MA_H250_M40_en_4000640704_R04 Y5 1 Krohne H250 M40 Manual
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H250 M40
Handbook
Variable area flowmeter
© KROHNE 07/2016 - 4000640704 - MA H250-M40 R04 en
: IMPRINT :::::::::::::::::::::::::::::::::::::::
All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH.
Subject to change without notice.
Copyright 2016 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
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CONTENTS
H250 M40
1 Safety instructions
1.1
1.2
1.3
1.4
5
Intended use ..................................................................................................................... 5
Certifications .................................................................................................................... 6
Pressure equipment directive.......................................................................................... 6
Safety instructions from the manufacturer ..................................................................... 8
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
Copyright and data protection ................................................................................................ 8
Disclaimer ............................................................................................................................... 8
Product liability and warranty ................................................................................................ 9
Information concerning the documentation........................................................................... 9
Warnings and symbols used................................................................................................. 10
1.5 Safety instructions for the operator............................................................................... 10
2 Device description
11
2.1 Scope of delivery............................................................................................................. 11
2.2 Device version................................................................................................................. 12
2.2.1 Indicator versions ................................................................................................................. 13
2.2.2 Float damping ....................................................................................................................... 15
2.2.3 Pointer damping.................................................................................................................... 15
2.3 Nameplate ...................................................................................................................... 16
2.4 Description code............................................................................................................. 17
2.5 Electronic revision.......................................................................................................... 18
3 Installation
19
3.1 Notes on installation ...................................................................................................... 19
3.2 Storage ........................................................................................................................... 19
3.3 Installation conditions .................................................................................................... 20
3.3.1 Tightening torques ................................................................................................................ 22
3.3.2 Magnetic filters ..................................................................................................................... 22
3.3.3 Heat insulation ...................................................................................................................... 23
4 Electrical connections
24
4.1 Security information ....................................................................................................... 24
4.2 Electrical connection indicator M40............................................................................... 25
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
Limit switches K1/K2 ............................................................................................................ 25
ESK4 / ESK4A current output ............................................................................................... 28
ESK4-T limit outputs............................................................................................................. 31
ESK4-T pulse output ............................................................................................................. 33
ESK4-T binary input .............................................................................................................. 34
ESK4-FF / ESK4-PA fieldbus communication...................................................................... 35
Harting HAN 7D connection.................................................................................................. 36
4.3 Grounding connections................................................................................................... 37
4.4 Ingress protection .......................................................................................................... 37
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CONTENTS
H250 M40
5 Start-up
38
5.1 Standard device .............................................................................................................. 38
5.2 Indicator ESK4-T ............................................................................................................ 38
6 Operation
39
6.1 ESK4 / ESK4A - Loop Check Mode ................................................................................. 39
6.2 Operating elements ESK4-T........................................................................................... 40
6.3 Basic principles of operation ESK4-T ............................................................................ 41
6.3.1 Description of the operating keys......................................................................................... 41
6.3.2 Navigation within the menu structure.................................................................................. 41
6.3.3 Change the settings in the menu.......................................................................................... 42
6.4 Overview of the units ESK4-T ......................................................................................... 43
6.5 Error messages ESK4-T................................................................................................. 44
6.6 ESK4-T menu.................................................................................................................. 46
6.6.1 Factory settings .................................................................................................................... 46
6.6.2 Menu structure ..................................................................................................................... 47
6.6.3 Menu description .................................................................................................................. 49
7 Service
56
7.1 Maintenance ................................................................................................................... 56
7.2 Replacement and retrofitting......................................................................................... 56
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
Replacing floats .................................................................................................................... 56
Retrofitting float damping..................................................................................................... 57
Retrofitting limit switch ........................................................................................................ 57
Replacement - Retrofitting ESK4 / ESK4A ........................................................................... 58
Replacement - Retrofitting add-on module ESK4-T / PA / FF............................................. 59
7.3 Spare parts availability................................................................................................... 59
7.3.1 List of spare parts ................................................................................................................. 59
7.4 Availability of services .................................................................................................... 63
7.5 Returning the device to the manufacturer..................................................................... 63
7.5.1 General information.............................................................................................................. 63
7.5.2 Form (for copying) to accompany a returned device............................................................ 64
7.6 Disposal .......................................................................................................................... 64
8 Technical data
8.1
8.2
8.3
8.4
4
65
Functional principle........................................................................................................ 65
Technical data................................................................................................................. 66
Dimensions and weights ................................................................................................ 73
Measuring ranges........................................................................................................... 76
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SAFETY INSTRUCTIONS 1
H250 M40
1.1 Intended use
CAUTION!
Responsibility for the use of the measuring devices with regard to suitability, intended use and
corrosion resistance of the used materials against the measured fluid lies solely with the
operator.
INFORMATION!
This device is a Group 1, Class A device as specified within CISPR11:2009. It is intended for use in
industrial environment. There may be potential difficulties in ensuring electromagnetic
compatibility in other environments, due to conducted as well as radiated disturbances.
INFORMATION!
The manufacturer is not liable for any damage resulting from improper use or use for other than
the intended purpose.
The variable area flowmeters are suitable for measuring clean gases, vapours and liquids.
Intended use:
• The product may not contain any ferromagnetic particles or solids. It may be necessary to
install magnetic filters or mechanical filters.
• The product must be sufficiently liquid and free of deposits.
• Avoid pressure surges and pulsing flows.
• Open valves slowly. Do not use solenoid valves.
Use suitable measures to eliminate compression vibrations during gas
measurements:
•
•
•
•
Short pipeline lengths to next restriction
Nominal pipe size not greater than nominal device size
Use of floats with damping
Increase in operating pressure (while taking into account the resulting change in density and
thus change in scale)
Observe installation conditions according to VDI/VDE 3513-3.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
CAUTION!
Do not use any abrasive media containing solid particles or highly viscous media.
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1 SAFETY INSTRUCTIONS
H250 M40
1.2 Certifications
CE marking
The device fulfils all applicable statutory requirements of the EU directives:
• Pressure equipment directive
• For devices with electrical installations: EMC directive
• Devices for use in hazardous areas: ATEX directive
as well as
• NAMUR recommendations NE 21, NE 43 and NE 107
The manufacturer certifies successful testing of the product by applying the CE mark.
A EU declaration of conformity regarding the directives in question and the associated
harmonised standards can be downloaded from our website.
1.3 Pressure equipment directive
A conformity assessment in accordance with pressure equipment directive has been carried out
for the devices described. Conformity is certified by applying the CE mark. The number of the
notified body is also stated.
The PED key describes the rating of the devices:
Example: PED/G1/III/H
G
Gases and vapours
1
Fluid group 1
III
Category III
H
Conformity assessment method according to Module H
The PED key identification can be found on the nameplate of the device (for details refer to
Nameplate on page 16).
INFORMATION!
The stated pressures (PS) and temperatures (TS) only apply as refers to the pressure resistance
of the sensor body. As regards the functionality of the entire device, further restrictions of the
maximum temperature may need to be observed (e.g. ATEX approval). Devices rated below
category I due to their size, do not receive the CE mark in the scope of the PED. These devices
are subject to applicable sound engineering practice (SEP).
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SAFETY INSTRUCTIONS 1
H250 M40
Residual risk
A risk analysis in accordance with the pressure equipment directive has been carried out for the
devices . The residual risk is described as follows:
• The devices are designed according to the valid and applicable rules and standards for static
operation and their pressure resistance is calculated for the declared maximum pressure
and temperature (no calculation for cyclical change).
• Responsibility for the use of the measuring devices with regard to corrosion resistance of the
used materials against the measured fluid lies solely with the operator.
• Avoid abrasion.
• Avoid pulsation and cavitation.
• Protect devices from vibration and high-frequency oscillation.
• Draining (backflow) may be delayed due to the float in the measuring tube.
• Implement appropriate measures to counteract external fire hazards
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1 SAFETY INSTRUCTIONS
H250 M40
1.4 Safety instructions from the manufacturer
1.4.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to copyright. Contributions from third
parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.4.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.
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SAFETY INSTRUCTIONS 1
H250 M40
1.4.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation or operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
1.4.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of icons as shown below.
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1 SAFETY INSTRUCTIONS
H250 M40
1.4.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This warning refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
• HANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
This symbol refers to all important consequences of the previous actions.
1.5 Safety instructions for the operator
WARNING!
In general, devices from the manufacturer may only be installed, commissioned, operated and
maintained by properly trained and authorized personnel.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device.
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DEVICE DESCRIPTION 2
H250 M40
2.1 Scope of delivery
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 2-1: Scope of delivery
1
2
3
4
5
Measuring device in ordered version
For the ESK4-T version - bar magnet
Documentation
Certificates, calibration report (supplied to order only)
Wrench
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2 DEVICE DESCRIPTION
H250 M40
2.2 Device version
• H250 with indicator M40
• H250 with M40 indicator with display cut-out for ESK4-T
1. H250/RR/M40
• Local indicator without auxiliary power
• Max. 2 limit switches, type NAMUR, NAMUR safety-oriented or transistor (3-wire)
• Electrical signal output 4...20 mA, HART® or Fieldbus communication
• Intrinsically safe (Ex i) or in explosion-proof enclosure (Ex d)
2. H250/RR/M40
• Additional LCD, measured value and/or flow counter
• 2 configurable binary outputs, limit value or pulse output
• 1 binary input, Start / Stop / Reset flow counter
• 2-wire current output 4…20 mA, HART® communication
• Intrinsically safe (Ex i) or in explosion-proof enclosure (Ex d)
Optional versions:
•
•
•
•
•
•
H250 with indicator M40 as high temperature version HT
H250 with indicator M40 with increased corrosion protection (special paint finish)
H250H for use in horizontal pipelines
H250U for use in vertical fall pipes
H250F with hygienic measuring tube design for Food & Pharma
H250C with PTFE / TFM liner for aggressive media
Display options
• M40 - Aluminium, single-layer powder coating (polyester)
• M40S - Aluminium, two-layer powder coating (epoxy / polyester)
• M40R - Stainless steel without coating
Offshore wet coating for aluminium or stainless steel on request
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DEVICE DESCRIPTION 2
H250 M40
2.2.1 Indicator versions
The M40 indicator can be fitted with various modules.
