LOW DK
Changing a numeric value
a.
current
selection
PREVIOUS
BACK
Press Right ARROW
to accept it
The LCD returns to parameter view and
displays the new selection.
parameter
number
2.2.1.2
parameter
name
LOW CALIB..
parameter
number
2.2.1.6
20.000 M
current
value
PREVIOUS
BACK
EDIT
NEXT
Press Right ARROW
again to open Edit mode.
The current value is highlighted.
Key in a new value.
LOW CALIB..
2.2.1.6
20.000 M
+20.000
Press Right ARROW
to accept it. The LCD returns
to parameter view and displays the new selection.
Key functions in Edit mode
Key
Name
Up or
Down
ARROW
Right
ARROW
Page 50
Function
Selecting
options
Scrolls to item.
Numeric
editing
- Increments or decrements digits
- Toggles plus and minus sign
Selecting
options
- Accepts the data (writes the parameter)
- Changes from Edit to Navigation mode
Numeric
editing
- Moves cursor one space to the right
- or with cursor on Enter sign, accepts the data
and changes from Edit to Navigation mode
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Key
Name
Selecting
options
Cancels Edit mode without changing the
parameter
Numeric
editing
- Moves cursor to plus/minus sign if this is the
first key pressed
- or moves cursor one space to the left.
Clear
Numeric
editing
Erases the display.
Decimal
point
Numeric
editing
Enters a decimal point.
Left
ARROW:
Function (Cont’d)
Plus or
Numeric
minus sign editing
Numeral
to
Numeric
editing
Changes the sign of the entered value.
Enters the corresponding character.
Echo Profile Viewing
1.
In PROGRAM mode, navigate to LEVEL METER >
DIAGNOSTICS > ECHO PROFILE
2.
Press Right ARROW
3.
In the Profile screen, press Up ARROW
to select the Transmit icon, and
Right ARROW to update the profile.
DIAGNOSTICS
3.1
ECHO PROFILE
MEAS. VALUES
REMAIN. DEV. LIFE
REMAIN. SENS.LIFE
to request a profile.
transmit icon, selected
exit icon, selected
4.
Press Down ARROW to select the Exit
icon, then Right ARROW to return to
previous menu.
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exit icon, unselected
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Local Interface
transmit icon, unselected
Operating SITRANS LR250 via
SIMATIC PDM
Note: For a complete list of parameters with instructions, see Parameter Reference
starting on page 61.
SIMATIC PDM is a software package used to commission and maintain SITRANS LR250 and
other process devices. Please consult the operating instructions or online help for details on
using SIMATIC PDM. (You can find more information at www.fielddevices.com: go to Products
and Solutions > Products and Systems > Process Device Manager.)
Functions in SIMATIC PDM
SIMATIC PDM monitors the process values, alarms and status signals of the device. It allows
you to display, compare, adjust, verify, and simulate process device data.
For information on adjusting parameter values and viewing the results, see Alternatively, enter
values for Point and Offset directly into the dialog boxes. on page 56 and Accessing Functions
on page 57.
SIMATIC PDM Rev. 6.0, SP2 Features
The graphical interface facilitates the following tasks:
•
•
•
•
•
•
Configuring LR250 for a simple application: see Quick Start Wizard via SIMATIC
PDM on page 38.
Volume measurement in an irregular vessel: see Using Linearization via the Quick
Start wizard on page 42.
Level monitoring: see Online Display on page 53
Echo monitoring: see Echo profile saving on page 56
Level trend monitoring: see Alternatively, enter values for Point and Offset directly
into the dialog boxes. on page 56
False Echo Suppression: see Auto False Echo Suppression Setup on page 55 and
Manual TVT Shaper on page 56.
Accessing Functions
SIMATIC PDM
mmmmm
You have access to a number of functions via pull-down menus from the menu bar View
menus include: Display (real-time), Echo Profile, and Trend (level over time) diagram, among
others.
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Online Display
The online display allows you to compare outputs in real time. Open the menu View – Display.
Changing parameter settings using SIMATIC PDM
Note: For a complete list of parameters, see Parameter Reference on page 61.
1.
2.
3.
Launch SIMATIC PDM, connect to SITRANS LR250, and upload data from the
device.
Adjust parameter values in the parameter value field then press Enter. The status
fields read Changed..
Open the Device menu, click on Download to device, then use File – Save, to save
parameter settings. The status fields are cleared.
value
fields
Parameters accessed via pull-down menus
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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mmmmm
7ML19985JE01
SIMATIC PDM
See Pull-down menus via SIMATIC PDM on page 43 for a complete list of parameters that can
be accessed only via pull-down menus in SIMATIC PDM.
Configuring a new device
Device Description (DD)
You will need the DD for SIMATIC PDM version 6.0 with SP2. You can locate the DD in
Device Catalog, under Sensors/Level/Echo/Siemens Milltronics/SITRANS LR 460. If you do
not see SITRANS LR 460 under Siemens Milltronics, you can download the DD from the
product page of our website at: https://pia.khe.siemens.com/index.asp?Nr=14655, under
Downloads.
Save the files to your computer, and extract the zipped file to an easily accessed location.
Launch SIMATIC PDM – Manager Device Catalog, browse to the unzipped DD file and
select it.
1.
2.
3.
4.
5.
6.
Set Address (default for PROFIBUS PA is 126; for HART is 0).
•
Point the handheld programmer at the display then press Mode
PROGRAM mode, menu item 1.0.
•
Press Down ARROW
, Right ARROW
Address (menu item 2.1.2).
•
Press Right ARROW
•
If required, key in a new value and press Right ARROW
to accept it. The LCD
displays the new value and the PROGRAM icon disappears.
, Right ARROW
to open Edit mode: the PROGRAM icon
to activate
to navigate to
will flash.
You will need the most up-to-date Device Description (DD) for your instrument.
Launch SIMATIC PDM – Manager Device Catalog, browse to the unzipped DD file
and select it.
Launch SIMATIC Manager and create a new project for LR 460. Application Guides
for setting up HART and PROFIBUS PA devices with SIMATIC PDM.can be
downloaded from the product page of our website at:
https://pia.khe.siemens.com/index.asp?Nr=14655
Open the Menu Device – Reset and click on Factory Reset.
Upload parameters to the PC/PG.
Calibrate the device.
Calibrating LR 460 via PDM
•
SIMATIC PDM
mmmmm
•
•
See Quick Start Wizard via SIMATIC PDM on page 30 and follow 4 steps to setup
for a simple application.
Open the menu Device – Sensor Calibration to set parameters individually.
For a complete list of parameters see Parameter Reference on page 43.
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Reset
Device Reset
This has the same effect as cycling power. It does not reset any parameters.
Factory Reset
Use Factory Reset to reset all parameters excluding device addresses to the default
settings.
1. Open the menu Device – Reset and click on Factory Reset.
2. After the reset is complete upload parameters to the PC/PG.
Configuration Flag Reset (HART only)
To reset the configuration flag to zero, open the menu Device – Configuration Flag Reset
and execute a reset.
Auto False Echo Suppression
Use this parameter to learn a new TVT curve, to avoid false echoes caused by
obstructions. See Auto False-Echo Suppression on page 71 for a more detailed
explanation, and Auto False Echo Suppression on page 74 for instructions
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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SIMATIC PDM
7ML19985JE01
Manual TVT Shaper
Notes:
• For more details, see Auto False-Echo Suppression on page 75.
• Double click each axis and record the Xscale and Data Scale values, so that you can
restore the default view by resetting to these values.
Open the menu Device – TVT Shaper
X cursor
TVT curve
echo profile
SIMATIC PDM
mmmmm
•
•
Page 56
Change the position of the X cursor on the TVT curve using the Point+ and Point–
buttons: raise and lower the curve using Offset+ and Offset–.
Alternatively, enter values for Point and Offset directly into the dialog boxes.
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Echo profile saving
Notes:
• Double click each axis and record the Xscale and Data Scale values, so that you can
restore the default view by resetting to these values.
• You can save a profile or delete a saved profile.
• After saving a profile open menu View – Show echo profile.
save
delete
Trend Diagram (Level Trend over Time)
Notes:
• Double click each axis and record the Xscale and Data Scale values, so that you can
restore the default view by resetting to these values.
Open the menu View – Trend
trend line
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SIMATIC PDM
7ML19985JE01
Application Examples
You can use these examples as setup references. Enter the values in the parameter
tables to select the corresponding functions.
Example 1: Liquid resin in storage vessel, level
measurement
Applications
mmmmm
Notes:
• The minimum distance from the flange face to the target is limited by near range
2.2.1.11.
• Only set 2.2.5.6 (Auto False Echo Suppression) if the product is at least 2 m (78”)
away from the flange face. If it is closer, leave 2.2.5.6 at 1 until the level drops
and the distance increases beyond 2 m (78”).
Sensor
reference
point
The application is to obtain a level
measurement and corresponding 4 to 20 mA
High
proportional to resin levels in a
Cal
D output
storage
vessel.
Point
100% Level
5m
4.5 m
Low Cal
Point
0% Level
Parameter
Description
2.2.1.5
2.2.7.1
2.2.1.4
2.2.1.6
2.2.1.7
2.4.1
2.4.2
2.2.5.7
operation
measurement response
units
low calibration point
high calibration point
Failsafe timer
Failsafe Material Level
Auto False-Echo
Suppression Distance
2.2.5.6
Auto False-Echo
Suppression
1.
2.
In the event of a loss of echo, SITRANS LR250
is to go into Failsafe Hi after 2 minutes.
Value
Level
Med
4.5
HI
[Distance1
minus 0.42 m]
2 then
Function
Level
1 m/minute
meters
5m
4.5 m
2 minutes
Hi
Sets length of learned
TVT curve2 to use
Enables the use of
learned TVT curve2.
Distance to product from reference point.
For more details see Range (Auto Suppression Range) on page 75 and Auto
False Echo Suppression on page 74.
Return to Measurement: press Mode
Page 58
Low Calibration Point is the bottom of the
tank, which is 5 m from the antenna flange
face. High Calibration Point is 4.5 m from the
vessel bottom. The maximum rate of filling or
emptying is about 0.2 m/min.
to start normal operation.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Example 2: Horizontal vessel with volume measurement
Notes:
• The minimum distance from the flange face to the target is limited by near range
2.2.1.11.
• Only set 2.2.5.6 Auto False Echo Suppression if the product is at least 2 m (78”)
away from the flange face. If it is closer, leave 2.2.5.6 at 1 until the level drops
and the distance increases beyond 2 m (78”).
The application is to obtain a level measurement and corresponding 4 to 20 mA output
proportional to vessel volume in a chemical vessel.
Sensor
reference
point
3.5 m
Hi Cal
Point
100% = 8000 liters
3.0 m
Low
Cal
Point
7ML19985JE01
Volume
reading
2.2.3.2
2.2.3.3
2.2.3.2
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In the event of a loss of echo, SITRANS LR250 is to go into Failsafe Hi after 2 minutes.
Applications
Low Calibration Point is the bottom of the tank, which is 3.5 m from the antenna flange
face. High Calibration Point is 3.0 m from the vessel bottom. The maximum rate of filling or
emptying is about 0.2 m/min. Selecting tank shape i at 2.2.2.1 (Vessel Shape), and entering
values for A and L, will give a volume reading instead of level.
Description
Values
2.2.1.5
operation
Level
2.2.7.1
measurement
response
units
low calibration point
high calibration point
vessel shape
maximum volume
vessel dimension A
vessel dimension L
Failsafe timer
Failsafe
Auto False-Echo
Suppression Range
Med
2.2.1.4
2.2.1.6
2.2.1.7
2.2.2.1
2.2.3.1
2.2.3.2
2.2.3.3
2.4.1
2.4.2
Applications
mmmmm
Parameter
2.2.5.7
2.2.5.6
1.
2.
Auto False-Echo
Suppression
Volume replaces Level when
a tank shape is selected at
2.2.2.1
1 m/minute
3.5
8000
.8
HI
meters
3.5 m
3m
parabolic ends
8000 liters
0.8 meters
6 meters
2 minutes
Hi
Sets length of learned TVT
[Distance1
minus 0.42 m] curve to use
2 then
Enables the use of learned
TVT curve2.
Distance to product from reference point.
For more details see Range (Auto Suppression Range) on page 75 and Auto
False Echo Suppression on page 74. For an explanation, see Auto False-Echo
Suppression on page 108.
Return to Measurement: press Mode
Page 60
Function
to start normal operation.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Parameter Reference
Parameters are identified by name and organized into function groups. Menus arranged
on up to five levels give access to associated features and options.
Parameters accessible via the handheld programmer are preceded by a number. (See
LCD menu structure on page 115 for a chart.) Parameters not preceded by a number are
accessible only via SIMATIC PDM.
Some parameters are accessible in SIMATIC PDM via pull-down menus. Where those
parameters can also be accessed via the handheld programmer, they are found in the
numbered list, and directions for SIMATIC PDM are given beside the individual
parameter. Page references for further information can be found under Pull-down menus
via SIMATIC PDM below.
Pull-down menus via SIMATIC PDM
Device menus
page
Communication path
Download to device
Upload to PC/PG
Update diagnostic status
Quick Start
Auto False Echo Suppression
TVT shaper
62
74
76
Maintenance
Selftest
Reset
Configuration Flag Reset
87
87
D/A Trim
Write Locking
42
48
Simulate AO
42
HART Communication
Simulation
87
42
Sensor Calibration
50
View menus
page
Display
Trend
Echo Profile
Show Echo Profile
Status
Read Analog Value
Clear Faults
Peak Values
Wear
37
37
37
52
48
Quick Start Wizard
The Quick Start wizard groups together all the settings you need to configure for a simple
application.