Basic version
1
2
3
4
5
6
7
Pointer module
Bolts for ESK4 / ESK4A attachment
Baseplate
Module profile
Pressure piece for ESK4 / ESK4A attachment
Housing cover locking device
Earth terminal external
Versions K1 / K2 and ESK4 / ESK4A
1 Indicator with K2 contact module
2 Indicator with ESK4 / ESK4A current output 4...20 mA
Both versions can be combined with one another.
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2 DEVICE DESCRIPTION
H250 M40
Version ESK4-T
1
2
3
4
5
6
7
ESK4 / ESK4A connection
Module cover
Display
Display module ESK4-IO
Operating keys ^ ↑
Connection binary outputs and reset input
Module connection cable
Version Fieldbus ESK4-FF / ESK4-PA
1 Basic module with electronic magnet sensors ESK4 / ESK4A
2 Connection bus module
3 DIP switch for bus settings
For more details see the supplementary instructions "H250 M40 Foundation Fieldbus"
and "H250 M40 Profibus PA"
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DEVICE DESCRIPTION 2
H250 M40
2.2.2 Float damping
Float damping is characterised by high standstill times and self-centering. The damping sleeve
is made of high performance ceramic or PEEK, depending on the medium and the application.
Float damping can also be retrofitted for the user (refer to "Service").
Use of damping
• Generally when CIV and DIV floats are used for gas measurement.
• For TIV floats (H250/RR and H250/HC only) with an operating primary pressure:
Nominal size acc. to
Operating primary pressure
EN 1092-1
ASME B16.5
[bar]
[psig]
DN 50
½"
≤0.3
≤4.4
DN25
1"
≤0.3
≤4.4
DN50
2"
≤0.2
≤2.9
DN80
3"
≤0.2
≤2.9
DN 100
4"
≤0.2
≤2.9
2.2.3 Pointer damping
In principle, the indicating element with its magnetic system contains indicator damping. An
additional eddy current brake is advantageous in the event of fluctuating or pulsing flows. The
magnets on the eddy current brake surround the pointer vane without touching it, damping its
movement. The result is a much steadier pointer position, without distorting the measured
value. A turnbuckle ensures a proper fit. The eddy current brake can be retrofitted during
operation without recalibrating (refer to "Service").
1
2
3
4
Eddy current brake
Pointer vane
Bracket
Pointer cylinder
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2 DEVICE DESCRIPTION
H250 M40
2.3 Nameplate
INFORMATION!
Check on the device nameplates, that the device is supplied according to your order.
0035
0102
H250/.././M40/..-Ex
P/A: 011123456.001
MD:201x
PED/G1/II/H
PS: xxx bar
PTmax: xxx bar
TS: xx °C
Tag-No.:
PTB 11 ATEX 2012 X
II2G Ex ia IIC T6
IECEx PTB 11.0069 X
Tamb: -20°C... +60°C
(T6: +40°C)
Ui = xxV
Ci = xxnF
Ii = xxmA
Li = xuH
Pi = xW
Ii = xxmA
Li = xuH
Pi = xW
Kmin1
Ui = xxV
Ci = xxnF
Ui = xxV
Ci = xxnF
Ii = xxmA
Li = xuH
Pi = xW
Kmin2
ESK...
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Figure 2-2: Nameplate on the indicator
1
2
3
4
5
6
7
8
Device type
Manufacturer
Notified body ATEX & PED
Rating data: temperature & pressure rating
PED data
Ex data
Electrical connection data
Internet site
Additional markings on the indicator
•
•
•
•
•
16
SN - serial number
SO - sales order / item
PA - production order
Vx - product configurator code
AC - article code
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DEVICE DESCRIPTION 2
H250 M40
2.4 Description code
The description code* consists of the following elements:
1 Device type
H250 - standard version
H250H - horizontal flow direction
H250U - flow direction from top to bottom
2 Materials / versions
RR - stainless steel
C - PTFE or PTFE/ceramics
HC - Hastelloy®
Ti - Titanium
Mo - Monel
F - aseptic version (food)
3 Heating jacket version
B - with heating jacket
4 Type series of indicators
M40 - Indicator M40
M40S - indicator with increased corrosion protection
M40R - indicator in stainless steel housing
5 High temperature version
HT - version with HT extension
6 Electrical signal output
ESK - electrical signal output 4...20 mA (ESK4 / ESK4A)
- optionally available with counter, I/O module and display (ESK4-T) or
- Foundation Fieldbus (ESK4-FF) or
- Profibus PA (ESK4-PA)
7 Limit switches
K1 - one limit switch
K2 - two limit switches
8 Explosion protection
Ex -explosion proof equipment
9 SIL version
SE - SIL compliant electronic signal output
SK - SIL compliant limit switch
* positions which are not needed are omitted (no blank positions)
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2 DEVICE DESCRIPTION
H250 M40
2.5 Electronic revision
The electronic revision (sticker on the base module ESK4 / ESK4A) indicates the respective
hardware/software status of the electronics. All add-on modules (ESK4-T, ESK4-FF and ESK4PA) have an additional sticker indicating their respective firmware version.
Electronic revision
Explanations
ER 1.1.x
Basic version (cannot be combined with other indicator versions):
ESK4 / current output 4…20 mA with HART® communication
(ESK4 HART DD 01.01. AMS10x AMS11x
ESK4 HART DD 01.01. PDM6.0
ESK4 HART DTM 1.0.3 FDT1.2)
ER 2.0.x
Functional add-on to ER 1.1.x:
can be combined with indicator version ESK4 FF / Foundation Fieldbus;
(Firmware version FF module from 1.0.2)
ER 2.1.x
Functional add-on to ER 2.0.x
can be combined with indicator version ESK4-PA / Profibus PA
(Firmware version PA module from 1.0.0)
can be combined with indicator version ESK4-T / LCD, binary inputs/outputs
(Firmware version T module from 1.1.0)
ER 2.2.x
Functional add-on to ER 2.1.x:
Support of failure signal (low) according to NE 43
for the ESK4 current output module
ER 3.0.x
Functional add-on:
Update for HART® communication from 5.9 to 7.4 including new DD/DTM
can be combined with ESK4-FF (Firmware version FF module from 1.0.2)
Firmware Version ESK4-PA (... PA module from 1.0.0)
Firmware Version ESK4-T (... T module from 1.2.0)
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INSTALLATION 3
H250 M40
3.1 Notes on installation
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
3.2 Storage
•
•
•
•
Store the device in a dry, dust-free location.
Avoid lasting direct exposure to the sun.
Store the measuring device in the original packaging.
The permissible storage temperatures for standard devices are: -40...+80°C / -40...+176°F
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3 INSTALLATION
H250 M40
3.3 Installation conditions
CAUTION!
When installing the device in the piping, the following points must be observed:
• The variable area flowmeter must be installed vertically (measuring principle). Flow direction
•
•
•
•
•
•
•
•
•
•
•
•
20
from bottom to top. For installation recommendations please refer also to directive
VDI/VDE 3513, sheet 3.
H250Hs are installed horizontally and H250U devices are installed vertically with the flow
direction from top to bottom.
A straight unimpeded inlet run of ≥ 5 DN upstream of the device and a straight outlet run of
≥ 3 DN downstream of the device are recommended.
Screws, bolts and gaskets are to be provided by the customer and must be selected in
accordance with the pressure rating of the connection or the operating pressure.
The inside diameter of the flange deviates from the standard dimensions. Flange seal
standard DIN 2690 can be applied without any limitation.
Align the gaskets. Tighten the nuts with the tightening torques of the appropriate pressure
rating.
For devices with PTFE liner or ceramic liner and PTFE raised faces, refer to chapter
"Tightening torques".
Control devices are to be positioned downstream of the measuring device.
Shutoff devices are preferably to be positioned upstream of the measuring device.
Before connecting, blow or flush out the pipes leading to the device.
Pipes for gas flow need to be dried before the device is installed.
Use connectors suitable for the particular device version.
Align the pipes centrically with the connection bores on the measuring device so they are free
of stresses.
If necessary, the piping has to be supported to reduce the vibrations transmitted to the
measuring device.
Do not lay signal cables directly next to cables for the power supply.
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INSTALLATION 3
H250 M40
Minimum distance between devices
When several devices are installed next to one another, a minimum distance of a > 300 mm /
11.8" between the devices is necessary.
Take special note of the installation position for the H250H with horizontal flow
direction:
In order to comply with thermal parameters and measuring accuracy, H250H flowmeters for
horizontal installation are to be installed in the pipeline so that the display is located on the side
of the measuring tube. The maximum product and ambient temperatures indicated as well as
the measuring accuracy are based on lateral installation of the display.
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3 INSTALLATION
H250 M40
3.3.1 Tightening torques
For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange
threads with the following torques:
Nominal size acc. to
EN 1092-1
DN
PN
Stud bolts
ASME B16.5
Inch
EN
lb
Max. torque
ASME
150 lb
300 lb
EN 1092-1
Nm
ASME 150 lb
ft*lbf
Nm
ft*lbf
15
40
½"
150/300
4x M12
4x ½"
4x ½"
9.8
7.1
5.2
3.8
25
40
1"
150/300
4x M12
4x ½"
4x 5/8"
21
15
10
7.2
50
40
2"
150/300
4x M16
4x 5/8"
8x 5/8"
57
41
41
30
80
16
3"
150/300
8x M16
4x 5/8"
8x ¾"
47
34
70
51
100
16
4"
150/300
8x M16
8x 5/8"
8x ¾"
67
48
50
36
3.3.2 Magnetic filters
The use of magnetic filters is recommended when the medium contains particles which can be
influenced magnetically. The magnetic filter is to be installed in the flow direction upstream of
the flowmeter. Bar magnets are positioned helically in the filter to provide optimal efficiency at
low pressure loss. All of the magnets are coated individually with PTFE to protect against
corrosion. Material: 1.4404/316L
Magnetic filters
1 Type F - fitting part with flange - overall length 100 mm / 4"
2 Type FS - fitting part without flange - overall length 50 mm / 2"
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INSTALLATION 3
H250 M40
3.3.3 Heat insulation
CAUTION!
The indicator housing may not be heat-insulated.
The heat insulation 3 may only reach to the housing mounting 4.
1 Standard indicator M40
2 Indicator with HT extension
CAUTION!
The heat insulation 1 may only reach to the rear of the housing 2. The area around the cable
entries 3 must be freely accessible.
Figure 3-1: Insulation - cross section
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4 ELECTRICAL CONNECTIONS
H250 M40
4.1 Security information
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
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ELECTRICAL CONNECTIONS 4
H250 M40
4.2 Electrical connection indicator M40
4.2.1 Limit switches K1/K2
The M40 indicator can be fitted with a maximum of two limit switches. The limit switch works as
a slot sensor which is inductively activated via the semi-circular metal vane of the pointer. The
switching points are set using the contact pointers. The position of the contact pointers is
indicated on the scale.
Limit switch module
1
2
3
4
5
Min. contact
Max. contact
Locking screw
Maximum pointer
Connection terminal
The connection terminals have a pluggable design and can be removed to connect the cables.
The built-in limit switch types are shown on the nameplate of the indicator.
Electrical connection of the limit switches
Contact
MIN
MAX
Terminal no.
1
2
Connection 2-wire NAMUR
-
+
Connection 3-wire
+
-
+
-
Connection Reed SPST
+
-
+
-
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3
4
5
-
+
6
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4 ELECTRICAL CONNECTIONS
H250 M40
Limit switch connection terminals
1
2
3
4
5
6
7
8
2-wire limit switch NAMUR
3-wire limit switch
Limit switch Reed SPST
Terminal connection of Min. contact
Terminal connection of Max. contact
3-wire load
NAMUR isolated switching amplifier
3-wire power supply
Limit setting
Figure 4-1: Limit switch settings
1 Contact pointer MAX
2 Contact pointer MIN
3 Locking screw
Setting is carried out directly via contact pointers 1 and 2:
•
•
•
•
Slide the scale aside.
Loosen the locking screw 3 slightly.
Slide the scale back to the latching point.
Set contact pointers 1 and 2 to the desired switching point.
After setting: Fix the contact pointers with the locking screw 3.
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ELECTRICAL CONNECTIONS 4
H250 M40
Switch contact definition
1 MIN contact
2 MAX contact
3 Pointer vane with switching vane
If the pointer vane goes into the slot, an alarm is triggered. If the pointer vane is outside of the
proximity switch, a wire break in a NAMUR contact also triggers the alarm.
The 3-wire limit switch does not have any wire break detection.
Definition MinMin - MaxMax
1 MIN 2 contact or MAX 1 contact
2 MIN 1 contact or MAX 2 contact
Current consumption in the position shown:
Contact
Type
Current
MIN 1
NAMUR
≤ 1 mA
MIN 2
NAMUR
≤ 1 mA
MAX 1
NAMUR
≥ 3 mA
MAX 2
NAMUR
≥ 3 mA
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4 ELECTRICAL CONNECTIONS
H250 M40
4.2.2 ESK4 / ESK4A current output
The connecting terminals of the ESK4 / ESK4A have a pluggable design and can be removed in
order to connect the cables.
ESK4 / ESK4A connection
1 Current output of ESK4 / ESK4A
2 Power supply 14...30 VDC
3 Measuring signal 4...20 mA
4 External load, HART® communication
Power supply M40 with galvanic isolation
Wiring must be planned with great care when it comes to connecting other devices such as
evaluation units or process control. Internal connections in these devices (e.g. GND with PE,
mass loops) may lead to non-permitted voltage potentials which could negatively affect the
function of the converter itself or that of a device connected to it. In such cases a protected extralow voltage (PELV) is recommended.
1
2
3
4
Terminal connection
Converter isolator with galvanic isolation
Power supply (refer to isolator information)
Measuring signal 4...20 mA
5 External load, HART® communication
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ELECTRICAL CONNECTIONS 4
H250 M40
Power supply
INFORMATION!
The supply voltage has to be between 14 VDC and 30 VDC. This is based on the total resistance of
the measuring loop. To calculate this, the resistance of each component in the measuring loop
(not including the device) must be added together.
The required supply voltage can be calculated using the formula below:
Uext. = RL * 24 mA + 14 V
with
Uext. = minimum supply voltage
RL = total measuring loop resistance
INFORMATION!
The power supply has to be able to supply a minimum of 30 mA.
HART® communication
When HART® communication is carried out with the ESK4, the analogue measured data
transmission (4...20 mA) is not impaired in any way.
Exception for multidrop operation. In multidrop operation a maximum of 15 devices with HART®
function can be operated in parallel, whereby their current outputs are switched to inactive
(I approx. 4 mA per device).
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4 ELECTRICAL CONNECTIONS
H250 M40
Load for HART® communication
INFORMATION!
For HART® communication a load of at least 230 Ω is required.
The maximum load resistance is calculated as follows:
DANGER!
Use a twisted two-core cable to prevent electrical interference from impeding the DC output
signal.
In some cases a shielded cable may be necessary, e.g if noise levels higher than the NE 21
specification are anticipated.
Configuration
The ESK can be configured via HART® communication. DD (Device Description) for AMS and PDM
as well as a DTM (Device Type Manager) for PACTwareTM are available for configuration. They
can be downloaded free of charge from the website of the manufacturer.
The current flow rate can be transmitted using the integrated HART® communication. A flow
counter can be configured. Two limit values can be monitored. The limit values are assigned
either to flow values or to the counter overflow.
Self monitoring - Diagnostics
During both start-up and operation, a wide variety of diagnostic functions are performed
cyclically in the ESK4 / ESK4A in order to guarantee function reliability. When an error is
detected, a failure signal (high) is activated (current > 21 mA, typically 22 mA) via the analogue
output. In addition more detailed information can be requested via HART® (CMD#48). The failure
signal is not activated for information and warnings.
Diagnostic functions (Monitoring):
•
•
•
•
•
•
•
•
Plausibility of FRAM data
Plausibility of ROM data
Working range of internal reference voltages
Signal detection of the measuring range of the internal sensors
Temperature compensation of the internal sensors
Calibration based on the application
Plausibility of counting value
Plausibility of physical unit, system and selected unit
For ESK4A (HART® 7) the diagnosis is reported in compliance with NE 107.
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ELECTRICAL CONNECTIONS 4
H250 M40
4.2.3 ESK4-T limit outputs
Once the housing cover has been unscrewed, the scale can be removed. The connection
terminals have a pluggable design and can be removed to connect the cables.
1
2
3
4
Binary output 1
ESK4 / ESK4A power supply / current output
Binary output 2
Binary input
The binary inputs/outputs are electrically isolated from each other and from the ESK4 / ESK4A
current output.
INFORMATION!
The binary inputs/outputs can only be operated if the power supply is applied to ESK4 / ESK4A
terminal 11+ and 12-. The binary inputs/outputs are inactive by default and must thus be
activated prior to first use (for details refer to ESK4-T menu on page 46).
Connection binary outputs
In accordance with the desired signal transmission, select one of the following connection types
for binary outputs B1 and B2:
• NAMUR (DC interface acc. to EN 60947-5-6)
• Transistor output (passive, Open Collector)
Binary output
B1
Terminal no.
1
2
Connection NAMUR
+
-
Connection transistor output
+
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B2
3
BOC
4
5
+
-
+
6
BOC
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4 ELECTRICAL CONNECTIONS
1
2
3
4
5
H250 M40
NAMUR terminal connection
Isolated switching amplifier
OC switch output terminal connection
Power supply Uext.
Load RL
Value range for NAMUR
NC contact
NO contact
Switching value reached
< 1 mA
> 3 mA
Switching value not reached
> 3 mA
< 1 mA
Value range applies only when connected to a switching amplifier with the following
reference values:
• Open-circuit voltage U0 = 8.2 VDC
• Internal resistance Ri = 1 kΩ
Value range for transistor output
Signal voltages
via load RL
UL [V]
lower limit
upper limit
lower limit
upper limit
0
2
16
30
Signal currents
Category 2
UH [V]
IL [mA]
IH [mA]
lower limit
upper limit
lower limit
upper limit
0
2
20
110
To ensure the value ranges, a load RL between 250 Ω and 1 kΩ is recommended for the passive
transistor output with a nominal voltage of 24 VDC.
If other loads are used, caution is advised as the range of values of the signal voltages then no
longer corresponds to the range of values for the inputs of process control systems and controls
(DIN IEC 946).
CAUTION!
The upper limit of the signal current must not be exceeded as this may damage the transistor
output.
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ELECTRICAL CONNECTIONS 4
H250 M40
4.2.4 ESK4-T pulse output
INFORMATION!
The binary outputs can also be operated as pulse outputs. When using the binary outputs as a
pulse output, two separate signal circuits are required. Each signal circuit requires its own
power supply.
The total resistance 4 must be adapted so that the total current Itot does not exceed 100 mA.
Electrical connection of pulse output
1
2
3
4
5
6
Terminal for power supply - current output
Terminal B2
Flow measurement 4...20 mA
Pulse output load e.g. counter
Power supply for ESK4
Power supply for pulse output
The pulse output B2 is a passive "open collector" output which is electrically isolated from the
current output and output B1. It can be operated as a low-resistance output or as a NAMUR
output.
Figure 4-2: Data for pulse output
1 fmax = 10 Hz
2 ton
3 toff
The pulse width ton can be configured from 50...500 ms in the indicator menu.
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4 ELECTRICAL CONNECTIONS
H250 M40
4.2.5 ESK4-T binary input
The binary input can be used to control the internal flow counter (start/stop/reset).
Value range for NAMUR
Binary input
B3
Terminal no.
7
8
Connection
+
-
Binary input
1 Function active HI
2 Function active LO
This binary input can be activated in the menu of the indicator and can be configured to ACTIVE
HI or ACTIVE LO.