7ML19985JE01
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•
•
The wizard is a complete package and settings are inter-related.
Because the settings are inter-related, the initial Quick Start parameter values are
not default values and do not necessarily reflect the current device configuration.
Do not use the wizard to modify individual parameters.
You can access the Quick Start wizard either via SIMATIC PDM, or via the handheld
programmer.
Parameters
•
•
1. Quick Start
1.1. Application Type
LIQUID
SOLID
LIQUID LOW DK (low dielectric liquid)
Options
1.2. Response Rate
Sets the reaction speed of the device to measurement changes in the target range.
SLOW
MED
FAST
Options
0.1 m/minute
1.0 m/minute
10.0m/minute
Use a setting just faster than the maximum filling or emptying rate (whichever is
greater). Slower settings provide higher accuracy: faster settings allow for more level
fluctuation
1.3. Sensor Units
Select the units for the Quick Start variables (high and low calibration point, and level,
distance, or space).
M, CM, MM, FT, IN
Options
1.4. Operation
NO SERVICE
LEVEL
Options
SPACE
DISTANCE
Distance to material surface referenced from Low Calibration
Point (process empty level).
Distance to material surface referenced from High Calibration
Point (process full level).
Distance to material surface referenced from Sensor
Reference Point.
Operation types1
sensor reference point1
distance
space
high
calibration
point
level
Parameters
mmmmm
low calibration point
1.
Page 62
The point from which level measurement is referenced. See SITRANS LR 200 Dimensions on page 14 for the standard rod antenna. See Appendix D: Flange Adapter Versions on page 83 for other configurations.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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1.5. Low Calibration Point
Distance from Sensor Reference to Low Calibration Point: usually process empty
level. (See Operation types for an illustration.)
Values
Range: 0.0000 to 20.000 m
1.6. High Calibration Point
Distance from Sensor Reference to High Calibration Point: usually process full level.
(See Operation types for an illustration.)
Range
Values
0.0000 to 20.000 m
1.7. Apply? (Apply changes)
In order to save the Quick Start settings it is necessary to select Yes and apply
changes.
Options
YES, NO
2. Setup
Notes:
• See Programming via the handheld programmer on page 32 or Appendix M:
Operating SITRANS LR 200 (PROFIBUS PA) via SIMATIC PDM on page 118 for
instructions.
• Default settings in the parameter tables are indicated with an asterisk (*) unless
explicitly stated.
• Values shown in the following tables can be entered via the handheld programmer.
2.1. Device
2.1.1. LCD Contrast
Allows you to adjust the LCD contrast. to improve readability.
Range: 0 (High contrast) to 20 (Low contrast). Default: 8
Values
2.2. Input
2.2.1. Sensor Calibration
2.2.1.1. Antenna
Identifies horn configuration and automatically adjusts the Near Range
(blanking) distance to suit.
Options
1.5" horn
2" horn
3" horn
4" horn
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7ML19985JE01
Parameters
Use this parameter to reset the Near Range (blanking) distance, if your horn
has to be replaced by one of a different type.
2.2.1.2. Application
Automatically configures the device to operate in the chosen application
type, by changing one or more of the following parameters: 2.2.1.14.
Propagation Factor , 2.2.4.1.2. Position , and/or 2.2.4.4.3. Low dK Material
Tracking .
SOLID
Options
* LIQUID
LIQUID LOW DK (low dielectric liquid)
Related
parameters
2.2.1.14. Propagation Factor
2.2.4.1.2. Position
2.2.4.4.3. Low dK Material Tracking
You can configure each of the related parameters, to suit your particular
application.
2.2.1.3. Response Rate
Sets the reaction speed of the device to measurement changes in the target
range.
Related
parameters
Response
Rate
Fill Rate
Empty Rate
slow
0.1 m/minute
0.1 m/minute
medium
1 m/minute
1 m/minute
fast
10 m/minute
10 m/minute
Note: Changing Response Rate resets Fill Rate and Empty Rate.
Use a setting just faster than the maximum filling or emptying rate
(whichever is greater). Slower settings provide higher accuracy: faster
settings allow for more level fluctuation.
2.2.1.4. Sensor Units
Units the sensor is measuring in.
m, cm, mm, ft, in
Default: m
Parameters
mmmmm
Values
Page 64
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2.2.1.5. Operation
NO SERVICE
LEVEL
Distance to material surface referenced from Low
Calibration Point (process empty level).
SPACE
Distance to material surface referenced from High
Calibration Point (process full level).
Options
DISTANCE
Distance to material surface referenced from Sensor
Reference Point.
Operation types1
sensor
reference point1
distance
high
calibration
point
space
level
low
calibration
point
2.2.1.6. Low Calibration Pt.
Distance from Sensor Reference to Low Calibration Point (corresponding to
Low Level Point). Unit is defined in Sensor units. (In SIMATIC PDM, go to
Device menu > Sensor Calibration, then click on Additional Information, to
see an illustration.)2
High Level Point
(default: 100%)
High
Calibration
Point
Sensor
value1
sensor
reference
point2
Level
Low Level Point
(default: 0%)
Values
Range: 0 to 20 m. Default 20.000 m
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mmmmm
The point from which level measurement is referenced. See SITRANS LR 200 Dimensions on page 14 for the standard rod antenna. See Appendix D: Flange Adapter Versions on page 83 for other configurations.
Parameters
1.
Level Offset
Low
Calibration
Point
2.2.1.7. High Calibration Pt.
Distance from Sensor Reference to High Calibration Point (corresponding to
High Level Point). Unit is defined in Sensor units. (In SIMATIC PDM, go to
Device menu > Sensor Calibration, then click on Additional Information, to
see an illustration.)
Range: 0 to 20 m. Default 0.000 m
Values
2.2.1.12. Near Range
The range in front of the device (measured from the sensor reference point)
within which any echoes will be ignored, defined in sensor units. This is
sometimes referred to as blanking or a dead zone. The factory set range is
dependent on the horn type.
Compensates, for example if the sensor head is changed.
Options
Range: 0 to 20 m
Antenna Type
1.5" horn
2" horn
3" horn
4" horn
Near Range Default Setting
0.185 m (7.28")
0.217 m (8.54")
0.250 m (9.84")
0.305 m (12.01")
2.2.1.13. Far Range
Allows the material level to drop below Low Calibration Point without
generating a Loss of Echo (LOE) state, defined in %. This is sometimes
referred to as Range Extension.
Range: 0 to >1300 (max. value depends on Low Calibration Point settin). Default 5.000%
Options
Use this feature if the measured surface can drop below the Low Cal. Point
in normal operation. Enter value as a percentage of Low Calibration Point.
2.2.1.14. Propagation Factor
Compensates for the change in microwave velocity from propagation in free
space.The value is used to compensate for changes in microwave velocity
due to propagation within a metal stillpipe, instead of in free space.
Values
Range: 0.3000 to 1.5000
Default: 1.000
Pipe Size (I.D.)a
Propagation Factor
50 mm (2”)
80 mm (3”)
100 mm (4”)
150 mm (6”)
200 mm (8”)
Parameters
mmmmm
a.
2.
Page 66
0.990
0.996
0.998
0.999
1.000
Since pipe dimensions may vary slightly, the propagation factor
may also vary.
The value produced by the echo processing which represents the distance from sensor reference point to the target.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Note: When operating with a waveguide antenna or stillpipe, values for
the parameter 2.2.4.4.3. Low dK Material Tracking and for the propagation
factor should be set according to the antenna/pipe size: see the table
below..
Antenna/Pipe
Size (I.D.)
50 mm (2”) 80 mm (3”) 100 mm (4”)
Propagation
Factor
Low dK material
tracking value
150 mm
(6”)
200 mm
(8”)
0.990
0.9957
0.9965
0.999
0.9994
Cal Lo –
700 mm
Cal Lo –
1000 mm
Cal Lo –
1000 mm
Cal Lo –
1000 mm
Cal Lo –
1000 mm
2.2.1.15. Level Offset
A constant offset that can be added to Level to form Level output. The unit is
defined in Sensor Units.
Default: 0 m
Values
2.2.2. Volume conversion
Carries out a volume conversion from a level value.
2.2.2.1. Vessel Shape
Defines the vessel shape and allows the LR250 to calculate volume instead of
level. If "none" is selected, no volume conversion is performed. Select the
vessel shape matching the monitored vessel or reservoir.
Vessel Shape
None
Description
Also required
no volume calculation
N/A
required
flat end horizontal
cylinder
maximum volume
sphere
maximum volume
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Parameters
7ML19985JE01
Vessel Shape
Description
upright, linear (flat
bottom)
conical or pyramidal
bottom
parabolic bottom
Also required
maximum volume
maximum volume,
dimension A
maximum volume,
dimension A
half-sphere bottom
maximum volume,
dimension A
flat sloped bottom
maximum volume,
dimension A
parabolic end
horizontal cylinder
maximum volume,
dimension A,
dimension L
linearization table
(level/volume
breakpoints)
maximum volume,
level breakpoints,
volume breakpoints
Parameters
mmmmm
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2.2.3. Volume Breakpoints
2.2.3.1. Maximum Volume
The maximum volume of the tank. Enter the vessel volume corresponding to
High Calibration Point. For example, if your maximum vessel volume is 8000 L,
enter a value of 8000. The units of volume are not entered, but are implied.
Values
Related Parameters
Range: 0.0000 to 99999
Default: 100.0
Low Calibration Point
High Calibration Point
Vessel Shape
2.2.3.2. Dimension A
The height of the vessel bottom in sensor units when the bottom is conical,
pyramidal, parabolic, spherical, or flat -sloped. If the vessel is horizontal with
parabolic ends, the depth of the end. See 2.2.2.1. Vessel Shape for an
illustration.
Values
Related Parameters
Range: 0.0000 to 99999 in units
Default: 0.0
Vessel Shape
2.2.3.3. Dimension L
Length of the cylindrical section of a horizontal parabolic end vessel, in
sensor units. See 2.2.2.1. Vessel Shape for an illustration.
Values
Related Parameters
Range: 0.0000 to 99999 in units
Default: 0.0
Vessel Shape
2.2.3.4. Table 1-8
If your vessel shape is more complex than any of the preconfigured shapes,
you can define the shape as a series of segments. A value is assigned to each
level breakpoint and a corresponding value is assigned to each volume
breakpoint. Level values are defined in sensor units. Volume units are defined
by the user but are not explicitly stated in the SITRANS LR250.
Level Values
Volume Values
Range: 0.0000 to 99999 (m, cm, mm, ft, in)
Default: 0.0
Range: 0.0000 to 99999
Default: 0.0
Enter up to 32 level breakpoints, where the corresponding volume is known.
The values corresponding to 100% and 0% levels must be entered. The
breakpoints can be ordered from top to bottom, or the reverse.
a.
7ML19985JE01
Go to the appropriate table for the particular breakpoint you wish to
adjust: for example, go to Table 1-8 for breakpoint 1.
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Entering breakpoints via the hand-held programmer:
Parameters
Breakpoints are grouped into four tables: Table 1-8, Table 9-16, Table 17-24,
and Table 25-32.
Under Table 1-8, go to 2.2.3.4.1. Level 1 to enter the level value for the
breakpoint 1.
a. Under Table 1-8, go to 2.2.3.4.2. Vol 1 to enter the volume value for
the breakpoint 1
a. Repeat steps a to c, till values have been entered for all required
breakpoints.
2.2.3.4.1. Level 1
a. Press Right ARROW to open Edit mode.
b. Enter level value and press Right ARROW to accept it.
c. Press Down ARROW to move to corresponding volume
breakpoint.
a.
2.2.3.4.2. Vol 1
a. Press Right ARROW to open Edit mode.
b. Enter volume value and press Right ARROW to accept it.
c. Press Down ARROW to move to next level breakpoint.
See example below for illustration.
Example:
Breakpoint
number
Level
value
20
Level
Breakpoint
value
Number
(m)
Volume
value
(l)
500
3000
20
8000
Note: values are for example purposes only.
Entering breakpoints via PDM:
a.
a.
a.
Parameters
mmmmm
a.
Level values are defined in Sensor Units. If you want to change the
unit, go to Input > Sensor Calibration > Sensor Units and make a
new selection.
Go to > Volume conversion and select Linearization Table option.
Go to > Volume breakpoints > Table 1-8 and enter values for level
and volume breakpoints in table.
Repeat step c till values have been entered for all required
breakpoints using other tables as required.
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2.2.4. Echo Processing
2.2.4.1. Echo select
2.2.4.1.1. Algorithm
Selects the algorithm to be applied to the echo profile to extract the true
echo.
Options
BLF
First echo
Largest echo (reserved for SMPI service
personnel)
Best of Largest or First echo (reserved for
SMPI service personnel)
2.2.4.1.2. Position
Note: If dielectric of fluid to be monitored is less than 3, we recommend
setting Position to 4 (Hybrid) and 2.2.4.4.3. Low dK Material Tracking to
0.5 m (1.64 ft).
Defines where on the echo the distance measurement is determined.
Options
Related
parameters
Center
* Hybrid (Center and CLEF)
CLEF (Constrained Leading Edge Fit)
2.2.4.4.Tank Bottom Algorithm (see below)
2.2.4.1.3. Echo Threshold
Sets the minimum echo confidence that the echo must meet in order to
prevent a Loss of Echo condition and the expiration of the LOE timer.
When Echo Confidence exceeds the Confidence Threshold, the echo is
evaluated.
Values
Related
Parameters
Range: 0 to 99
Default: 10
LOE Timer
Use this feature when an incorrect material level is reported.
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Parameters
7ML19985JE01
2.2.4.2. Sampling
2.2.4.2.1. Echo Lock
Note: Ensure the agitator is always running while SITRANS LR250 is
monitoring the vessel, to avoid stationary blade detection.