If the input is set as ACTIVE LO, an interruption causes the counter to be reset.
For further information on configuration of each function refer to ESK4-T menu on page 46.
Value range
Input voltage
Terminal (7) (8)
UL [V]
UH [V]
lower limit
upper limit
lower limit
upper limit
0
2
16
30
The binary input has an internal resistance Ri of 20 kΩ.
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ELECTRICAL CONNECTIONS 4
H250 M40
4.2.6 ESK4-FF / ESK4-PA fieldbus communication
1
2
3
4
FF HSE Bus / Profibus DP
Linking device / bus coupler
FF H1 Bus / Profibus PA, 2-wire with shielding
H250/M40/ESK4-FF / H250/M40/ESK4-PA
ESK4-FF / ESK4-PA
•
•
•
•
2-wire, bus-supplied
Polarity protected
Bus voltage 9...32 VDC
Nominal current 16 mA
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4 ELECTRICAL CONNECTIONS
H250 M40
4.2.7 Harting HAN 7D connection
1 Terminal pin assignment of HAN® 7D - View of plug connection
K1/K2: NAMUR
contacts
R1/R2 Reed
contacts
ESK4/ESK4A
1
2 NAMUR MIN (-)
2 Reed MIN
2
2 NAMUR MIN (+)
3
4
1 Pin no. HAN® 7D
Terminal no.
NAMUR
Reed
-
1
1
2 Reed MIN
-
2
3
3 NAMUR MAX (-)
3 Reed MAX
-
4
4
3 NAMUR MAX (+)
3 Reed MAX
-
5
6
5
-
-
4 4...20mA (+)
11
6
-
-
4 4...20mA (-)
12
7
-
-
-
8
-
-
-
Combinations of K1 / K2 and ESK4 / ESK4A are possible.
1 Pin no. HAN® 7D
ESK4-T
Terminal no.
1
5 Binary output B1 open coll. (+)
1
2
5 Binary output B1 open coll. (-)
3
3
7 Binary output B2 open coll. (+)
4
4
7 Binary output B2 open coll. (-)
6
5
6 4...20mA (+)
11
6
6 4...20mA (-)
12
7
-
8
-
INFORMATION!
No Harting connection for module ESK4-FF/PA is provided and is only available on request.
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ELECTRICAL CONNECTIONS 4
H250 M40
4.3 Grounding connections
1 Grounding connection in the indicator
2 Grounding connection outside
DANGER!
The grounding wire may not transfer any interference voltage.
Do not use this grounding cable to ground any other electrical devices.
4.4 Ingress protection
The measuring device meets all requirements of ingress protection IP66/68.
DANGER!
After all servicing and maintenance work on the measuring device, the specified protection class
must be ensured again.
Therefore it is essential to observe the following points.
• Use only original gaskets. They must be clean and free of any damage. Defective gaskets must
be replaced.
• The electrical cables must be undamaged and must comply with regulations.
• The cables must be laid with a loop 3 upstream of the measuring device to prevent water
from getting into the housing.
• The cable feedthroughs 2 must be tightened.
• Close the unused cable feedthroughs using blanking plugs 1.
1 Use blanking plugs if no cable is routed through
2 Tighten cable feedthrough firmly
3 Lay the cable in a loop
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5 START-UP
H250 M40
5.1 Standard device
CAUTION!
When starting up the device, the following points must be observed:
• Compare the actual operating pressure and the product temperature of the system with the
•
•
•
•
•
specifications on the nameplate (PS and TS). These specifications may not be exceeded.
Make sure materials are compatible.
Slowly open the shut-off valve.
When measuring liquids ensure that the pipelines are carefully evacuated.
When measuring gases, increase pressure slowly.
Avoid float impact (e.g. caused by solenoid valves), as this is likely to damage the measuring
unit or float.
A minimum operating pressure (primary pressure) is necessary to operate the device:
Medium
Pressure loss : operating pressure
Liquids
1:2
Gases without float damping
1:5
Gases with float damping
1:2
5.2 Indicator ESK4-T
INFORMATION!
The device is always preset for the user and his application.
Start
After the device is switched on, the display shows
• "INITIALISING"
• Firmwareversion IO-Modul
The device first performs a self-test. Here, all of the parameters preset for the customer are
analysed and checked for plausibility. The device then switches to measuring mode and indicates
the current measured value.
Operation
INFORMATION!
The device is low-maintenance
Comply with the application limits with regard to temperature of the medium and ambient
temperature.
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OPERATION 6
H250 M40
6.1 ESK4 / ESK4A - Loop Check Mode
The ESK4 / ESK4A is equipped with a loop check function, enabling a simple test of the entire
4…20 mA current loop.
It is activated and operated using a microswitch 1.
CAUTION!
When activating the loop check mode, ensure that no alarms are unintentionally triggered in the
downstream system components.
• Press and hold the microswitch 1 for more than 6 seconds to activate the loop check mode 3.
The current output jumps to constant 4 mA.
• Change the current output from constant 4 mA to constant 20 mA as often as you like by briefly
pressing it (less than 6 seconds) to check the function of the measuring circuit.
• Exit loop check mode by holding down the microswitch (longer than 6 seconds). The current
output jumps back to measuring mode 2.
INFORMATION!
If the microswitch has not been pressed for longer than 60 seconds, the ESK4 / ESK4A
automatically returns to measuring mode 2.
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6 OPERATION
H250 M40
6.2 Operating elements ESK4-T
The device is operated with the cover on the front open, using the mechanical keys,
keys or with the
cover closed using a bar magnet.
magnet
CAUTION!
The switching point of the magnetic sensors is directly at the height of the corresponding circle
(see figure). Only touch the circle vertically and from the front using the bar magnet. Touching it
from the side may cause an error in the measurement as the float position is recorded by the
magnetic field sensors.
Figure 6-1: Display and operating elements
1 Enter button (circuit for bar magnet)
2 Up button (circuit for bar magnet)
3 Right button (circuit for bar magnet)
The mechanical keys and keys for the bar magnet have the same functionality. In this
documentation the keys are represented as symbols to describe the operating functions:
Key
Symbol
1
Enter
^
2
up
↑
3
right
→
Table 6-1: ESK4-T operation keys
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OPERATION 6
H250 M40
6.3 Basic principles of operation ESK4-T
6.3.1 Description of the operating keys
→
Switch from measuring mode to menu mode
Switch to one menu level lower
Open menu item and activate change mode
Confirm query whether data should be accepted
In change mode: Move the input cursor one position to the right. After the last digit the
input cursor jumps back to the beginning.
↑
Change between the menu items within a menu level
In measuring mode: Switch between measured values and error messages
In change mode: Changing parameters or settings. Run through the available characters
(including decimal point.
^
In measuring mode: Switch between measured value display and error messages /
warnings
Switch to one menu level higher
Return to measuring mode with a query whether the data should be accepted
Cancel the query, whether data should be accepted
Table 6-2: Description of the operating keys
6.3.2 Navigation within the menu structure
Navigate through the menu using the →, ↑ and ^ keys. Pressing the → key takes you one menu
lower. Using the ↑ key takes you one menu item higher (e.g. from 1 to 2). Pressing the ^ key
takes you one menu higher.
If you are already at the lowest level (function level), the key takes you to the change mode,
where you can set data and values.
If you are at the first level (main menu), you can use the ^ key to exit the menu mode and return
to the measuring mode.
If settings were changed, the query whether they should be saved will appear. Confirm this query
with the → key or cancel it with the ^ key.
Measuring
mode
→
^
Main menu
↑
→
^
Submenu
↑
→
^
Function
↑
→
^
Edit
→↑^
Table 6-3: Navigation in menu structure
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6 OPERATION
H250 M40
6.3.3 Change the settings in the menu
Starting operation
Operation is started using the → key.
If an operation lock is set, the code (→ → → ^ ^ ^ ↑ ↑ ↑) must be entered. The code can be set
in menu 3.13. The code shown here is set at the factory but not activated. If no key is activated
within 5 seconds or an incorrect code is entered, a warning message is displayed and the
indication returns to measuring mode.
Exit operation
Operation is exited by pressing the ^ key several times.
If data have been changed:
Save Yes
→
Changes are accepted. An update is carried out and the display returns to
measuring mode.
Save No
^
Changes are discarded and the display returns to measuring mode.
CAUTION!
Each time parameters or settings are changed, the measuring device carries out an internal
plausibility check.
If inplausible entries were made, a warning message is shown. If this warning is confirmed with
the ^ key, the display returns to the respective menu item without saving the relevant change. A
new entry can now be made.
Example: Changing the flow unit from m3/h to l/h
Display
42
Display
Example:
7.2
m3/h
1x →
Fct. 3.11.1
1
MEAS'D VALUE
1x →
Fct. 1
OPERATION
1x →
10.0000
m3/h
2x ↑
Fct. 3
INSTALLATION
4x ↑
10000
l/h
1x →
Fct 3.1
1
LANGUAGE
10x ↑
Fct 3.11
11
FS&UNIT
Confirm with →
deny ^
3x ^
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OPERATION 6
H250 M40
6.4 Overview of the units ESK4-T
Volume units can either represent real operating volumes (no prefix before the unit) or standard
volumes virtually converted to reference statuses.