Selects the measurement verification process.
Lock Off
Options
Maximum Verification
* Material Agitator
Total Lock
Related
parameters
Fill Rate
Empty Rate
Echo Lock Sampling
Echo Lock Window
Algorithm
If a material agitator or mixer is used in the monitored vessel, Echo Lock
should be set for Maximum Verification or Material Agitator to avoid
agitator blade detection.
2.2.4.2.4. Sampling up1
Once echo is outside the window, a specified number of consecutive
echoes must appear above the echo locked onto, before measurement is
accepted as valid.
2.2.4.2.5. Sampling down1
Once echo is outside the window, a specified number of consecutive
echoes must appear below the echo locked onto, before measurement is
accepted as valid.
2.2.4.2.6. Window1
A "distance window" centered on the echo, used to derive the reading.
When a new measurement is in the window, the window is re-centered
and the reading is calculated (see Display before Auto False Echo
Suppression, page 75 for an illustration).
When the value is 0, the window is automatically calculated after each
measurement.
• For slower Measurement Response values, the window is narrow.
• For faster Measurement Response values, the window becomes
progressively wider.
Note: The echo lock window is stored as standard sample, but
Parameters
mmmmm
displayed sensor units. Any value entered for the echo lock window will
be rounded to the nearest sample.
1.
Page 72
This parameter is for use only by Siemens Milltronics service technicians.
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2.2.4.3. Filtering
2.2.4.3.3. Damping Filter
The time constant for the damping filter. The engineering unit is always in
seconds. This is an exponential filter. When a change occurs in teh input,
the output will be at 63.2% of the change in one time constatn, and will be
at full change after 5 time constants
Values
Range: 0 to 100.000 s
Default: 10.000 m
We recommend setting 2.2.4.1.2. Position to 4 (Hybrid Algorithm) and
setting 2.2.4.4. Tank Bottom Algorithm to 0.5 m (1.64).
2.2.4.4. Tank Bottom Algorithm
2.2.4.4.3. Low dK Material Tracking
Compensates for materials with a low dK value, which may cause the tank
bottom to be reported as the level instead of the actual material level at
low level conditions.
Values
Range: 0 to 20 m (0 to 65.6 ft)
0.5 m
Default: 0.0 m
Related
parameters
2.2.4.1.2.Position (see above)
If the dK of the material is less than 3 we recommend setting this
parameter to 0.5 m.
2.2.4.5. Noise
2.2.4.5.1. Confidence
Measures echo reliability. It displays the echo confidence of the
measurement echo from the last shot. Confidence Threshold defines the
minimum criterion for echo confidence.
Values (view only)
0 to 99
----
Shot not used
Related Parameters Confidence Threshold
Open the menu View – Profile.
2.2.4.5.2. Strength
Displays the absolute strength (in dB above 1 µV rms) of the echo selected
as the measurement echo.
Values (view only)
–20 to 99
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Parameters
Open the menu View – Profile.
2.2.4.5.3. Noise Average
Displays the average ambient noise (in dB above 1 µV rms) of a noise
profile. Noise level is a combination of transient noise and receiving
circuitry. After a measurement, the values from the previous noise shot
will be displayed.
Open the menu View – Noise.
2.2.5. TVT (Auto False Echo Suppression) setup
Notes:
• If modifying these parameters via SIMATIC PDM, close all online windows.
• This function works best when the vessel is empty or nearly empty. Use it
only if there is a minimum distance of 2 meters from the radar instrument to
the material.
• Set Auto False Echo Suppression and Auto False Echo Suppression Distance
during startup, if possible.
• If the vessel contains an agitator, the agitator should be running.
First SITRANS LR250 learns the echo profile. Then the learned profile, or part of the
learned profile, is used to screen out false echoes. See Display before Auto False
Echo Suppression on page 75 for examples.
2.2.5.1. TVT Hover Level
Defines in percent how high the TVT (Time Varying Threshold) curve is placed
above the echo profile, with respect to largest echo. When SITRANS LR250 is
located in the center of the vessel, lower this parameter to prevent multiple
echo detections. (For an illustration, see Display before Auto False Echo
Suppression and Example after Auto False Echo Suppression, page 75)
Values
Range: 0 to 100%
Default: 40%
2.2.5.6. Auto False Echo Suppression
Enables a ’learned’ TVT curve to be used in place of the default TVT curve.
Options
Off
On (Enable Auto False Echo Suppression)
"Learn" the TVT curve
Use this feature to ignore false echoes before the material echo. Set Auto
Suppression Range first. (See below for an illlustration.)
c.
Parameters
mmmmm
a.
b.
d.
Page 74
Rotate the instrument for best signal (lower false-echo amplitude).
Go to Range, and set the value (see 2.2.5.7. Range (Auto
Suppression Range) ).
Open the menu Device – Auto False Echo Suppression and select
the option to change it.
Select Learn. The device will automatically revert to On (Use
Learned TVT) after a few seconds.
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2.2.5.7. Range (Auto Suppression Range)
Defines the endpoint of the Learned TVT distance. Units are defined in sensor
units.
Values
a.
b.
Range: 0.00 to 20.00 m
Default: 1.00 m
Go to Input > TVT Setup > Range.
Determine the actual distance from the antenna reference point to
the material surface.
Subtract 0.42 m (16.5") from this distance, and enter the result.
c.
Display before Auto False Echo Suppression
Level (db)
Default
TVT
TVT
Hover Level
Window
Echo
Marker
Example after Auto False Echo Suppression
learned
TVT curve
Level (db)
liquid
level
false
echo
false
echo
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Parameters
7ML19985JE01
2.2.5.8. Shaper Mode
Adjusts the TVT curve at a specified range.
2.2.6. TVT shaper
A breakpoint on the TVT curve, normalized to 0. This parameter is for authorized
Siemens Milltronics service personnel or technicians only.
2.2.6.1. Shaper 1-9
2.2.6.2. Shaper 10-18
2.2.6.3. Shaper 19-27
2.2.6.4. Shaper 28-36
2.2.6.5. Shaper 37-40
Range: 0 to 50 dB
Values
Default: 0 dB
2.2.7. Rate
2.2.7.1. Response Rate
Sets the reaction speed of the device to measurement changes in the target range.
Options
SLOW
MED
FAST
0.1 m/minute
1.0 m/minute
10.0m/minute
Use a setting just faster than the maximum filling or emptying rate (whichever is
greater). Slower settings provide higher accuracy: faster settings allow for more level
fluctuation
2.2.7.2. Fill Rate
Defines the maximum rate at which the reported sensor value is allowed to
increase. Allows you to adjust the SITRANS LR250 response to increases in
the actual material level. Fill Rate is automatically updated whenever
Response Rate is altered.
Values
Altered by
Related parameters
Range: 0.0000 to 99999 m / min.
Factory setting: 0.1 m/min.
Response Rate
Sensor Units
Options
Meters/Minute
Slow
0.1
Medium
Fast
10
Parameters
mmmmm
Enter a value slightly greater than the maximum vessel-filling rate, in Sensor
Units per minute.
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2.2.7.3. Empty rate
Defines the maximum rate at which the reported sensor value is allowed to
decrease. Adjusts the SITRANS LR250 response to decreases in the actual
material level. Empty Rate is automatically updated whenever Response Rate
is altered.
Range: 0.0000 to 99999 m / min.
Values
Factory setting: 0.1
Altered by
Response Rate
Related
Sensor Units
Enter a value slightly greater than the vessel’s maximum emptying rate, in
Sensor Units per minute.
Options
Meters/Minute
Slow
0.1
Medium
Fast
10
2.2.8. Transducer Block (TB) Values (for diagnostic purposes)
2.2.8.1. Reading Measurement
The value for level, or volume (if volume conversion is selected). Read Only.
2.2.8.2. Material Measurement
The value for level. Read Only.
In SIMATIC PDM, open the menu View – Display, and select the tab Display
Level Value panel.
2.2.8.3. Space Measurement
The value for space. Read Only.
In SIMATIC PDM, open the menu View – Display, and select the tab Display
Space Measurement panel.
2.2.8.4. Distance Measurement
The value for distance. Read Only.
In SIMATIC PDM, open the menu View – Display, and select the tab Display
Distance Measurement panel.
2.2.8.5. Volume Measurement
The value for volume. Read Only.
In SIMATIC PDM, open the menu View – Display, and select the tab Display
Volume Measurement panel.
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2.2.8.6. Sensor Value
The value of the sensor. Read Only.
In SIMATIC PDM, open the menu View – Display, and select the tab Display
Sensor Value.
2.3. Output
2.3.1. mA Output
2.3.1.1. mA Output Value
The loop current value in mA. Read Only except if the Manual option is chosen in
mA Output function below (2.3.1.2).
User Entry only if Manual option is chosen in
2.3.1.2.
Values
Range: 3.6 mA to 22.6 mA
2.3.1.2. mA Output Function
Alters the mA output/measurement function and allows the output to be set
independently.
Options
Manual
Level
Space
Distance
Volume
Notes:
Parameters
mmmmm
• The mA Output Function is set independently from the setting in Operation. Set
Operation first and then mA Output Function. (Operation resets mA Output Function
to the same value.)
• The mA Output Function controls the primary value and the loop current for the
STIRANS LR250. Use caution when changing the mA Output function when
connected to a HART network.
• The mA Output Function also affects the secondary, tertiary and quaternary
variables in a HART network.
• mA Output Function must be set to Manual before you can modify the mA Output
Value (2.3.1.1). Remember to restore your previous setting after using mA Output
Function.
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2.3.1.3. 4 mA Setpoint
Sets the process level corresponding to the 4 mA value. 4 mA always defaults to
0, and mA Output Function determines whether this is a Level, Space, Distance, or
Volume measurement. Level and Space are measured as a percentage of the
difference between High Calibration Point and Low Calibration Point. Distance is
measured as a percentage of the Low Calibration Point.
Sensor
reference
point
Distance
Space
Level
20 mA
100%
High Calibration
Point
4 mA
0%
Space
4 mA
0%
Distance
Level
Low Calibration
Point
100%
20 mA
0%
4 mA
100%
20 mA
Range: –99999 to 99999.
Values
Related
Parameters
Default: 0.000 m (set to value corresponding to 0% as
defined by mA Output Function)
mA Output Function
Enter the reading that is to correspond to a 4 mA output. Units are defined in
Sensor units for Level, Space, or Distance. Units are unspecified for Volume.
2.3.1.4. 20 mA Setpoint
Sets the process level corresponding to the 20 mA value. 20 mA always defaults
to 100%, and mA Output Function determines whether this is a Level, Space, or
Distance measurement. Level and Space are measured as a percentage of the
difference between High Calibration Point and Low Calibration Point: Distance is
measured as a percentage of Low Calibration Point.
Values
Range: –99999 to 99999.
Default: 19.56 m (set to value corresonding to 100%
as defined by mA Output Function)
Related
Parameters
mA Output Function
Enter the reading that is to correspond to a 20 mA output. Units are defined in
Sensor units for Level, Space, or Distance. Units are unspecified for Volume.
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2.3.1.5. Minimum mA limit
Prevents the mA output from dropping below this minimum level for a
measurement value. This does not restrict the Failsafe or manual settings..
Values
Range: 3.8 to 20.5 (mA)
Default: 3.8 (mA)
2.3.1.6. Maximum mA limit
Prevents the mA output from rising above this maximum level for a
measurement value. This does not restrict the Failsafe or manual settings.
Values
Range: 3.8 to 20.5 (mA)
Default: 20.5 (mA)
2.3.1.7. 4 mA Output Trim
Calibrates the 4 mA output. The mA output of the device is pre-calibrated;
however, 4 mA Output Trim can be used to trim remote displays or inputs.
Values
Related
parameters
Range: 2.0 to 6.0 (mA)
20 mA Output Trim
Steps:
1. Set mA Output Function Manual.
2. Set mA Output Value to 4 mA.
3. Attach a calibrated meter and check the output at the terminals; record
the remote reading in mA.
4. Enter this value in 4 mA Output Trim.
5. Restore mA Output Function to previous setting.
6. Confirm that the mA output is as expected.
2.3.1.8. 20 mA Output Trim
Calibrates the 20 mA output. The mA output of the device is pre-calibrated;
however, 20 mA Output Trim can be used to trim remote displays or inputs.
Values
Related
parameters
Range: 18.0 to 24.0 (mA)
4 mA Output Trim
1. Set mA Output Function to Manual.
2. Set mA Output Value to 4 mA.
3. Attach a calibrated meter and check the output at the terminals; record
the remote reading in mA.
4. Enter this value in 20 mA Output Trim.
5. Restore mA Output Function to previous setting.
6. Confirm that the mA output is as expected.
Parameters
mmmmm
Steps:
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2.4. Failsafe
2.4.1. Failsafe Timers
Sets the time to elapse in minutes since the last valid reading, before Failsafe
State activates
Range: 0.00 to720 min.
Values
Default: 100.0
Note: The last valid reading is maintained until the Failsafe timer expires. After the
timer expires, the reading is set based on Failsafe Material Level (next page).
2.4.2. Failsafe Material Level
The material level to be reported when the Failsafe Timer expires.
HI: Use Maximum mA Limit as material level
LO: Use Minimum mA Limit as material level
Values
HOLD: Level remains at last reading
VALUE: User-selected value (defined in Failsafe Level
below)
2.4.3. Failsafe Level
Defines a user-defined level to report when the Failsafe timer expires..
Values
Range: 3.6 mA to 22.6 mA
Default: 22.6 mA
Note: Failsafe Material Level must be set to VALUE to use this value.