Prefix
Volume definition
None
Operating volume flow e.g. m3/h or ft3/h
N
Volume flow at standard (norm.) conditions (0°C - 1.013 bara) acc. to DIN 1343 e.g. Nm3/h
S
Volume flow at standard (std.) conditions (15°C - 1.013 bara) acc. to ISO 13443 e.g. Sft3/h
Measured variables
Units
Operating
volume flow
m3/s
m3/min
m3/h
m3/d
L/s
L/min
L/h
-
ft3/s
ft3/min
ft3/h
ft3/d
gal/s
gal/min
gal/h
gal/d
bbl/s
bbl/min
bbl/h
bbl/d
ImpGal/s
ImpGal/min
ImpGal/h
ImpGal/d
Standard (norm.)
volume flow
Nm3/s
Nm3/min
Nm3/h
Nm3/d
NL/s
NL/min
NL/h
-
Standard (std.)
volume flow
Sm3/s
Sm3/min
Sm3/h
Sm3/d
SL/s
SL/min
SL/h
-
Sft3/s
Sft3/min
Sft3/h
Sft3/d
g/s
g/min
g/h
-
kg/s
kg/min
kg/h
kg/d
-
t/min
t/h
t/d
lb/s
lb/min
lb/h
lb/d
-
STon/min
STon/h
STon/d
-
LTon/h
LTon/d
l
hl
ft3
bbl
bbl (liq)
Mass flow
Operating
volume totalizer
m
ImpGal
gallon
Standard (norm.)
volume totalizer
Nm3
NL
Standard (std.)
volume totalizer
Sft3
SL
Sm3
Mass totalizer
kg
g
t
STon
LTon
°C
°F
Temperature
3
lb
K
In addition to the predefined units shown here, a user-defined unit can be activated in Menu 3.12
by entering a conversion factor and a unit designation as free text.
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6 OPERATION
H250 M40
6.5 Error messages ESK4-T
Error messages and warnings are indicated by one of the following symbols in the bottom left
corner of the display. The ^ key switches from the measured value display to the display of
current errors / warnings. The table below contains a description of possible error messages.
Symbol
NE107
Category
Description
Consequence
F
Failure
No measured value available
Output signal invalid
Error current signal is output.
S
Out of specification
Measurement available but increasing
measurement uncertainty. Device must
be checked.
M
Maintenance required
Measurement still sufficiently accurate
but maintenance required.
C
Function check
Device is in test or linearization mode.
The output signal temporarily does not
correspond to the measurement.
I
Information
No influence on the measurement,
information only.
Error message
Description
Category
Remedy
NOT LINEARIZED
Linearization faulty or not
activated = measuring
error
S
NEW LINEARI. TABLE
BAD
Faulty or missing data in
the linearization table =
measuring error
S1
Activate linearization or carry it out again (HART®
communication and linearization software are
required; the original calibration values must be
known), or send the device back to the
manufacturer for linearization.
LINEARIZATIO UNDER
CONFIG
The device is in
linearization mode =
measuring error
S
Complete the linearization and activate it (HART®
communication and linearization software are
required), or send the device back to the
manufacturer for linearization.
UNIT SYSTEM
CONFLICT
The unit for the
linearization flow is
incompatible with the
selected flow type
(mass/volume)
S
Correct error, carry out linearization again if
necessary (HART® communication and
linearization software are required), or send the
device back to the manufacturer for linearization.
TOO FEW ENTRIES
The linearization table has
too few data points
S
Carry out linearization at at least 5 points (HART®
communication and linearization software are
required), or send the device back to the
manufacturer for linearization.
NOT MONOTONOUS
The sequence of the
linearization values is not
strictly monotonic
increasing
S
Check linearization and/or carry it out again
(HART® communication and linearization
software are required), or send the device back to
the manufacturer for linearization.
FIRST NOT 0 %
The first flow value if the
linearization table is not
0%
LAST NOT 100 %
The last flow value if the
linearization table is not
100%
44
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OPERATION 6
H250 M40
Error message
Description
Category
Remedy
NO ZERO CAL
OF AO
The current output zero
point 4.00 mA is not
calibrated = poss.
measuring error in the
process control system
S
Perform calibration using ammeter and menu
3.10 or using standard HART® tools/process
control system and poss. external ammeter.
Caution: during calibration, switch the measuring
point to manual control.
NO F.SC. CAL
OF AO
The current output 100% =
20.00 mA is not calibrated
= poss. measuring error in
the process control
system
S
Perform calibration using ammeter and menu
item 3.11 or using standard HART® tools and
external ammeter if necessary. Caution: during
calibration, switch the measuring point to manual
control.
NO TEMP.
COMPENSATION
The sensor temperature
compensation of the
device is faulty or was not
carried out = possible
measuring error
S
The device, together with an indication of the
error, must be sent back to the manufacturer for
checking.
WRONG ELEC.REV.
The ER revision of the
ESK4 / ESK4A is not
compatible with the addon module, or the ribbon
cable connection is not
connected properly.
S
Check that the ribbon cable fits properly. Check
module compatibility (for details refer to
Electronic revision on page 18).
OUTPUT NOT
LINEARIZED
Linearization is not
activated = measuring
error
S
Activate linearization or carry it out again (HART®
communication and linearization software are
required; the original calibration values must be
known), or send the device back to the
manufacturer for linearization.
COUNTER LOST
Totalizer value was reset
by error/overflow
S1
Because the reset time is not known: Controlled
reset of the counter using menu item 1.6.1 or
using HART® tools/process control system.
FRAM WRITE FAULT
Internal communication
error
F
Check whether the display is plugged in correctly
and restart the device. If the error occurs again:
send the device back to the manufacturer with an
indication of the error.
ROM/FLASH ERROR
Memory error detected
during self-test.
F
Restart device. If the error occurs again: send the
device back to the manufacturer with an
indication of the error.
RESTART OF DEVICE
A device restart has taken
place
I
The device has been restarted using menu item
1.6.2 since the last time the error messages were
reset.
MULTIDROP MODE
The HART® multidrop
mode is activated. The
current output is set to a
fixed value of 4.5 mA.
I
The HART® multidrop mode is activated with
selection of a polling address not equal to 0 using
menu item 3.7. Polling address 0 reactivates the
current output.
CRYSTAL OSC FAULT
Internal error in device
F
REF VOLTAGE FAULT
Internal error in device
The device must be sent back to the manufacturer
with an indication of the error.
SENSOR A FAULT
Internal error in device
SENSOR B FAULT
Internal error in device
MEMORY
CORRUPTION
Internal memory error,
caused by a hardware or
software problem
F
Restart the device; if the error occurs again the
device must be sent back to the manufacturer
with an indication of the error.
AO FIXED
The current output is set
to a fixed value.
I
The current output is fixed and does not reflect
the measured value. This is the case in multidrop
mode, with current output test/calibration using
the menu or HART®.
AO SATURATED
Current output saturated
I
The current output is saturated at >20.4 mA and is
no longer linked to the measurement.
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45
6 OPERATION
H250 M40
Error message
Description
Category
Remedy
ERROR TIMEOUT
Data not transferred, or
transferred incorrectly
from the ESK to the
counter module
F
Confirm menu item "1.6.3 WRITE INFO I/O".
WARNING TIMEOUT
I
1 Category can be changed by user
6.6 ESK4-T menu
6.6.1 Factory settings
Function
Setting
1.1.1 OUTPUT B1
INACTIVE
1.2.1 OUTPUT B2
INACTIVE
1.3.1 PULSEWDTH
50ms
1.3.2 PULSE/UNIT
1 Pulse/Unit
1.4 DISPLAY
MEAS’D VALUE
1.4.2 ROTATION
0°
1.5 TIME CONST.
1.0s
1.6.1 COUNTER
NO
1.6.2 ERROR
NO
1.6.3 RE-INIT I/O
NO
3.1 LANGUAGE
ENGLISH
3.2 FUNCTION B1
INACTIVE
3.3 CONTACT B1
NORM.OPEN
3.4 FUNCTION B2
INACTIVE
3.5 CONTACT B2
NORM.OPEN
3.6 FUNCTION B3
INACTIVE
3.7 MULTIDROP
POLLING ADD: 00
3.8 4mA CALIBR.
4.000mA
3.9 20mA CALIBR.
20.000mA
3.10 ALARM CURR.
ALARM HIGH
3.11 FS&UNIT
Application specific
3.11.2 COUNTER
Application specific
3.12 EDIT UNIT
User defined unit / factor
3.13 L.FL.CUTOFF
4% ON; 6% OFF
3.14 DESCRIPTOR
Free text
3.15 ENTRY CODE
OFF
3.16 DEFAULT VAL.
NO
INFORMATION!
The measuring device has been preset at the factory in accordance with the customer order.
Therefore subsequent configuration via the menu is only necessary if the intended use of the
device is changed.
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OPERATION 6
H250 M40
6.6.2 Menu structure
Main menu
Submenu 1
Submenu 2
1 OPERATION
1.1 OUTPUT B1
1.1.1 INACTIVE, MEAS.VAL. B1, CNT. VAL. B1, PULSE WIDTH
1.1.2 HYST. B1, PULSE/UNIT
1.2 OUTPUT B2
1.2.1 INACTIVE, MEAS.VAL. B2, CNT. VAL. B2, PULSE WIDTH
1.2.2 HYST. B2, PULSE/UNIT
1.3 PULSE OUTP.
1.3.1 PULSE WIDTH
1.3.2 PULSE/UNIT
1.4 DISPLAY
1.4.1 MEAS'D VALUE, COUNTER, MV/COUNTER, MV&COUNTER,
PERCENT
1.4.2 ROTATION
1.5 TIME CONST
-
1.6 RESET
1.6.1 COUNTER
1.6.2 ERROR
1.6.3 WRITE INFO IO
2 TEST & INFO
2.1 4-20mA OUTP
2.1.1 NORMAL OP
2.1.2 4.0mA
2.1.3 5.6mA
2.1.4 7.2mA
2.1.5 8.8mA
2.1.6 10.4mA
2.1.7 12.0mA
2.1.8 13.6mA
2.1.9 15.2mA
2.1.10 16.8mA
2.1.11 18.4mA
2.1.12 20.0mA
2.1.13 21.6mA
2.2 ALARM CURR.
ALARM HIGH, ALARM LOW
2.3 OUTPUT B1
2.3.1 NORMAL OP
2.3.2 OPEN
2.3.3 CLOSED
2.4 OUTPUT B2
2.4.1 NORMAL OP
2.4.2 OPEN
2.4.3 CLOSED
2.5 INPUT B3
ACTIVE HI, ACTIVE LO, ON, OFF
2.6 DEV. IDENT.
2.6.1 ELEC. REV.
2.6.2 SERIAL ESK4
2.6.3 PROD. ORDER
2.6.4 DEV. SN.
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47
6 OPERATION
H250 M40
Main menu
Submenu 1
Submenu 2
2 TEST & INFO
2.7 SOFT.VERSION
2.7.1 FW. ESK4
2.7.2 FW. ESK4 I/O
3 INSTALLATION
2.8 TAG NB.
8 characters
2.9 LONG TAG
32 characters
3.1 LANGUAGE
3.1.1 ENGLISH
3.1.2 DEUTSCH
3.1.3 FRANCAIS
3.1.4 ITALIANO
3.1.5 ESPANOL
3.1.6 CESKY
3.1.7 POLSKI
3.1.8 NEDERLANDS
3.1.9 DANSK
3.2 FUNCTION B1
INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.