3. Diagnostics
3.1. Echo Profile
Allows you to request the current echo profile either via the handheld programmer,
or via SIMATIC PDM.
To request a profile via SIMATIC PDM:
a. Open the menu View – Echo Profile.
b. If desired, press Save.
c. To view the saved profile, open the menu View – Show Echo Profile.
To request a profile via the handheld programmer:
a. In PROGRAM mode, navigate to LEVEL METER >
DIAGNOSTICS > ECHO PROFILE.
b. Press Right ARROW
to request a profile.
X DIAGNOSTICS
3.2
FAULT RESET
ECHO PROFILE
MEAS. VALUES
REMAIN DEV. LIFE
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c. In the Profile screen, press Up
ARROW to select the Transmit icon,
and Right ARROW to update the
profile.
d. Press Down ARROW to select the
Exit icon, then Right ARROW to
return to previous menu.
transmit
icon
exit icon
3.14. Measured Values
3.14.1. Current Internal Temperature
Read Only. Displays (in degrees C) the current temperature on the circuit board
recorded by the internal electronics.
In SIMATIC PDM, open the menu Diagnostics, and select the tab Measured
Values panel.
3.14.2. Maximum Internal Temperature
Read Only. Displays (in degrees C) the maximum temperature recorded by the
internal electronics. The high and low values are maintained over a power cycle.
In SIMATIC PDM, open the menu Diagnostics, and select the tab Measured
Values panel.
3.14.3. Minimum Internal Temperature
Read Only. Displays (in degrees C) the minimum temperature recorded by the
internal electronics. The high and low values are maintained over a power cycle.
3.15. Remaining Device Lifetime
Note: Performing a Factory Reset will reset all the Maintenance Schedule parameters
to their factory defaults.
Use the Remaining Device/Sensor Lifetime parameters to set up schedules for
calibration and maintenance. The device will track itself based on operating hours,
instead of a calendar-based schedule, and will monitor its predicted lifetime.
The maintenance warnings and alarms are communicated to the end user through
status information. This information can be integrated into any Asset Management
system. For optimal use, we recommend that you use SIMATIC PCS7 Asset
Management Software in conjunction with SIMATIC PDM.
The device monitors the predicted lifetime of the device.
3.15.1. Total Device Operating Time
Read only. Displays the amount of time the device has been operating.
Read only. The sum of Total Expected Device Life less Total Device Operating
Time.
Parameters
mmmmm
3.15.2. Remaining Device Lifetime
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3.15.3. Maintenance Required Limit
Allows you to set the time period after which an alert will signal that maintenance
is required.
Values
Range: 0 to 20 years
Default: 0.164 years
In SIMATIC PDM, open the menu Device – Maintenance, click on Remaining
Device Lifetime.
a) Enable Alert Activation (see 3.15.5 Maintenance Alert Activation for more
detail).
b) Modify values as required. Click Write to accept the changes.
3.15.4. Maintenance Demanded Limit
Allows you to set the time period after which an alert will signal that maintenance
is demanded.
Values
Range: 0 to 20 years
Default: 0.019 years
In SIMATIC PDM, open the menu Device – Maintenance, click on Remaining
Device Lifetime.
a) Enable Alert Activation (see 3.15.5 Maintenance Alert Activation for more
detail).
b) Modify values as required. Click Write to accept the changes.
3.15.5. Maintenance Alert Activation
Select limits to be activated.
Values
Warning Limit 1 (Mainteance Required
Limit)
Warning Limit 2 (Maintenance Demanded
Limit)
* OFF
To enable or disable Maintenance Alert Activation via PDM:
a) Open the menu Device – Maintenance, click on Remaining Device Lifetime.
b) Select either or both of Enable Maintenance Required Alert and Enable
Maintenance Demanded Alert. Click Write to accept the changes.
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3.15.6. Total Expected Device Life
The device tries to predict its overall lifetime. The factory default can be reset by
the user.
Values
Range: 0 to 20 years
Default: 10.07 years
To modify the value via PDM, open the menu Device – Maintenance, click on
Remaining Device Lifetime, enter the desired value then click Write to accept it.
3.15.7. Maintenance Status
Read only. Displays the status of the Maintenance Alerts
Values
No maintenance alerts active
Maintenance Required Alert active
Maintenance Demanded Alert Active
3.15.8. Acknowledge Status
Read only. Displays the status of the Maintenance Alerts that have been
acknowledged.
Values
No maintenance alerts acknowledged
Maintenance Required Alert
acknowledged
Maintenance Demanded Alert
acknowledged
3.15.9. Acknowledge
Allows you to acknowledge either a Maintenance Required or a Maintenance
Demanded alert.
To acknowledge an alert via PDM:
a) Open the menu View – Device Status and click on the tab Maintenance.
b) In the Device Lifetime section, modify values as required. Click Write to accept
the changes.
3.16. Remaining Sensor Lifetime
The device monitors the predicted lifetime of the sensor (the components exposed
to the vessel environment).
3.16.1. Total Sensor Operating Time
Read only. Displays the amount of time the sensor has been operating.
3.16.2. Remaining Sensor Lifetime
Parameters
mmmmm
Read only. The sum of Total Expected Device Life less Total Device Operating Time.
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3.16.3. Maintenance Required Limit
Allows you to set the time period after which an alert will signal that maintenance
is required.
Values
Range: 0 to 20 years
Default: 0.164 years
To modfify the value via PDM, open the menu Device – Maintenance and click on
Remaining Device Lifetime.
a) Enable Alert Activation (see 3.2.1. Maintenance Alert Activation for more
detail).
b) Modify values as required. Click Write to accept the changes.
3.16.4. Maintenance Demanded Limit
Allows you to set the time period after which an alert will signal that maintenance
is demanded.
Values
Range: 0 to 20 years
Default: 0.019 years
To modfify the value via PDM, open the menu Device – Maintenance and click on
Remaining Device Lifetime.
a) Enable Alert Activation (see 3.2.1. Maintenance Alert Activation for more
detail).
b) Modify values as required. Click Write to accept the changes.
3.16.5. Maintenance Alert Activation
Select limits to be activated.
Values
Warning Limit 1 (Mainteance Required
Limit)
Warning Limit 2 (Maintenance Demanded
Limit)
* OFF
To enable or disable Maintenance Alert Activation via PDM:
a) Open the menu Device – Maintenance, and click on Remaining Device
Lifetime.
b) Select either or both of Enable Maintenance Required Alert and Enable
Maintenance Demanded Alert. Click Write to accept the change.
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3.16.6. Total Expected Sensor Life
The device tries to predict its overall lifetime. The factory default can be reset by
the user.
Values
Range: 0 to 20 years
Default: 10.07 years
To modify the value via PDM, open the menu Device – Maintenance, click on
Remaining Sensor Lifetime, enter the desired value then click Write.
3.16.7. Maintenance Status
Read only. Displays the status of the Maintenance Alerts
Values
No maintenance alerts active
Maintenance Required Alert active
Maintenance Demanded Alert Active
To modfify the value via PDM, open the menu Device – Maintenance and click on
Remaining Device Lifetime.
a) Enable Alert Activation (see 3.2.1. Maintenance Alert Activation for more
detail).
b) Modify values as required. Click Write to accept the changes.
3.16.8. Acknowledge Status
Read only. Displays the status of the Maintenance Alerts that have been
acknowledged.
Values
No maintenance alerts acknowledged
Maintenance Required Alert
acknowledged
Maintenance Demanded Alert
acknowledged
3.16.9. Acknowledge
Allows you to acknowledge either a Maintenance Required or a Maintenance
Demanded alert.
To acknowledge an alert via PDM:
Parameters
mmmmm
a) Open the menu View – Device Status and click on the tab Maintenance.
b) In the Device Lifetime section, modify values as required. Click Write to accept
the changes.
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4. Service
4.1. Factory Reset
Resets all parameters to their factory settings, with the following exceptions:
• the Lock and Unlock values are not reset.
• The learned TVT curve is not lost.
• In Edit Mode, only the Factory Default performs a Factory Reset. The
Idle or Done setting returns you to the previous menu.
Note: Following a Master Reset, complete reprogramming is required.
Options
Idle or Done (Return to previous menu)
Factory Default (Factory Reset Performed)
To peform a factory reset via SIMATIC PDM, open the menu Device –
Master Reset.
4.2. Powered Hours
Displays the number of hours the unit has been powered up since manufacture.
4.4. Power-on Resets
The number of power cycles that have occurred since manufacture.
4.7. Manufacture Date
The date of manufacture of the SITRANS LR250 (yy mm dd).
4.8. Software Revision
Corresponds to the software or firmware that is embedded in the SITRANS LR250.
4.9. Loader Revision
Corresponds to the software used to update the SITRANS LR250.
4.11. Hardware Revision
Corresponds to the electronics hardware of the SITRANS LR250.
4.12. Memory Test
Allows verification of the RAM, EEPROM, and Flash Memory of the SITRANS LR250.
PASS
IdLE
Values (Read only) buSY
FAIL
Fxxxx
Memory test successful
No test in progress
Test in progress
Test failed
Memory address that failed memory test.
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Parameters
Press any numeric key to activate the test. The reading will first display buSY,
then the test result text.
4.17. Service Interval
Allows for scheduling of service inspections.
4.17.1. Last Time Serviced
Read only. Time elapsed since device was last serviced
4.17.2. Maintenance Required Limit
If the time elapsed from last service is equal to or less than this limit, a Maintenance
Required status is generated.
Values
Range: 0 to 20 years
Default: 0.164 years
4.17.3. Maintenance Demanded Limit
If the time elapsed from last service is equal to or less than this limit, a Maintenance
Demaded status is generated.
Values
Range: 0 to 20 years
Default: 0.019 years
4.17.4. Alert Activation
Select limits to be activated.
Values
* Timer off
On - no limits
On - limits 1 and 2
On - limit 2
4.17.5. Service Interval
Set time between scheduled service inspections
Values
Range: 0 to 20 years
Default: 1.0 years
4.17.6. Maintenance Status
Read only. Displays the status of the Maintenance Alerts
No maintenance alerts active
Maintenance Required Alert active
Maintenance Demanded Alert Active
Parameters
mmmmm
Values
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4.17.7. Acknowledge Status
Read only. Displays the status of the Maintenance Alerts that have been
acknowledged.
Values
No maintenance alerts acknowledged
Maintenance Required Alert
acknowledged
Maintenance Demanded Alert
acknowledged
4.17.8. Acknowledge
Allows you to acknowledge either a Maintenance Required or a Maintenance
Demanded alert.
4.18. Calibration Interval
Allows for scheduling of calibrations.
4.18.1. Last Time Calibrated
Read only. Time elapsed since device was last calibrated.
4.18.2. Maintenance Required Limit
If the time elapsed from last calibration is equal to or less than this limit, a
Maintenance Required status is generated.
Values
Range: 0 to 20 years
Default: 0.164 years
4.18.3. Maintenance Demanded Limit
If the time elapsed from last calibration is equal to or less than this limit, a
Maintenance Demaded status is generated.
Values
Range: 0 to 20 years
Default: 0.019 years
4.18.4. Alert Activation
Select limits to be activated.
Values
* Timer off
On - no limits
On - limits 1 and 2
On - limit 2
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4.18.5. Total Calibration Interval
Set time between scheduled calibrations.
Range: 0 to 20 years
Default: 1.0 years
Values
4.18.6. Maintenance Status
Read only. Displays the status of the Maintenance Alerts
Values
No maintenance alerts active
Maintenance Required Alert active
Maintenance Demanded Alert Active
4.18.7. Acknowledge Status
Read only. Displays the status of the Maintenance Alerts that have been
acknowledged.
Values
No maintenance alerts acknowledged
Maintenance Required Alert
acknowledged
Maintenance Demanded Alert
acknowledged
4.18.8. Acknowledge
Allows you to acknowledge either a Maintenance Required or a Maintenance
Demanded alert.
5. Communication
5.1. Device Address
Sets the device address or poll ID on a HART network. Any address other than 0 will
cause the output current to be a fixed value, and the current will not indicate the
reading.
Range: 0 to 15
Default: 0
Values
5.2. Communication Control
Enables the read/write access to parameters via remote communications
Read Only
Options
Read Write
Parameters
mmmmm
Restricted
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6. Security
6.1. Lock
Note: Do not lose this number value.
Prevents any changes to parameters via the hand-held programmer.
Hand-held
programmer
Values
1954 (unlock value)
Off (enables local programming)
any other value
On (disables local programming)
Note: This lock only applies only to the hand-held programmer: it does not lock
through communcations. A remote master can change configuration if 5.2
Communication Control is set to allow this.
To secure the programming lock: Key in any value other than the unlock value.
Parameters are now locked and cannot be changed.
To unlock the device and enable hand-held programming changes: Key in the
unlock value. Parameters are now unlocked and may be changed.
6.2. Unlock value
Stores the value to enter in Lock (6.1) to unlock programming. If Lock is on, Unlock
Value will not display the unlocked value
Hand-held
programmer
Values
Range
Factory Setting
----
1 to 9999
1954
Display when Lock is on
Notes:
• Default setting for 6.1 (Lock) is Unlocked.
• After a new value is stored in Unlock Value (6.2), that value will be
recalled after a Factory Reset.
• Consult your Siemens Milltronics representative if you have forgotten
the unlock value.
7. Language
Selects the language to be used on the LCD.