3.3 CONTACT B1
NORM.OPEN, NORM.CLOSED
3.4 FUNCTION B2
INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.
3.5 CONTACT B2
NORM.OPEN, NORM.CLOSED
3.6 FUNCTION B3
INACTIVE, ACTIVE HI, ACTIVE LO, STARTH STOPL, STARTL STOPH
3.7 MULTIDROP
POLLING ADD.
3.8 4mA CALIBR.
4.000mA
3.9 20mA CALIBR.
20.000mA
3.10 ALARM CURR.
OFF, ALARM HIGH, ALARM LOW
3.11 FS&UNIT
3.11.1 MEAS'D VALUE
3.11.2 COUNTER
3.12 EDIT UNIT
3.12.1 MEAS'D VALUE
3.12.2 COUNTER
3.13 L.FL.CUTOFF
3.13.1 CONTROL ON, CONTROL OFF
3.13.2 ON VALUE
3.13.3 OFF VALUE
48
3.14 DESCRIPTOR
Free text
3.15 ENTRY CODE
OFF, ON
3.16 DEFAULT VAL.
SET ALL
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OPERATION 6
H250 M40
6.6.3 Menu description
1 OPERATION
Selection / Input
Explanation
1.1 OUTPUT B1
Output B1 is a binary switching output. In Fct. 3.2, one of the following functions can be
selected for this output:
INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.
One of the following functions can be selected as contact type in Fct. 3.3:
NORM.OPEN 1 / NORM.CLOSED 2
1.1.1
INACTIVE
-
MEAS.VAL. B1
Switching point of flow value
Value range: 0.0…full scale range
The switching point is entered in flow units.
If the current flow value exceeds this pre-determined switching point, output B1 changes
its binary state 3.
CNT. VAL. B1
Switching point of totaliser value
Value range: 0.0…counter limit
The switching point is entered in volume or mass units.
If the the current counter value exceeds this pre-determined switching point, output B1
changes its binary state 3.
There is no hysteresis setting for the switching point of the counter value.
PULSE WIDTH
Pulse weight (pulse/unit)
The weight is only displayed here.
In Fct. 1.1.2 a hysteresis can be specified additionally.
A configuration takes place in Fct. 1.3.1 PULSE WIDTH, 1.3.2 PULSE/UNIT and 3.11.2
COUNTER.
1.1.2 HYST. B1
Hysteresis for the switching point of the flow value
Value range: 0.0…switching point
If the current flow value exceeds the pre-determined switching point from Fct. 1.1.1,
output B1 changes its binary state 3.
In order for output B1 to change its binary state back to the initial setting, the switching
point made smaller by the hysteresis must be undershot 4.
Example:
In 1.1.1, a switching point of 200 L/h is set.
The possible value range for the hysteresis is then 0.0…200 L/h.
With a hysteresis value of 0, the switching point has no hysteresis (3=4).
If a hysteresis value of 20 L/h is entered, output B1 changes its binary state to the initial
setting, if it drops below 180 L/h 4.
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49
6 OPERATION
H250 M40
Selection / Input
Explanation
1.2 OUTPUT B2
Output B2 is a binary switching output. In Fct. 3.4, one of the following functions can be
selected for this output:
INACTIVE, SWITCH POINT, COUNT. LIMIT, PULSE OUTP.
One of the following functions can be selected as contact type in Fct. 3.5:
NORM.OPEN 1 / NORM.CLOSED 2
1.2.1
INACTIVE
-
MEAS.VAL. B2
Refer to MEAS.VAL. B1
In Fct. 1.2.2 a hysteresis can be specified additionally.
CNT. VAL. B2
Refer to CNT. VAL. B1
PULSE WIDTH B2
Refer to PULSE WIDTH B1
A configuration takes place in Fct. 1.3.1 PULSE WIDTH, 1.3.2 PULSE/UNIT and 3.11.2
COUNTER.
1.2.2 HYST. B2
Refer to HYST. B1
1.3 PULSE OUTP.
-
1.3.1 PULSE WIDTH
50ms
Ti = 50 ms; fmax = 10 Hz
max. pulses/h = 36000
100ms
Ti = 100 ms; fmax = 5 Hz
max. pulses/h = 18000
200ms
Ti = 200 ms; fmax = 2.5 Hz
max. pulses/h = 9000
500ms
Ti = 500 ms; fmax = 1 Hz
max. pulses/h = 3600
1.3.2 PULSE/UNIT
0.001...1000
Pulse per volume or mass unit of counter (setting in Fct. 3.11.2), which can be output via
one of the binary outputs. The maximum frequency for the pulse output (refer to Fct 1.3.1)
cannot be exceeded, even at maximum flow rate (full scale).
Example:
Final value Qmax = 1200 L/h; volume unit of counter = Litre; pulse width = 100ms;
If the factor 1 is entered, 1 pulse/litre = 1200 pulses are generated in one hour at maximum
flow rate.
Number of max. permissible pulses:
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OPERATION 6
H250 M40
1.4 DISPLAY
Different measured values can be selected for permanent or alternating display.
The reading on the display can be rotated.
1.4.1
MEAS’D VALUE
Permanent display of flow in flow units
COUNTER
Permanent display of totalizer
MEAS.VAL/CTN
Alternating display of flow value in flow units and totalizer
MEAS.VAL&CTN
Simultaneous display of flow value and totalizer
PERCENT
Permanent display of flow value in percent
1.4.2 ROTATION
0°
The reading is not rotated.
90°
The reading on the display is rotated by 90°.
180°
The reading on the display is rotated by 180°.
270°
The reading on the display is rotated by 270°.
1.5 TIME CONST
0.0...20.0s
Given in seconds
The output variables (value of the current loop and indicated flow value) follow the current
process by the value set here (in seconds) with a time delay.
Note:
If the current flow is polled via HART® communication, the transferred measured value is
also played back with a delay.
1.6 RESET
Local resetting of totalizer and acknowledgement of warnings.
There is always a safety prompt ("YES / NO"), to avoid accidental resetting.
Note:
External resetting of the totalizer can be installed with the binary input B3.
1.6.1 COUNTER
Confirming with "YES" resets the value of the totalizer to 0.0.
1.6.2 ERROR
Confirming with "YES" acknowledges all existing warnings.
Note:
Confirming with "YES" acknowledges existing errors and warnings.
1.6.3 RE-INIT IO
As a general rule, data is transferred from the counter module to the ESK4 and vice versa
when the device starts. For safety, another data transmission can be performed by
selecting this menu item and confirming with "YES".
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51
6 OPERATION
H250 M40
2 TEST & INFO
Selection / Input
Explanation
2.1 4-20mA OUTP
Testing the current loop by setting various current values.
Note:
The test is not available in HART® multi-drop mode (refer to Fct. 3.7)
Attention:
During the test, the value of the current loop does not follow the current process.
2.1.1 NORMAL OP
The value of the current loop follows the current process.
2.1.2 4.0mA
The value of the current loop no longer follows the current process.
It is set to the selected current value.
2.1.3 5.6mA
2.1.4 7.2mA
2.1.5 8.8mA
2.1.6 10.4mA
2.1.7 12.0mA
2.1.8 13.6mA
2.1.9 15.2mA
2.1.10 16.8mA
2.1.11 18.4mA
2.1.12 20.0mA
2.1.13 21.6mA
2.2 OUTPUT B1
<3.6 / >21 mA
Testing the alarm current HIGH/LOW according to the settings in Fct. 3.10.
2.3 ALARM CURR.
Testing the binary switching output B1 by changing its binary status.
Attention:
During the test, the binary status does not correspond to the current process.
2.3.1 NORMAL OP
The binary status of the switching output corresponds to the current process.
2.3.2 OPEN
The binary status of the switching output no longer corresponds to the current process.
The selected status is tested.
2.3.3 CLOSED
2.4 OUTPUT B2
Refer to 2.2 OUTPUT B1
2.4.1 NORMAL OP
2.4.2 OPEN
2.4.3 CLOSED
2.5 INPUT B3
The current binary status of the binary input B3 is displayed. External switching of the
voltage applied to input B3 activates a change of the displayed binary status.
Note:
A reaction to the switching of the voltage applied to input B3 only occurs if the function B3
is activated (refer to Fct. 3.6).
2.6 DEV. IDENT.
Information for device identification
2.6.1 ELEC. REV.
Electronic revision
2.6.2 SN ESK4
Serial number ESK4
2.6.3 PROD. ORDER
Production order for the complete flowmeter
2.6.4 DEV. SN.
Serial number for the complete flowmeter
2.7 SOFT.VERSION
Information about software revision status
2.7.1 FW. ESK4
Software revision status for device insert ESK4-Basic
2.7.2 FW. ESK4 I/O
Software revision status for optional add-on module ESK4-T
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OPERATION 6
H250 M40
Selection / Input
Explanation
2.8 TAG NB.
8 digits
Measuring point identifier
Alphanumerical characters. Up to eight digits are possible.
2.9 LONG TAG
32 digits
Measuring point identifier
Alphanumerical characters. Up to 32 digits are possible.
3 INSTALLATION
Selection / Input
Explanation
3.1 LANGUAGE
Language selection for the displayed menu texts.
3.1.1 ENGLISH
The menu texts are displayed in the selected language.
3.1.2 DEUTSCH
3.1.3 FRANCAIS
3.1.4 ITALIANO
3.1.5 ESPANOL
3.1.6 CESKY
3.1.7 POLSKI
3.1.8 NEDERLANDS
3.1.9 DANSK
3.2 FUNCTION B1
-
INACTIVE
The binary switching output B1 has no function.
SWITCHING POINT
The binary switching point B1 acts as a limit switch depending on the current flow value.
Configuration of the switching point is in Fct. 1.1.1 MEAS.VAL. B1.
COUNT. LIMIT
The binary switching point B1 acts as a limit switch depending on the current counter
value.
Configuration of the switching point is in Fct. 1.1.1 MEAS.VAL. B1.
PULSE OUTP.
The binary switching point B1 acts as a pulse output depending on the current flow value.
Pulses of a maximum of up to 10 Hz can be generated. The configuration is in Fct. 1.3.1
PULSE WIDTH and 1.3.2 PULSE/UNIT.
Note:
The configuration in Fct. 1.3.1 and Fct. 1.3.2 applies to both pulse outputs. If both B1 and B2
are configured as pulse outputs, both binary outputs behave in exactly the same way.
3.3 CONTACT B1
-
NORM.OPEN
The contact type of the binary switching output B1 is "normally open".
NORM.CLOSED
The contact type of the binary switching output B1 is "normally closed".
3.4 FUNCTION B2
-
INACTIVE
Refer to FUNCTION B1
SWITCHING POINT
Refer to FUNCTION B1
Configuration of the switching point is in Fct. 1.2.1 MEAS.VAL. B2.
COUNT. LIMIT
Refer to FUNCTION B1
Configuration of the switching point is in Fct. 1.2.1 MEAS.VAL. B2.
PULSE OUTP.
Refer to FUNCTION B1
The configuration is in Fct. 1.3.1 PULSE WIDTH and 1.3.2 PULSE/UNIT.
3.5 CONTACT B2
-
NORM.CLOSED
Refer to CONTACT B1
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53
6 OPERATION
H250 M40
Selection / Input
Explanation
NORM.OPEN
Refer to CONTACT B1
3.6 FUNCTION B3
-
INACTIVE
The binary switching input B3 has no function.
ACTIVE HI
The internal flow counter is reset to 0.0 if there is an H level at input B3 for at least 100 ms.
ACTIVE LO
The internal flow counter is reset to 0.0 if there is an L level at input B3 for at least 100 ms.
STARTH STOPL
The counter is started by creating an H level at input B3 and stopped by creating an L level
at input B3.
STARTL STOPH
The counter is started by creating an L level at input B3 and stopped by creating an H level
at input B3.
3.7 MULTIDROP
0…15
Polling address for HART® multi-drop mode
When the address is 0, the HART® multi-drop mode is disabled.
Attention:
When the HART® multi-drop mode (Address 1…15) is activated, the current loop is inactive
(fixed current value of "4.5mA") and no longer follows the current process.
3.8 4mA CALIBR.
D/A calibration for lower range value (4mA)
Note:
This function is not available in HART® multi-drop mode.
Attention:
During calibration, the value of the current loop does not follow the current process.
If an ampere meter detects in the 4...20 mA loop a deviation from the desired value of
"4.000mA", the measured value must be entered. The correction value is accepted
following the query to save and confirm with yes.
3.9 20mA CALIBR.
D/A calibration for the full scale value (20 mA)
Note:
This function is not available in HART® multi-drop mode.
Attention:
During calibration, the value of the current loop does not follow the current process.
If an ampere meter detects in the 4...20 mA loop a deviation from the desired value of
"20.000mA", the measured value must be entered. The correction value is accepted
following the query to save and confirm with yes.
3.10 ALARM CURR.
-
OFF
Error indication via the current loop is deactivated. The current loop follows the current
process.
Note:
This function is not available in HART® multi-drop mode.
ALARM HIGH
Error indication via the current loop is activated (failure signal "high" acc. to NE43).
Note:
This function is not available in HART® multi-drop mode.
ALARM LOW
Error indication via the current loop is activated (failure signal "low" acc. to NE43).
Note:
1) This function is not available in HART® multi-drop mode.
2) This function is supported from ER 2.2.x.
3.11 END&UNIT
By changing the unit, the respective final value is scaled accordingly. Depending on
calibration, either units for volume or mass flow measurement are available for selection.
3.11.1 MEAS'D VALUE
For units for volume flow or mass flow, refer to Overview of the units ESK4-T on page 43.
3.11.2 COUNTER
For units for volume counter or mass counter and pulse output, refer to Overview of the
units ESK4-T on page 43.
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OPERATION 6
H250 M40
Selection / Input
Explanation
3.12 EDIT UNIT
User-defined unit with conversion to calibrated unit.
3.13 L.FL.CUTOFF
L.FL.CUTOFF stands for low flow cutoff.
To ensure a stable zero point of the current output, the current output can be set to a
stable value of "4.00mA" 3 in a selectable range.
3.13.1
CONTROL OFF
LFC function is not active.
CONTROL ON
L.FL.CUTOFF function is active.
3.13.2 LFC ON VAL
Switch-on value 1:
Value range 1…19% (of full scale range)
The flow is greater than the switch-on value. The current output corresponds to this.
If the flow rate falls, the current output follows until the switch-on value 1.
If the flow value continues to fall, the current output is switched to "4.00mA" 3.
Note:
The switch-on value to be set must be smaller than the previously selected switch-off
value.
3.13.3 OFF VALUE
Switch-off value 2:
Value range 2…20% (of full scale range)
The flow rate is 0. The current output is "4.00mA" 3.
If the flow rate increases, the current output remains at "4.00mA" until it has reached the
switch-off value 2.
Note:
The switch-off value to be set must be greater than the previously selected switch-on
value.
3.14 DESCRIPTOR
12 digits
Free text input for header in LCD
3.15 ENTRY CODE
Entry code for the local operating menu.
The entry code is not active by default.
3.15.1 OFF
The use of an entry code is not activated.
3.15.2 ON
If "YES" is selected, the last code that was entered has to be typed in.
Factory code: → → → ^ ^ ^ ↑ ↑ ↑
If, after confirmation with "YES", the → key is pressed additionally, then a new, individual,
nine digits code can be typed in.
The display shows the required key combination.
3.16 DEFAULT VAL.
Resetting parameters to factory default.
There is always a safety prompt ("YES / NO"), to avoid accidental resetting.
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55
7 SERVICE
H250 M40
7.1 Maintenance
Within the scope of routine maintenance of the system and pipelines, the flowmeter should also
be inspected for signs of fouling, corrosion, mechanical wear and leaks, as well as damage to
the measuring tube and the indicator.
We advise that inspections are carried out at least once per year.
The device must be removed from the pipeline before cleaning.
CAUTION!
Pressurised pipes have to be depressurised before removing the device.
Empty the pipelines as completely as possible.
In the case of devices used for measuring aggressive or hazardous media, appropriate safety
precautions must be taken with regard to residual liquids in the measuring unit.
New gaskets have to be used when re-installing the device in the pipeline.
Avoid electrostatic charges when cleaning the surfaces (e.g. sight window)!
7.2 Replacement and retrofitting
Some components of the variable area flowmeter can be retrofitted:
• Float damping
•
•
•
•
Indicator M40:
Limit switch module K1 / K2
Current output 4..20 mA ESK4 / ESK4A
Counter module with LCD and I/O ESK4-T
Fieldbus interface ESK4-PA / FF
7.2.1 Replacing floats
•
•
•
•
Remove the device from the pipeline.
Take the upper snap ring out of the measuring unit.
Take the upper float stop and float out of the measuring unit.
Insert the new float into the centre hole of the lower float stop and push into the measuring
unit along with the upper float stop. While doing this, the float's upper guide rod must be
guided through the middle hole of the float stop.
• Insert the snap ring into the measuring unit.
• Fit the device back into the pipeline.
CAUTION!
Without a recalibration an additional measuring error is to be expected.
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SERVICE 7
H250 M40
7.2.2 Retrofitting float damping
•
•
•
•
Take the upper snap ring 1 out of the measuring unit.
Take the upper float stop 2 and float 5 out of the measuring unit.
Fasten the retaining ring 3 into the lower slot of the float's guide rod.
Slide ceramic sleeve 4 on to the float's guide rod and attach it to the top slot using the
retaining ring 3.
• Insert float into the lower float guide in the measuring unit.
• Retrofit the supplied damping cylinder with the integrated float stop 2 into the measuring
unit.
• Insert upper snap ring 1.
1
2
3
4
5
Snap ring
Float stop
Locking ring
Ceramic sleeve
Float
7.2.3 Retrofitting limit switch
•
•
•
•
Remove ESK4 / ESK4A add-on module (if available).
Merge contact pointer 2 in the middle.
Loosen the locking screw 1 on the contact pointer.
Insert the contact module into slot 3 of the bracket until the semi-circle 1 on the contact
board surrounds the pointer cylinder.
The contact module connecting terminals feature a pluggable design and can be removed in
order to connect the cables.
WARNING!
Do not damage the indicating element!
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7 SERVICE
H250 M40
7.2.4 Replacement - Retrofitting ESK4 / ESK4A
CAUTION!
When replacing or retrofitting an ESK4 / ESK4A, it is mandatory to indicate the serial number
(SN) or sales order (SO) when ordering.
This information can be found on the indicator nameplate.
The ESK4 / ESK4A is factory calibrated, making it possible to replace it or retrofit it without
recalibrating.
• De-energise the ESK4 / ESK4A.
• Lift and remove the ESK4 / ESK4A with a screwdriver.
WARNING!
Do not damage the indicating element!
• The ESK4 / ESK4A plug-in tongues 1 are plugged in under the two bolts 2 on the base plate.
• Slight pressure is used to press the ESK4 / ESK4A onto the spring pins 3 until it stops, firmly
attaching the ESK4 / ESK4A.
If a change in measuring range, product temperature, product, density, viscosity or pressure is
desired, this can be done with the help of a variable area calculation program and with a HART®
modem.