Options
English
German
French
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Parameters
Spanish
mmmmm
Parameters
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Parameter Name/Parameter Number/Page Number
20 mA Output Trim (2.3.1.8.) on page 80
20 mA Setpoint (2.3.1.4.) on page 79
4 mA Output Trim (2.3.1.7.) on page 80
4 mA Setpoint (2.3.1.3.) on page 79
Algorithm (2.2.4.1.1.) on page 71
Antenna (2.2.1.1.) on page 63
Auto False Echo Suppression (2.2.5.6.) on page 74
Communication Control (5.2.) on page 90
Confidence (2.2.4.5.1.) on page 73
Current Internal Temperature (3.14.1.) on page 82
Damping Filter (2.2.4.3.3.) on page 73
Dimension A (2.2.3.2.) on page 69
Dimension L (2.2.3.3.) on page 69
Distance Measurement (2.2.8.4.) on page 77
Echo Lock (2.2.4.2.1.) on page 72
Echo Threshold (2.2.4.1.3.) on page 71
Empty rate (2.2.7.3.) on page 77
Factory Reset (4.1.) on page 87
Failsafe Level (2.4.3.) on page 81
Failsafe Material Level (2.4.2.) on page 81
Failsafe Timers (2.4.1.) on page 81
Far Range (2.2.1.13.) on page 66
Fill Rate (2.2.7.2.) on page 76
High Calibration Pt. (2.2.1.7.) on page 66
Language (7.) on page 91
Level Offset (2.2.1.15.) on page 67
Lock (6.1.) on page 91
Low Calibration Pt. (2.2.1.6.) on page 65
mA Output Function (2.3.1.2.) on page 78
mA Output Value (2.3.1.1.) on page 78
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A: Parameter List
Appendix A: Alphabetical Parameter
List
A: Parameter List
mmmmm
Parameter Name/Parameter Number/Page Number
Material Measurement (2.2.8.2.) on page 77
Maximum mA limit (2.3.1.6.) on page 80
Maximum Volume (2.2.3.1.) on page 69
Memory Test (4.12.) on page 87
Minimum mA limit (2.3.1.5.) on page 80
Near Range (2.2.1.12.) on page 66
Noise (2.2.4.5.) on page 73
Operation (2.2.1.5.) on page 65
Position (2.2.4.1.2.) on page 71
Powered Hours (4.2.) on page 87
Power-on Resets (4.4.) on page 87
Propagation Factor (2.2.1.14.) on page 66
Range (Auto Suppression Range) (2.2.5.7.) on page 75
Reading Measurement (2.2.8.1.) on page 77
Response Rate (2.2.7.1.) on page 76
Sampling up (2.2.4.2.4.) on page 72/ Sampling down1 (2.2.4.2.5.) on page 72
Sensor Units (2.2.1.4.) on page 64
Software Revision (4.8.) on page 87
Space Measurement (2.2.8.3.) on page 77
Strength (2.2.4.5.2.) on page 73
TVT Hover Level (2.2.5.1.) on page 74
Unlock value (6.2.) on page 91
Vessel Shape (2.2.2.1.) on page 67
Volume Breakpoints (2.2.3.) on page 69
Volume Breakpoints (2.2.3.) on page 69
Volume Measurement (2.2.8.5.) on page 77
Window1 (2.2.4.2.6.) on page 72
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Appendix B: Programming Chart
Parameter Number and Name
20 mA Output Trim (2.3.1.8.)
Value
20 mA Setpoint (2.3.1.4.)
4 mA Output Trim (2.3.1.7.)
4 mA Setpoint (2.3.1.3.)
Algorithm (2.2.4.1.1.)
Auto False Echo Suppression (2.2.5.6.)
Communication Control (5.2.)
Confidence (2.2.4.5.1.)
Current Internal Temperature (3.14.1.)
Damping Filter (2.2.4.3.3.)
Dimension L (2.2.3.3.)
Distance Measurement (2.2.8.4.)
Echo Lock (2.2.4.2.1.)
Echo Threshold (2.2.4.1.3.)
Empty rate (2.2.7.3.)
Factory Reset (4.1.)
Failsafe Level (2.4.3.)
Failsafe Material Level (2.4.2.)
Failsafe Timers (2.4.1.)
Far Range (2.2.1.13.)
Fill Rate (2.2.7.2.)
High Calibration Pt. (2.2.1.7.)
Language (7.)
Level Offset (2.2.1.15.)
Lock (6.1.)
Low Calibration Pt. (2.2.1.6.)
mA Output Function (2.3.1.2.)
mA Output Value (2.3.1.1.)
Material Measurement (2.2.8.2.)
Maximum mA limit (2.3.1.6.)
Maximum Volume (2.2.3.1.)
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B: Programming Chart
Antenna (2.2.1.1.)
Parameter Number and Name (Continued)
Memory Test (4.12.)
Value
Minimum mA limit (2.3.1.5.)
Near Range (2.2.1.12.)
Noise (2.2.4.5.)
Operation (2.2.1.5.)
Position (2.2.4.1.2.)
Power-on Resets (4.4.)
B: Programming Chart
mmmmm
Powered Hours (4.2.)
Propagation Factor (2.2.1.14.)
Range (Auto Suppression Range) (2.2.5.7.)
Reading Measurement (2.2.8.1.)
Response Rate (2.2.7.1.)
Sampling up (2.2.4.2.4.)/ Sampling down1 (2.2.4.2.5.)
Sensor Units (2.2.1.4.)
Software Revision (4.8.)
Space Measurement (2.2.8.3.)
Strength (2.2.4.5.2.)
TVT Hover Level (2.2.5.1.)
Unlock value (6.2.)
Vessel Shape (2.2.2.1.)
Volume Breakpoints (2.2.3.)
Volume Measurement (2.2.8.5.)
Window1 (2.2.4.2.6.)
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Appendix C: Troubleshooting
Communication Troubleshooting
Generally:
1.
Check the following:
•
•
•
There is power at the instrument
The LCD shows the relevant data
The device can be programmed using the hand programmer
2.
Verify that the wiring connections are correct.
3.
If you continue to experience problems, go to our website at:
www.siemens.com/processautomation, and check the FAQs for SITRANS LR250, or
contact your local Siemens Milltronics representative.
Specifically:
•
Some parameters can only be changed when the device is not scanning. Try
putting the device in PROGRAM mode using the operating mode function.
•
Try setting the parameter from the keypad. (First make sure that the lock
parameter [6.1] is set to the unlock value.)
•
The communications control parameter 5.2 must be set to 1 to allow you to write
parameters to SITRANS LR250.
If you see unanticipated displays, for example:
•
•
•
PROGRAM mode displayed instead of Measurement mode
the wrong parameter displayed in response to a command
a parameter displayed in response to no command
make sure no infrared-capable device is close to SITRANS LR250. Any device with
infrared capabilities (laptops, cell phones, PDAs) can cause interference which
simulates a command to the SITRANS LR250, potentially causing it to switch modes
or to change a parameter.
3.
If the operation is erratic, make sure the Hand Programmer is not being used at the
same time as SIMATIC PDM.
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2.
If you try to set a SITRANS LR250 parameter via remote communications, but the
parameter remains unchanged:
C: Troubleshooting
1.
General Fault Codes
Notes:
• Some faults cause the device to go to Failsafe mode (Fault 52). These are indicated with
an asterisk (*).
Fault Codes
Fault Codes
C: Troubleshooting
mmmmm
Code
Meaning
Corrective Action
S:0
* The device was unable to get a
measurement within the Failsafe Timer
period. Possible causes: faulty
installation, antenna buildup, foaming/
other adverse process conditions, invalid
calibration range.
Ensure installation details are correct.
Ensure no antenna buildup. Adjust
process conditions to minimize foam or
other adverse conditions. Correct
range calibration. If fault persists,
contact your local Siemens
representative.
S:2
* The device is operating in a low power
condition that is outside its operating
range. As a result, a valid measurement
has not been taken for the failsafe timer
period, and the device will be put into
failsafe mode.
Correct the power supply (resistance
or voltage).
S:3
Device is nearing its lifetime limit
according to the value set in
Maintenance Required Limit.
Replacement is recommended.
S:4
Device is nearing its lifetime limit
according to the value set in
Maintenance Demanded Limit.
Replacement is recommended.
S:6
Sensor is nearing its lifetime limit
according to the value set in
Maintenance Required Limit.
Replacement is recommended.
S:7
Sensor is nearing its lifetime limit
according to the value set in
Maintenance Demanded Limit.
Replacement is recommended.
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Fault Codes (cont’d)
Meaning
Code
Corrective Action
S:8
Service interval as defined in
Perform service.
Maintenance Required Limit has expired.
S:9
Service interval as defined in
Maintenance Demanded Limit has
expired.
Perform service.
S:11
Internal temperature sensor failure.
Repair required: contact your local
Siemens representative.
S:12
Internal temperature of device has
exceeded specifications: it is operating
outside its temperature range.
Relocate device and/or lower process
temperature enough to cool device.
Inspect for heat-related damage and
contact your local Siemens
representative if repair is required.
S:17
Calibration interval as defined in
Perform calibration.
Maintenance Required Limit has expired.
S:18
Calibration interval as defined in
Maintenance Demanded Limit has
expired.
Perform calibration.
S:29 * EEPROM damaged.
Repair required: contact your local
Siemens representative.
S:31 * Flash error.
Repair required: contact your local
Siemens representative.
S:33 * Factory calibration for the internal
temperature sensor has been lost.
Repair required: contact your local
Siemens representative.
S:34 * Factory calibration for the device has
been lost.
Repair required: contact your local
Siemens representative.
S:35 * Factory calibration for the device has
been lost.
Repair required: contact your local
Siemens representative.
S:36 * Unable to start microwave module.
Reset power. If error persists, contact
your local Siemens representative.
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Repair required: contact your local
Siemens representative.
C: Troubleshooting
S:28 * Internal device failure caused by a RAM
memory error.
Code
Fault Codes (cont’d)
Meaning
Corrective Action
S:37 * Measurement hardware problem.
Reset power. If error persists, contact
your local Siemens representative.
S:38 * Failure in the device electronics.
Reset power. If fault persists, contact
your local Siemens representative:
repair required.
S:43 * Factory calibration for the radar receiver Repair required: contact your local
has been lost.
Siemens representative.
C: Troubleshooting
mmmmm
S:44 * Factory calibration for the echo slope has Repair required: contact your local
been lost.
Siemens representative.
S:45 * No valid boot program detected:
firmware corrupt.
Repair required: contact your local
Siemens representative.
S:48 * User configuration is invalid. One or more
of parameters: Low Calibration Point,
High Calibration Point, Volume
breakpoints, and/or Auto False-Echo
Suppression, are set to invalid values.
Reconfigure the unit. Ensure the
difference between High Calibration
Point and Low Calibration Point is not
less than zero; check the breakpoints
(only required if 2.2.3. Volume
Breakpoints is not set to 0).
S:49 * EEPROM corrupt.
Repair required: contact your local
Siemens representative.
S:50 * EEPROM corrupt.
Repair required: contact your local
Siemens representative.
S:51 * EEPROM corrupt.
Repair required: contact your local
Siemens representative.
S:52
For 3) and 4) Correct configuration;
ensure installation is correct; no
antenna buildup; adjust process
conditions to minimize foaming/other
adverse conditions; correct calibration
range. If fault persists, or for 1) and 2),
contact your local Siemens
representative.
Failsafe is activated. Possible causes: 1)
hardware failure; 2) memory failure;
3)Fault 48; 4) failsafe timer expired–
possible causes: faulty installation,
antenna buildup, foaming/other adverse
process conditions, invalid calibration
range.
S:53 * Configuration lost: one or more
parameter settings have been lost. This
may occur after a firmware upgrade
causes user parameters to be reset.
Page 100
Restore user parameters using
SIMATIC PDM.
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Operation Troubleshooting
Operating symptoms, probable causes, and resolutions.
Symptom
Cause
Action
• check specifications
• check 2.2.1.6. Low Calibration
Display flashes
LOE and status
symbol shows
level or target is out of range
Display flashes
LOE and status
symbol shows
material build-up on antenna
• clean the antenna
• re-locate SITRANS LR250
Display flashes
LOE and status
symbol shows
location or aiming:
• poor installation
• flange not level
• check to ensure nozzle is
vertical
• use2.2.5.6. Auto False Echo
Suppression and check 2.2.5.7.
Pt.
• increase 2.2.4.5.1. Confidence
Display flashes
LOE and status
symbol shows
7ML19985JE01
antenna malfunction:
• temperature too high
• physical damage
• excessive foam
• multiple echoes
• check 3.14.1. Current Internal
Temperature
• use foam deflector or stilling
well
• relocate
• use a defoamer
• set 2.2.4.1.1. Algorithm to F
(First echo)
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protrudes from end of nozzle.
C: Troubleshooting
Range (Auto Suppression
Range) to ensure nozzle
Symptom
Cause
Action (cont’d)
Reading does
not change, but
the level does
SITRANS LR250 processing
wrong echo, i.e. vessel wall, or
structural member
• re-locate SITRANS LR250
• check nozzle for internal burrs
or welds
• rotate instrument 90°
• use 2.2.5.6. Auto False Echo
Suppression and 2.2.5.7.
Range (Auto Suppression
Range)
Measurement is
consistently off
by a constant
amount
• setting for 2.2.1.6. Low
Calibration Pt. not correct
• setting for 2.2.1.15. Level
Offset not correct
• check distance from flange
face to 2.2.1.6. Low Calibration
power error
• check nameplate rating
against voltage supply
• check power wiring or source
too much load resistance
• change barrier type, or
• remove something from the
loop, or
• increase supply voltage
C: Troubleshooting
mmmmm
Screen blank
echo confidence weak
Pt.
• check 2.2.1.15. Level Offset or
device tag
• refer to2.2.4.5.1. Confidence
• use 2.2.5.6. Auto False Echo
Suppression and 2.2.5.7.
Range (Auto Suppression
Range)
• use foam deflector or stilling
well
Reading erratic
liquid surface vortexed
• decrease 2.2.7.1. Response
Rate
• relocate instrument to side
pipe
• increase confidence threshold
in 2.2.4.1.3. Echo Threshold
Reading
response slow
Page 102
material filling
• re-locate SITRANS LR250
2.2.7.1. Response Rate setting
• increase measurement
response if possible
incorrect
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7ML19985JE01
Symptom
Cause
Reads correctly
but occasionally
reads high
when vessel is
not full
• detecting close range echo
• build up near top of vessel or
nozzle
• nozzle problem
• clean the antenna
• use 2.2.5.6. Auto False Echo
Suppression and 2.2.5.7.
• material is within near
blanking zone
• vessel near empty and low
εr material
• multiple echoes processed
• decrease 2.2.1.12. Near Range
(minimum value depends on
antenna type)
• raise SITRANS LR250
• ensure2.2.4.1.1. Algorithm is set
to F (First echo)
• nozzle too narrow for length
• see Rod Extension
Requirements on page 114.
Level reading
lower than
material level
Action (cont’d)
Range (Auto Suppression
Range)
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C: Troubleshooting
7ML19985JE01
Appendix D: Maintenance
SITRANS LR250 requires no maintenance or cleaning under normal operating conditions.
Under severe operating conditions, the horn antenna may require periodic cleaning. If
cleaning becomes necessary:
• Note the antenna material and the process medium, and select a cleaning
solution that will not react adversely with either.
• Remove the instrument from service and wipe the antenna clean using a cloth
and suitable cleaning solution.
Unit Repair and Excluded Liability
All changes and repairs must be done by qualified personnel, and applicable safety
regulations must be followed. Please note the following:
The user is responsible for all changes and repairs made to the device.
All new components must be provided by Siemens Milltronics Process Instruments Inc.
Restrict repair to faulty components only.
Do not re-use faulty components.
D: Maintenance
mmmmm
•
•
•
•
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Appendix E: Technical Reference
Principles of Operation
SITRANS LR250 is a sophisticated radar instrument that uses advanced microwave pulse
technology1 to provide non-contacting continuous level measurement in liquids or
slurries. Radar level measurement uses the time of flight principle to determine distance
to a material surface. The device transmits a signal and waits for the return echo. The
transit time is directly proportional to the distance from the material.
Pulse radar uses polarized electromagnetic waves. Microwave pulses are emitted from
the antenna at a fixed repetition rate, and reflect off the interface between two materials
with different dielectric constants (the atmosphere and the material being monitored).
The echo is detected by a receiver, and the transit time is used to calculate level.
Electromagnetic wave propagation is virtually unaffected by temperature or pressure
changes, or by changes in the vapor levels inside a vessel. Electromagnetic waves are
not attenuated by dust.
SITRANS LR250 consists of an enclosed electronic circuit coupled to an antenna and
process connection. The electronic component generates a radar signal (26 GHz) that is
directed to the horn.
The signal is emitted from the horn, and the reflected echoes are digitally converted to an
echo profile. The profile is analyzed to determine the distance from the material surface
to the reference point on the instrument. This distance is used as a basis for the display of
material level and mA output.
Echo Processing
The three echo processing parameters, Response Rate, Near Range, and Position, are
set to default values shown in the table below. Further information can be found in
Parameter Reference on the pages shown.
Echo Processing
Parameters
2.2.1.3. Response Rate
2.2.1.12. Near Range
2.2.4.1.2. Position
Default
values
Fast
Hybrid
Description
page
measurement response to level change 64
user-defined blanking
66
Defines where on the echo the distance 71
measurement is determined.
The true echo is selected based on the algorithm selected in 2.2.4.1. Echo select. Options
are Largest Echo, best of Largest and First, or First.
The microwave output level is significantly less than that emitted from cellular phones.
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1.
E: Technical Reference
The device characterizes all echoes that rise above the TVT (Time Varying Threshold) as
potential good echoes. Each peak is assigned a rating based on its strength, area, height
above the TVT, amongst other characteristics.
The echo location algorithm calculates the precise time of flight of that echo, and
calculates the range using the calibrated propagation velocity (adjusted using a
propagation factor, if necessary).
Measurement Response
The measurement response (response rate) limits the maximum rate at which the
display and output respond to changes in the measurement. Once the real process fill/
empty rate (m/s) is established, a response rate can be selected that is slightly higher
than the application rate. The response rate automatically adjusts the filters that affect
the output response rate.
There are three preset options: slow, medium, and fast.
2.2.7.1.
Response
Rate
Slow
2.2.7.2. Fill
Rate/2.2.7.3.
Empty rate
0.1 m/min
2.2.4.2.1.
Echo Lock
2.4.1. Failsafe
Timers (time in
minutes)
100
Typical
Update Time
###
Medium
1 m/min
10
###
Fast
10 m/min
1 sec.
The measurement response limits the maximum rate at which the display and analog
output respond to changes in measurement. Response Rate 2.2.7.1 should be set to a
measurement response just faster than the maximum filling or emptying rate (whichever
is greater).
When the echoes are received, the relevant echo algorithm (2.2.4.1.1) is applied to
determine the true material echo.
Typical Receiver Signal
End of
Transmit
2.2.1.11
Near Range
Empty
Level
Range Extension
(2.2.1.12) as %
E: Technical Reference
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Difference between High Calibration Point and Low
Calibration Point
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Echo Lock
When the echoes are received, the relevant echo algorithm is applied to determine the
true material echo. If the selected echo is within the window, the window is then
centered about the echo. Otherwise the window widens with each successive shot until
the selected echo is within the window, which then returns to its normal width.
Echo Lock selects the measurement verification process:
Values
•
•
•
Off
Maximum Verification
Material Agitator
Total Lock
When Echo Lock is Off, SITRANS LR 250 responds immediately to a new
measurement (within the restrictions set by the Maximum Fill / Empty Rate).
However, measurement reliability is affected.
When Maximum Verification or Material Agitator is selected, a new measurement
outside the Echo Lock Window must meet the sampling criteria.
When Total Lock is selected, Echo Lock Window is pre-set to 0, and the window is
automatically calculated after each measurement.
Loss of Echo (LOE)
A loss of echo (LOE) occurs when the calculated measurement is judged to be unreliable
because the echo confidence value has dropped below the echo confidence threshold.
If the LOE condition persists beyond the time limit set in 2.4.1. Failsafe Timers the LCD
displays the Service Required icon, a wrench accompanied by three dots
text region displays the fault code S: 0 and the text LOE.
and the
Fail-safe Mode
Fail-safe Timers
2.4.1. Failsafe Timers determines the time to elapse after the last valid reading before a
Fail-safe state is activated. 2.4.2. Failsafe Material Level determines the level to be
reported when the Fail-safe timer expires. Upon receiving a reliable echo, the loss of
echo condition is aborted, the Service Required icon and error message are cleared, and
the reading and mA output return to the current level.
Fail-safe value
Fail-safe Material Level
7ML19985JE01
Use Maximum mA Limit as material level
Use Minimum mA Limit as material level
Level remains at last reading
User-selected value
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HI
LO
HOLD
VALUE
E: Technical Reference
When the 2.4.1. Failsafe Timers expires, the material level to be reported is determined by
2.4.2. Failsafe Material Level.
Far Range (Range Extension)
In applications where the base of the vessel is conical or parabolic, a reliable echo may
be available below the vessel empty distance, due to an indirect reflection path.
Increasing the range extension to 30% or 40% can provide stable empty vessel readings.
False-Echo Suppression
False echoes can appear during the receive cycle. They are often created by internal
impediments like a ladder rung, and are usually indicated by an incorrect high level
reading.
Near Range (Blanking)
2.2.1.12. Near Range programs SITRANS LR250 to ignore the zone in front of the antenna.
The default blanking distance is 0.50 mm from end of horn antenna..
Near Range allows you to increase the blanking value from its factory setting. But 2.2.5.6.
Auto False Echo Suppression is generally recommended in preference to extending the
blanking distance from factory values.
Auto False-Echo Suppression
The TVT adjustment parameters allow you to set a TVT (Time Varying Threshold) curve, so
that SITRANS LR250 will ignore false echoes.
The default TVT curve hovers above the echo profile, and effectively screens out small
false echoes. But if an obstruction is causing a large echo before the material level echo,
that echo will rise above the default TVT curve. You can use Auto False-Echo Suppression
to filter it out. If possible, rotate the instrument before using Auto False-Echo
Suppression, to lower the amplitude of false echoes.
When you set 2.2.5.6 to Learn, the instrument learns the echo profile at that moment1.
Then it uses the learned profile instead of the default TVT curve, for the distance set in
2.2.5.7. The learned profile (Learned TVT curve) follows the echo profile, so that no large
false echoes rise above the learned TVT curve. From the end of the Auto False-Echo
Suppression Distance, the default TVT curve is used. The material level echo rises above
this, and is selected as the true echo.
E: Technical Reference
mmmmm
For examples, see Display before Auto False Echo Suppression on page 109 andExample
after Auto False Echo Suppression on page 109.
1.
Set 2.2.5.6 to ’Learn’ when the material level is substantially lower than process full level (ideally
when the tank is empty or almost empty).
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Display before Auto False Echo Suppression
Default
TVT
Level (db)
TVT
Hover Level
Window
Echo
Marker
Example after Auto False Echo Suppression
learned
TVT curve
Level (db)
liquid
level
false
echo
false
echo
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E: Technical Reference
7ML19985JE01
mA Output
The mA output is proportional to the level, in the range 4 to 20 mA. Generally, the output is
set so that the output for 0% is 4 mA, and the output for 100% is 20 mA. 0 and 100% are
percentages of the full-scale reading (m, cm, mm, ft, in).
Sensor
reference
point
High Calibration
Point
Distance
Space
Level
20 mA
100%
4 mA
0%
Space
4 mA
0%
Distance
Level
Low Calibration
Point
0%
4 mA
100%
20 mA
100%
20 mA
When SITRANS LR250 is put into PROGRAM mode it stops responding to the process. It
stores the most recent measurement, and holds the associated readings and mA signal
output. The instrument reverts to the parameter last addressed during the previous
program session.
When the instrument is returned to Measurement mode, the transceiver resumes
operation. The reading and mA output default to the last measurement taken. The reading
and associated outputs migrate to the current process level at a rate controlled by the
response rate (2.2.7.1).
E: Technical Reference
mmmmm
If SITRANS LR250 is left in PROGRAM mode for 10 minutes without input, it automatically
reverts to Measurement mode.
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Maximum Process Temperature Chart
Note: The chart below is for guidance only:
Ambient Temperature (oC)
Maximum Flange and Process Temperatures versus Allowable Ambient for
Polypropylene Rod or Flange Adapter versions of SITRANS LR250
Graphic to be revised if required.
polypropylene
rod
temperature
(no flange)
flange
temperature
process
temperature
Process Flange Surface Temperature (oC)
•
•
The chart does not represent every
possible process connection
arrangement. For example, it will
NOT apply if you are mounting
SITRANS LR250 on a nozzle greater
than 8” nominal, or directly on a
metallic vessel surface.
The chart does not take into
consideration heating from direct
sunshine exposure.
internal
enclosure
temperature
ambient
temperature
process
temperature
Where the chart does not apply, please use your own judgement regarding the use of
SITRANS LR250. Parameter 3.14.1 is required to monitor the Internal Temperature. It gives you an
excellent indication of how reliably the product will perform thermally when installed on your
process vessel.
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WARNING: Internal temperature must not exceed 80 °C (176 °F).
E: Technical Reference
3.14.1 also allows you to decide whether or not attention should be focussed on
redesigning the installation. For example, if the internal temperature exceeds the
maximum allowable limit, a sun shield or a longer nozzle may be required. Engineering will
use this temperature reading (3.14.1) to gauge the extent of change required to the
installation in order to provide a reliable thermal-operating zone for the SITRANS LR250.
Process Pressure/Temperature derating
curves1
Notes:
• These configurations are subject to revision: other options may be added.
• Process configuration numbers are not final.
• The Process Device Tag shall remain with the process pressure boundary
assembly1. In the event the instrument package is replaced, the Process Device Tag
shall be transferred to the replacement unit.
• SITRANS LR 250 units are hydrostatically tested, meeting or exceeding the
requirements of the ASME Boiler and Pressure Vessel Code and the European
Pressure Equipment Directive.
• The serial numbers stamped in each process connection body, (flange, threaded, or
sanitary), provide a unique identification number indicating date of manufacture.
Example: MMDDYY – XXX (where MM = month, DD = day, YY = year, and
XXX= sequential unit produced
Further markings (space permitting) indicate flange configuration, size, pressure
class, material, and material heat code.
•
•
•
•
E: Technical Reference
mmmmm
•
1.
Page 112
WARNINGS:
Never attempt to loosen, remove or disassemble process connection
or instrument housing while vessel contents are under pressure.
This product is designated as a Pressure Accessory per Directive 97/ 23 / EC
and is not intended for use as a safety device.
Materials of construction are chosen based on their chemical
compatibility (or inertness) for general purposes. For exposure to
specific environments, check with chemical compatibility charts
before installing.
The user is responsible for the selection of bolting and gasket
materials which will fall within the limits of the flange and its intended
use and which are suitable for the service conditions.
Improper installation may result in loss of process pressure and/or
release of process fluids and/or gases.
The process pressure boundary assembly comprises the components that act as a barrier
against pressure loss from the process vessel: that is, the combination of process connection
body and emitter, but normally excluding the electrical enclosure.
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7ML19985JE01
Horn Antenna or Wave Guide – ANSI Hole Pattern, 150#1
pressure (bar, gauge)
Process Connection Series:
•
51242 to 51???, and 512xx to
512xx, with 25546 and 255xx
series flange.
•
Ensure your instrument has
the process identification tag
showing one of this series, and
25546 or 255xx stamped on
flange.
•
Reference drawing number is
shown on the process device
tag. You can find this drawing
on our website:
www.siemens.com/
processautomation on the
LR 250 product page, under
Process Connection
Specifications.
process temperature (°C)
3”
4”
6”
8”
Horn Antenna or Wave Guide DN Hole Pattern, PN162
18.0
16.0
pressure (bar, gauge)
14.0
12.0
10.0
DETAILS TO BE UPDATED
8.0
6.0
4.0
2.0
-50
50
100
150
process temperature (°C)
80 mm
100 mm
150 mm
200 mm
200
Process Connection Series:
• 51242 to ????, and 512xx to
51512xx with 25547 and 255xx
series flange.
• Ensure your instrument has
the process identification tag
showing one of this series,
and 25547 or 255xx stamped
on flange.
• Reference drawing number is
shown on the process device
tag. You can find this drawing
on our website:
www.siemens.com/
processautomation on the
LR 250 product page, under
Process Connection
Specifications.
Customer to provide adequate bolting and flat-faced gasket to retain vessel pressure and provide sufficient sealing.
2.
Customer to provide adequate bolting and flat-faced gasket to retain vessel pressure and provide sufficient sealing.
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mmmmm
1.
E: Technical Reference
WARNING: Never attempt to loosen, remove or disassemble process
connection or instrument housing while vessel contents are under
pressure.
Typical Connection Drawing
Note: Loop voltage is the voltage at the terminals of the power supply (not the
voltage at the terminals of the device).
loop resistance
RL
power
supply
loop voltage
VL
LR250
loop current IL
Allowable operating area of SITRANS LR250
Curve 1 (General Purpose, Intrinsically Safe, Non-incendive)
Loop Voltage versus Loop Resistance
Power Supply Requirements
1000
(30.0v,845 ohms)
900
800
Loop Resistance - RL
Appendix F: Loop Power
mmmmm
Appendix F: Loop power
RL=44.6*VL - 493.4
700
600
500
400
(17.8v, 300 ohms)
300
RL=272.7*VL - 4554.1
200
ALLOWABLE OPERATING
AREA
100
10.00
(16.7v, 0 ohms)
15.00
20.00
25.00
30.00
Loop Voltage-VL
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Loop Voltage versus Loop Resistance
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Startup Curve
Appendix F: Loop Power
Curve 2 (Flameproof, Increased Safety, Explosion-proof)
Appendix G: Special Applications
This more complex SITRANS LR250 application example can be used for setup
references.
G: Special Applications
mmmmm
Application Example: Stillpipe
This is used for products with an εr of less than 3, or if extremely turbulent or vortex
conditions exist. This mounting arrangement can also be used to provide optimum signal
conditions on foaming materials.
Notes:
• For εr < 3, the lower 400 mm of vessel level may not be measurable.
• 2.2.1.12. Near Range (Blanking) will be set at the factory. Check the process device
tag for specific values.
• Suitable pipe diameters are 50 mm (2”) to 100 mm (4”): See the chart on page 108 for
typical 2.2.1.14. Propagation Factor values.
This application is to obtain a level measurement and corresponding 4 to 20 mA output
proportional to the oil level in a fuel storage vessel.
• The reference point of SITRANS LR250 is
5 m (16.5 ft) from the vessel bottom.
• Low Calibration Pt. is 0 m/ft (bottom of
tank).
• High Calibration Pt. is 4.5 m (14.74 ft) from
the bottom.
• The stillpipe inside diameter is 100 mm (4").
• The maximum rate of filling or emptying is
about 0.1 m (4")/min.
vent slots
5m
P006
4.5 m
P007
Parameter
2.2.1.5. Operation
= level
2.2.7.1. Response Rate
= 1 m/minute
2.2.1.4. Sensor Units
= meters
2.2.1.6. Low Calibration Pt.
=5m
2.2.1.7. High Calibration Pt.
4.5
= 4.5 m
2.2.1.14. Propagation Factor1
0.998
= 100 mm pipe I.D.
2.2.5.7. Range (Auto Suppression Range)
2.2.5.6. Auto False Echo
Suppression
distance to material – 0.42 m
1.
Page 116
Enter
enable false-echo
suppression
See under 2.2.1.14. Propagation Factor on page 66 for atable showing suggested values.
SITRANS LR250 (HART) – INSTRUCTION MANUAL
7ML19985JE01
Appendix H: HART Communications
Highway Addressable Remote Transducer, HART, is an industrial protocol that is
superimposed on the 4-20 mA signal. It is an open standard, and full details about HART
can be obtained from the HART Communication Foundation at www.hartcomm.org
SITRANS LR250 Rev 3 can be configured over the HART network using either the HART
Communicator 3751 by Fisher-Rosemount, or a software package. The recommended
software package is the SIMATIC Process Device Manager (PDM) by Siemens.
SIMATIC PDM
This software package is designed to permit easy configuration, monitoring, and
troubleshooting of HART devices. The HART DD for SITRANS LR250 was written with
SIMATIC PDM in mind and has been extensively tested with this software.
For more information, see Operating SITRANS LR250 via SIMATIC PDM on page 52.
1.
Versions of SITRANS LR250 earlier than Rev. 3 can be configured using the HART
Communicator 275.
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In order to configure a HART device, the configurator must have the HART Device
Description for the instrument in question. HART DDs are controlled by the HART
Communication Foundation. Please check with the HART Communication Foundation for
the availability of the HART DD for SITRANS LR250. Older versions of the library will have
to be updated in order to use all the features of SITRANS LR250.
H: HART Communications
HART Device Description (DD)
HART Communicator 375
Notes:
• HART Communicator 375 is supported by SITRANS LR250 HART Rev. 3.03. The menu
structure is aligned with the menu structure of SIMATIC PDM.
Chart 1
On Line
Device Setup
1. PV
2. Level
3. % Range
4. AO
5. Device Setup
6. Refresh
1. Master Reset
2. Quick Setup
3. Display
4. Diagnostics
5. PV Exchange
6. Device Data
7. Rate
8. Review
Quick Setup
1. Units
2. Empty
3. Span
4. Language
5. Operation
6. Response
7. Sensor
Display
H: HART Communications
mmmmm
1. Material
2. Space
3. Distance
4. Volume
5. Error Signal
Diagnostics
Wear
1. Wear
2. Status
3. Self Test
4. Range Calibration
5. Trim Analog Output
6. Simulate AO
1. Run Time
2. Number
3. Max Temp
4. Int Temp
Status
1. Sensor Status
1. Electronics Status
2. Software Status
3. Application Status
PV Exchange
Self Test
1. Read AnalogOut
2. Select AnalogOut
1. Self Test
Range Calibration
1. Offset
2. Prop Factor
Trim Analog Output
1. D/A Trim
2. Scaled D/A
Device Data
1. Units
2. Basic Setup
3. Detailed Setup
4. Output Param
5. Device Information
6. HART Information
Rate
Basic Setup (See Chart 2)
Detailed Setup (See Chart 3)
1. Max Fill
2. Max Empty
Output Parameter (See Chart 4)
Review
1. Tag
2. Descriptor
3. Message
4. Final Asmbly Num
5. Last Config
6. Manufacturer Data
1. Lock
2. Operation
3. Response
4. Sensor
5. Units
6. Empty
Device information
HART information
1. Manufacturer
2. Model
3. HART Dev. I.D.
4. Universal Rev.
5. Fld. Dev. Rev.
6. Software Rev.
7. Hardware Rev.
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Chart 2
Basic Setup
Standard Setup
1. Master Reset
2. Standard Setup
3. Quick Setup
4. Volume
5. Failsafe
1. URV
2. LRV
3. Damping
Quick Setup
1. Units
2. Empty
3. Span
4. Language
5. Operation
6. Response
7. Antenna
Volume
1. Shape
2. Max Vol
3. Dimension A
4. Dimension L
5. Bk LevVol Gr
Failsafe
1. mA Function
2. FS Timer
3. FS Default Measurement
4. FS Advance
5. FS Level val
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SITRANS LR250 (HART) – INSTRUCTION MANUAL
H: HART Communications
7ML19985JE01
1. Bk Lev1Val
2. Bk Vol1Val
3. Bk Lev2Val
4. Bk Vol2Val
5. Bk Lev3Val
6. Bk Vol3Val
7. Bk Lev4Val
8. Bk Vol4Val
9. Bk Lev5Val
10. Bk Vol5Val
11. Bk Lev6Val
12. Bk Vol6Val
13. Bk Lev7Val
14. Bk Vol7Val
15. Bk Lev8Val
16. Bk Vol8Val
17. Bk Lev9Val
18. Bk Vol9Val
19. Bk Lev10Val
20. Bk Vol10Val
21. Bk Lev11Val
22. Bk Vol11Val
23. Bk Lev12Val
24. Bk Vol12Val
25. Bk Lev13Val
26. Bk Vol13Val
27. Bk Lev14Val
28. Bk Vol14Val
29. Bk Lev15Val
30. Bk Vol15Val
31. Bk Lev16Val
32. Bk Vol16Val
33. Bk Lev17Val
34. Bk Vol17Val
35. Bk Lev18Val
36. Bk Vol18Val
37. Bk Lev19Val
38. Bk Vol19Val
39. Bk Lev20Val
40. Bk Vol20Val
41. Bk Lev21Val
42. Bk Vol21Val
43. Bk Lev22Val
44. Bk Vol22Val
45. Bk Lev23Val
46. Bk Vol23Val
47. Bk Lev24Val
48. Bk Vol24Val
49. Bk Lev25Val
50. Bk Vol25Val
51. Bk Lev26Val
52. Bk Vol26Val
53. Bk Lev27Val
54. Bk Vol27Val
55. Bk Lev28Val
56. Bk Vol28Val
57. Bk Lev29Val
58. Bk Vol29Val
59. Bk Lev30Val
60. Bk Vol30Val
61. Bk Lev31Val
62. Bk Vol31Val
63. Bk Lev32Val
64. Bk Vol32Val
Chart 3
Detailed Setup
1. Echo Lock
2. Echo Select
3. TVT Setup
4. Echo Quality
Echo Lock
1. Echo Lock
2. Sampling Up
3. Sampling Down
4. Window
Echo Select
1. Algorithm
2. Blanking
3. Rng Ext
TVT Setup
1. Auto TVT
2. Range
3. Hover
Echo Quality
H: HART Communications
mmmmm
1. Confidence
2. Strength
3. Noise Average
4. Noise Peak
5. Threshold Long
Chart 4
Output parameter
Analog Ouput
1. Analog Output
2. Apply Values
3. Local Display.
4. HART Output
1. Read AnalogOut
2. mA Function
3. FS Default Measurement
4. Min mA
5. Max mA
6. Low Setpoint
7. High Setpoint
Local Display
1. Write Protect
2. Lock
3. Write Protect
4. Unlock Value
HART Output
1. Poll Addr
2. Num Req Preams
3. Num Resp Preams
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Supported HART Commands:
SITRANS LR 250 conforms to HART rev. 5 and supports the following:
Universal Commands
0, 1, 2, 3, 6, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22
Common Practice Commands
33, 34, 35, 36, 37, 38, 40,41, 42, 44, 45, 46, 48, 50, 51, 53, 54, 59
Universal and Common Practice Commands
For details on the Universal and Common Practice Commands, please contact the HART
Communication Foundation.
Device Specific Commands
For a document containing the Device Specific Commands, please contact Siemens
Milltronics at techpubs.smpi@siemens.com.
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H: HART Communications
Device Specific Commands
Command 150 Read Echo Summary
Command 151 Read Echo Data Profile
Command 162 Read Volume
Command 163 Write Volume
Command 164 Read Volume Breakpoint
Command 165 Write Volume Breakpoint
Command 166 Read Failsafe
Command 167 Write Failsafe
Command 170 Read Echo Lock
Command 171 Write Echo Lock
Command 172 Read TVT
Command 173 Write TVT
Command 174 Read TVT Shaper
Command 175 Write TVT Shaper
Command 178 Read Analog Special
Command 179 Write Analog Special
Command 182 Read Range Calibration
Command 183 Write Range Calibration
Command 186 Read Wear
Command 206 Read Confidence
Command 207 Write Confidence Threshold
Command 208 Read Local Display Commands
Command 209 Write Local Display Commands
Appendix L: Software Revision History
Software
Rev.
DD
Rev.
Date
Changes
Initial release
J: Sorftware Revision
mmmmm
•
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Glossary
accuracy: degree of conformity of a measure to a standard or a true value.
agitator: mechanical apparatus for mixing or aerating. A device for creating turbulence.
algorithm: a prescribed set of well-defined rules or processes for the solution of a problem in a
finite number of steps.
ambient temperature: the temperature of the surrounding air that comes in contact with the
enclosure of the device.
antenna: an aerial which sends out and receives a signal in a specific direction. There are four
basic types of antenna in radar level measurement, horn, parabolic, rod, and waveguide.
attenuation: a term used to denote a decrease in signal magnitude in transmission from one
point to another. Attenuation may be expressed as a scalar ratio of the input magnitude to
the output magnitude or in decibels.
Auto False-Echo Suppression: a technique used to adjust the level of a TVT curve to avoid the
reading of false echoes. (See TVT.)
Auto False-Echo Suppression Distance: defines the endpoint of the TVT distance. (See TVT.)
This is used in conjunction with auto false echo suppression.
beam width: the angle diametrically subtended by the one-half power limits (-3 dB) of the
microwave beam.
beam spreading: the divergence of a beam as it travels through a medium.
blanking: a blind zone extending away from the reference point plus any additional shield
length.The instrument is programmed to ignore this zone.
capacitance: the property of a system of conductors and dielectrics that permits the storage of
electricity when potential differences exist between the conductors. Its value is
expressed as the ratio of a quantity of electricity to a potential difference, and the unit is a
Farad.
confidence: describes the quality of an echo. HIgher values represent higher quality.
Confidence threshold defines the minimum value.
damping: term applied to the performance of an instrument to denote the manner in which the
measurement settles to its steady indication after a change in the value of the level.
dB (decibel): a unit used to measure the amplitude of signals.
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Glossary
7ML19985JE01
derating: to decrease a rating suitable for normal conditions according to guidelines specified
for different conditions.
dielectric: a nonconductor of direct electric current.1
dielectric constant (DK): the ability of a dielectric to store electrical potential energy under the
influence of an electric field. Also known as Relative Permittivity. An increase in the
dielectric constant is directly proportional to an increase in signal amplitude. The value is
usually given relative to a vacuum /dry air: the dielectric constant of air is 11.
echo: a signal that has been reflected with sufficient magnitude and delay to be perceived in
some manner as a signal distinct from that directly transmitted. Echoes are frequently
measured in decibels relative to the directly transmitted signal.
echo confidence: the recognition of the validity of the echo. A measure of echo reliability.
Echo Lock Window: a window centered on an echo in order to locate and display the echo’s
position and true reading. Echoes outside the window are not immediately processed.
Echo Marker: a marker that points to the processed echo.
Echo Processing: the process by which the radar unit determines echoes.
Echo Strength: describes the strength of the selected echo in dB above 1 µV rms.
Echo Profile: a graphical display of a processed echo.
false echo: any echo which is not the echo from the desired target. Generally, false echoes are
created by vessel obstructions.
frequency: the number of periods occurring per unit time. Frequency may be stated in cycles
per second.
hertz (Hz): unit of frequency, one cycle per second. 1 Gigahertz (GHz) is equal to 109 Hz.
HART: Highway Addressable Remote Transducer. An open communication protocol used to
address field instruments.
horn antenna: a conical, horn-shaped antenna which focuses microwave signals. The larger
the horn diameter, the more focused the radar beam.
inductance: the property of an electric circuit by virtue of which a varying current induces an
electromotive force in that circuit or in a neighboring circuit. The unit is a Henry.
Glossary
mmmmm
microwaves: the term for the electromagnetic frequencies occupying the portion of the radio
frequency spectrum from 1 GHz to 300 GHz.
1. Many conductive liquids/electrolytes exhibit dielectric properties; the relative dielectric constant of water is 80.
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multiple echoes: secondary echoes that appear as double, triple, or quadruple echoes in the
distance from the target echo.
Near Blanking: see Blanking
nozzle: a length of pipe mounted onto a vessel that supports the flange.
parameters: in programming, variables that are given constant values for specific purposes or
processes.
polarization: the property of a radiated electromagnetic wave describing the time-varying
direction and amplitude of the electric field vector.
polarization error: the error arising from the transmission or reception of an electromagnetic
wave having a polarization other than that intended for the system.
propagation factor (pf): where the maximum velocity is 1.0, pf is a value that represents a
reduction in propagation velocity as a result of the wave travelling through a pipe or
medium.
pulse radar: a radar type that directly measures distance using short microwave pulses.
Distance is determined by the return transit time.
radar: radar is an acronym for RAdio Detection And Ranging. A device that radiates
electromagnetic waves and utilizes the reflection of such waves from distant objects to
determine their existence or position.
range: distance between a transmitter and a target.
range extension: the distance below the zero percent or empty point in a vessel.
relative humidity: the ratio of the actual amount of moisture in the atmosphere to the maximum
amount of moisture the atmosphere could hold (which varies depending on the air
temperature).
relative permittivity: see dielectric constant.
repeatability: the closeness of agreement among repeated measurements of the same
variable under the same conditions.
shot: one transmit pulse or measurement.
speed of light: the speed of electromagnetic waves (including microwave and light) in free
space. Light speed is a constant 299, 792, 458 meters per second.
stillpipe: a pipe that is mounted inside a vessel parallel to the vessel wall, and is open to the
vessel at the bottom.
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mmmmm
Glossary
7ML19985JE01
stilling-well: see stillpipe.
two wire radar: a low-energy radar. Can be loop powered, analog, intrinsically safe 4 to 20 mA,
or a digital (BUS) transmitter.
TVT (time varying threshold): a time-varying curve that determines the threshold level above
which echoes are determined to be valid.
Glossary
mmmmm
waveguide antenna: a hollow, metallic tube that transmits a microwave signal to the product
target.
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Index
beam spreading 13
blanking (see Near Range) 108
cables
requirements 24
cleaning
instructions 104
conduits
requirements 24
false echo suppression 108
false echoes
set TVT curve to ignore 108
flange sizes
chart 23
function keys
navigation mode 49
HART
device description 117
HART Communications
details 117
hazardous area installations
wiring requirements 25
Identifications and Abbreviations
list 2
installation
hazardous area requirements 25
requirements 11
internal temperature
monitoring 111
device description
HART 117
Device Description (DD)
how to update 54
Level application example 37
level trend viewing
yT diagram in PDM 56
lid-lock set screw 24
locking ring 15, 24
loop voltage vs. loop resistance
power supply requirements 26
loss of echo
definition 107
echo confidence 107
Echo Lock
explanation 107
emission cone
requirements 13
enclosure
opening 24
rotating 15
factory reset
via PDM 55
failsafe timer 111
Fail-safe Timers 107
7ML19985JE01
mA output in Measure mode 110
maintenance
cleaning 104
maintenance settings 81
material mixers 72
Measurement Response
explanation 106
mounting (standard)
horn antennas 14
shielded rod 14
Near Range (blanking) 108
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mmmmm
Abbreviations and Identifications
list 2
activating LR 460 33
address 90
agitator blade detection
avoiding 72
agitators 72
analog output
in Measure mode 110
response rate 106
application example 37
application examples
horizontal tank with volume 59
liquid resin in storage vessel 58
Auto False-Echo Suppression 108
TVT shaper adjustment 56
Index
O
operating principles 105
Quick Start (PDM)
helpful hints 40
launching 39
Quick Start Wizard
via handheld programmer 35
via SIMATIC PDM 38
vessel shape
conical top 12
parabolic top 12
selection 67
welded joints
requirements 16
wiring
cables 24
yT Diagram
level trend viewing 56
receiver signal 106
reset parameters
via PDM 55
settings
adjust parameters via PDM 52
SIMATIC PDM
overview 52
Quick Start 39
Rev. 6.0, SP2 features 52
SITRANS LR 200
overview 4
SITRANS LR250
operating principles 105
stillpipe
weld requirements 16
Support
contact information 2
temperature de-Rating
charts 112
temperature specification
Ambient/Operating 12
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mmmmm
Index
parameter reset
factory reset via PDM 55
parameter settings
adjust via PDM 52
PDM
see SIMATIC PDM 52
pipe sizes 23
power source
requirements 24
power supply requirements
loop voltage vs. loop resistance 26
process temperature
maximum 111
PROFIBUS address 90
programming chart 95
Programming SITRANS LR 460 34
terminals
accessing 24
troubleshooting
communications 97
operation 101
TVT curve 108
TVT Shaper
manual adjustment via PDM 56
SITRANS LR250 (HART) – INSTRUCTION MANUAL
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Index
7ML19985JE01
LCD menu structure
1.
QUICK START
1.1 APPLICATION
1.2 RESPONSE RATE
1.3 SENSOR UNITS
1.4 OPERATION
1.5 LOW CALIB. PT.
1.6 HIGH CALIB. PT.
1.7 APPLY?
2.
SETUP
2.1
DEVICE
2.1.1 LCD CONTRAST
2.2.1 SENSOR CALIB.
2.2.1.1 ANTENNA
2.2.1.2 APPLICATION
2.2.1.3 RESPONSE RATE
2.2.1.4 SENSOR UNITS
2.2.1.5 OPERATION
2.2.1.6 LOW CALIB. PT.
2.2.1.7 HIGH CALIB. PT.
2.2.1.11 NEAR RANGE
2.2.1.12 FAR RANGE
2.2.1.13 PROPAG. FACTOR
2.2.1.14 LEVEL OFFSET
2.2.2 VOL CONVERSION
2.2.2.1 VESSEL SHAPE
2.2.3 VOLUME BREAKPT
2.2.3.1 MAX. VOLUME
2.2.3.2 DIMENSION A
2.2.3.3 DIMENSION L
2.2.3.4 TABLE 1 – 8
2.2.3.5 TABLE 9 – 16
2.2.3.6 TABLE 17 – 24
2.2.3.7 TABLE 25 – 32
2.2.4 ECHO PROC.
2.2.4.1 ECHO SELECT
2.2.4.1.1
2.2.4.1.2
2.2.4.1.3
2.2.4.2 SAMPLING
2.2.4.2.1
2.2.4.2.4
2.2.4.2.5
2.2.4.2.6
LCD menus
mmmmm
2.2 INPUT
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ALGORITHM
POSITION
ECHO THRESHOLD
ECHO LOCK
SAMPLING UP
SAMPLING DOWN
WINDOW
7ML19985JE01
2.2.4.3 FILTERING
2.2.5
2.2.6
2.2.7
2.2.8
2.3.1 MA OUTPUT
2.3.1.1
2.3.1.2
2.3.1.3
2.3.1.4
2.3.1.5
2.3.1.6
2.3.1.7
2.3.1.8
MA OUTPUT VALUE
MA OUTPUT FUNC.
4 MA SETPOINT
20 MA SETPOINT
MIN. MA LIMIT
MAX. MA LIMIT
4 MA OUTPUT TRIM
20 MA OUTPUT TRIM
2.4 FAIL-SAFE
2.4.1 FAILSAFE TIMERS
2.4.2 FAILSAFE MAT. LEVEL
2.4.4 FAILSAFE LEVEL
3.
DIAGNOSTICS
3.1 ECHO PROFILE
3.14 MEAS. VALUES
3.14.1 CURR. INTERN. TEMP.
3.14.2 MAX. INTERN. TEMP.
3.14.3 MIN. INTERN TEMP.
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2.3 OUTPUT
LCD menus
2.2.4.3.2 DAMPING FILTER
2.2.4.4 TANK BOTTOM ALG
2.2.4.4.3 CLEF RANGE
2.2.4.5 NOISE
2.2.4.5.1 CONFIDENCE
2.2.4.5.2 STRENGTH
2.2.4.5.3 NOISE AVERAGE
TVT SETUP
2.2.5.1 TVT HOVER LEVEL
2.2.5.6 AUTO ECHO SUPP
2.2.5.7 AUTO SUPP RANGE
2.2.5.8 SHAPER MODE
TVT SHAPER
2.2.6.1 SHAPER 1-9
2.2.6.2 SHAPER 10-18
2.2.6.3 SHAPER 19-27
2.2.6.4 SHAPER 28-36
2.2.6.5 SHAPER 37-40
RATE
2.2.7.1 RESPONSE RATE
2.2.7.2 FILL RATE
2.2.7.3 EMPTY RATE
TB VALUES
2.2.8.1 READING MEAS.
2.2.8.2 MATERIAL MEAS.
2.2.8.3 SPACE MEAS.
2.2.8.4 DISTANCE MEAS.
2.2.8.5 VOLUME MEAS.
2.2.8.7 SENSOR VALUE
3.15 REMAIN. DEV. LIFE
3.15.1 TOTAL OP--TIME
3.15.2 REMAIN. LIFETIME
3.15.3 MAINT REQ LIMIT
3.15.4 MAINT DEM LIMIT
3.15.5 ALERT ACTIVATION
3.15.6 TOTAL EXP. LIFE
3.15.7 MAINT STAT
3.15.8 ACK STATUS
3.15.9 ACK
3.16 REMAIN. SENS. LIFE
3.16.1 SENS OP--TIME
3.16.2 REMAIN. LIFETIME
3.16.3 MAINT REQ LIMIT
3.16.4 MAINT DEM LIMIT
3.16.5 ALERT ACTIVATION
3.16.6 TOTAL EXP. LIFE
3.16.7 MAINT STAT
3.16.8 ACK STATUS
3.16.9 ACK
LCD menus
mmmmm
4.
SERVICE
4.1
4.2
4.4
4.7
4.8
4.9
4.11
4.12
4.17
FACTORY RESET
POWERED HOURS
POWERON RESETS
MANUF. DATE
SOFTWARE REV
LOADER REV
HARDWARE REV
MEM. TEST
SERVICE INTERVAL
4.17.1 TIME LAST SERV
4.17.2 MAINT REQ LIMIT
4.17.3 MAINT DEM LIMIT
4.17.4 ALERT ACTIVATION
4.17.5 SERVICE INTERVAL
4.17.6 MAINT STAT
4.17.7 ACK STATUS
4.17.8 ACK
4.18 CALIB. INTERVAL
4.18.1 TIME LAST CAL.
4.18.2 MAINT REQ LIMIT
4.18.3 MAINT DEM LIMIT
4.18.4 ALERT ACTIVATION
4.18.5 TOTAL CALIB.INTRV
4.18.6 MAINT STAT
4.18.7 ACK STATUS
4.18.8 ACK
Page 132
SITRANS LR250 – INSTRUCTION MANUAL
7ML19985JE01
5.
COMMUNICATION
5.1 DEVICE ADDRESS
5.2 COMM. CONTROL
6.
SECURITY
6.1 LOCK
6.2 UNLOCK VALUE
7.
LANGUAGE
SITRANS LR250– INSTRUCTION MANUAL
Page 133
mmmmm
LCD menus
7ML19985JE01

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