However, each measuring unit is subject to its own physical limits, which the variable area
calculation program correctly calculates, and may thus reject the desired change. If a change is
performed using the program, the new data is also transmitted to the ESK4 / ESK4A:
•
•
•
•
•
•
•
•
58
Device identification
Device address
Serial number
Measuring point identifier
Digital measured value query in flow units, % and mA
Test / setting functions
Calibration 4.00 and 20.00 mA
Set current output to any desired value
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SERVICE 7
H250 M40
7.2.5 Replacement - Retrofitting add-on module ESK4-T / PA / FF
The add-on module for the ESK4 / ESK4A can be replaced or retrofitted on-site without removing
the device from the process control.
• ESK4-T (Display module with LCD and I/O)
• ESK4-PA (Profibus PA interface)
• ESK4-FF (Foundation Fieldbus interface)
More detailed information can be found in the service manual included with each retrofit or
replacement set.
7.3 Spare parts availability
The manufacturer adheres to the basic principle that functionally adequate spare parts for each
device or each important accessory part will be kept available for a period of 3 years after
delivery of the last production run for the device.
This regulation only applies to spare parts which are subject to wear and tear under normal
operating conditions.
7.3.1 List of spare parts
Spare part
Order number
DN15
Float CIV 15, 1.4404
X251041000
Float DIV 15, 1.4404
X251042000
Float TIV 15, 1.4404
X251043000
Float DIVT 15, 1.4404
X251044000
Float TIV 15, Aluminium
X251043100
Float TIV 15, Titanium
X251043200
Set float stop; standard (1 float stop, 1 span ring)
X251050100
Set float stop; gas damping (ZrO2)
X251050200
Set of float stop; gas damping (PEEK)
X251050300
Damping bush (7x8) ZrO2 incl. 2 retaining rings
X251053100
Damping bush (7x8) PEEK incl. 2x retaining rings
X251053200
DN25
Float CIV 15, 1.4404
X252041000
Float DIV 25, 1.4404
X252042000
Float TIV 25, 1.4404
X252043000
Float DIVT 25, 1.4404
X252044000
Set float stop; standard (1 float stop, 1 span ring)
X252050100
Set float stop; gas damping (ZrO2)
X252050200
Set of float stop; gas damping (PEEK)
X252050300
Damping bush (12x8) ZrO2 incl. 2x retaining ring
X252053100
Damping bush (12x8) PEEK incl. 2x retaining ring
X252053200
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7 SERVICE
H250 M40
Spare part
Order number
DN50
Float CIV 55, 1.4404
X253041000
Float DIV 55, 1.4404
X253042000
Float TIV55, 1.4404
X253043000
Float DIVT 55, 1.4404
X253044000
Set float stop; standard (1 float stop, 1 span ring)
X253050100
Set float stop; gas damping (ZrO2)
X253050200
Set of float stop; gas damping (PEEK)
X253050300
Damping bush (14x10) ZrO2 incl. 2x retaining rings
X253053100
Damping bush (14x10) PEEK incl. 2x retaining rings
X253053200
DN80
Float CIV 85, 1.4404
X254041000
Float DIV 85, 1.4404
X254042000
Float TIV 85, 1.4404
X254043000
Float DIVT 85, 1.4404
X254044000
Set float stop; standard (1 float stop, 1 span ring)
X254050100
Set float stop; gas damping (ZrO2)
X254050200
Set of float stop; gas damping (PEEK)
X254050300
Damping bush (18x14) ZrO2 incl. 2x retaining rings
X254053100
Damping bush (18x14) PEEK incl. 2x retaining rings
X254053200
DN100
Float CIV 105, 1.4404
X255041000
Float DIV 105, 1.4404
X255042000
Float DIVT 105, 1.4404
X255044000
Set float stop; standard (1 float stop, 1 span ring) only for bottom!
X255050100
Set float stop; gas damping (ZrO2)
X255050200
Set of float stop; gas damping (PEEK)
X255050300
Damping bush (18x14) ZrO2 incl. 2x retaining rings
X254053100
Damping bush (18x14) PEEK incl. 2x retaining rings
X254053200
Indicator M40
Housing components
Standard indicator housing M40 complete, no scale *
X251110000
Standard indicator housing M40R complete, no scale* (stainless steel, non-coated)
X251111000
Standard indicator housing M40S complete, no scale * (2-layer coating)
X251112000
Standard cover M40
X251110100
Standard cover M40S (2-layer coating)
X251110200
Standard cover M40R (stainless steel, non-coated)
X251110400
Cover seal
X251112100
M40 standard base plate
X251120100
M40S standard base plate (2-layer coating) *
X251120200
M40R standard base plate (stainless steel, non-coated) *
X251120300
Standard = not pressure-tight
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SERVICE 7
H250 M40
Spare part
Order number
Housing components indicator M40
Retrofit kit HT extension
X251021000
Module carrier (profile rail)
X251121100
Set housing attachment parts
X251121300
Pointer system, complete *
X251122100
Magnetic brake for indicating element
X251122200
* Accuracy loss without recalibration
NAMUR 2-wire limit module
Contact module K1 min I7S23,5-N
X251135100
Contact module K1 max I7S23,5-N
X251135200
Contact module K2 min / max I7S23,5-N
X251135300
Contact module K1 min SC3,5 N0
X251133100
Contact module K1 max SC3,5 N0
X251133200
Contact module K2 min / max SC3,5 N0
X251133300
Contact module K2 min / min min - SJ3,5 S1N / SJ 3,5 SN
X251133400
Contact module K2 max / max max - SJ3,5 S1N / SJ 3,5 SN
X251133500
Contact module K1 min SJ3,5 SN
X251133600
Contact module K1 max SJ3,5 SN
X251133700
Contact module K1 min / max SJ3,5 SN
X251133800
3-wire limit module, normally closed
Contact module K1 min SB3,5 E2 - act.Low
X251133900
Contact module K1 max SB3,5 E2 - act.Low
X251134000
Contact module K1 min / max SB3,5 E2 - act.Low
X251134100
3-wire limit module, normally open
Contact module K1 min SB3,5 E2 - act.High
X251134200
Contact module K1 max SB3,5 E2 - act.High
X251134300
Contact module K1 min / max SB3,5 E2 - act.High
X251134400
Electronic modules
ESK4, ESK4-FF, ESK4-PA, ESK4-FF (serial number required)
Cover for add-on modules
X251121500
Connection cable ESK4 to add-on modules
X251121600
Plugs (10 pcs) for ESK4 connection for bus modules
X251132500
Replacement connector
Replacement connector 11/12 for ESK4
X251121700
Replacement connector D/D+ for ESK4-FF or ESK4-PA
X251121800
Replacement connectors 1/2/3, 4/5/6, 7/8 for ESK4-T
X251121900
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7 SERVICE
H250 M40
Spare part
Order number
Replacement cable gland
Single cable gland M20x1.5 black, plastic - for non-Ex / Ex-i
X251150300
Single cable gland M20x1.5 blue, plastic - for non-Ex / Ex-i
X251150100
Single cable gland M20x1.5 brass - for non-Ex / Ex-i / Ex-nA
X251151000
Single cable gland M20x1.5 brass Ex-d/t - for Ex-d / Ex-t
X251152000
Single plug M20x1.5 brass Ex-d/t - for Ex-d / Ex-t
X251153000
Single cable gland M20x1.5 stainless steel Ex-d/t - for Ex-d / Ex-t
X251154000
Single plug M20x1.5 stainless steel Ex-d/t - for Ex-d / Ex-t
X251155000
INFORMATION!
Other spare parts on request.
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SERVICE 7
H250 M40
7.4 Availability of services
The manufacturer offers a range of services to support the customer after expiration of the
warranty. These include repair, maintenance, technical support and training.
INFORMATION!
For more precise information, please contact your local sales office.
7.5 Returning the device to the manufacturer
7.5.1 General information
This device has been carefully manufactured and tested. If installed and operated in accordance
with these operating instructions, it will rarely present any problems.
CAUTION!
Should you nevertheless need to return a device for inspection or repair, please pay strict
attention to the following points:
• Due to statutory regulations on environmental protection and safeguarding the health and
safety of the personnel, the manufacturer may only handle, test and repair returned devices
that have been in contact with products without risk to personnel and environment.
• This means that the manufacturer can only service this device if it is accompanied by the
following certificate (see next section) confirming that the device is safe to handle.
CAUTION!
If the device has been operated with toxic, caustic, radioactive, flammable or water-endangering
products, you are kindly requested:
• to check and ensure, if necessary by rinsing or neutralising, that all cavities are free from
such dangerous substances,
• to enclose a certificate with the device confirming that is safe to handle and stating the
product used.
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7 SERVICE
H250 M40
7.5.2 Form (for copying) to accompany a returned device
CAUTION!
To avoid any risk for our service personnel, this form has to be accessible from outside of the
packaging with the returned device.
Company:
Address:
Department:
Name:
Tel. no.:
Fax no. and/or Email address:
Manufacturer's order no. or serial no.:
The device has been operated with the following medium:
This medium is:
radioactive
water-hazardous
toxic
caustic
flammable
We checked that all cavities in the device are free from such substances.
We have flushed out and neutralized all cavities in the device.
We hereby confirm that there is no risk to persons or the environment through any residual media contained in the
device when it is returned.
Date:
Signature:
Stamp:
7.6 Disposal
CAUTION!
Disposal must be carried out in accordance with legislation applicable in your country.
Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:
According to the directive 2012/19/EU, the monitoring and control instruments marked with the
WEEE symbol and reaching their end-of-life must not be disposed of with other waste.
waste
The user must dispose of the WEEE to a designated collection point for the recycling of WEEE or
send them back to our local organisation or authorised representative.
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TECHNICAL DATA 8
H250 M40
8.1 Functional principle
The H250 flowmeter operates in accordance with the float measuring principle. The measuring
unit consists of a metal cone in which a float can move freely up and down. The flow goes from
bottom to top. The float changes position so that the lifting force acting on it F1 is in equilibrium
with the form drag F2 and its weight F3: F3 = F1 + F2
1 Indication principle M40 magnetic coupling
2 Magnetic coupling sensors
1 For the indicator, the flow-dependent height of the float in the measuring unit is transmitted
by means of a magnetic coupling and displayed on a scale.
2 For a built-in signal converter (ESK4 / ESK4A), the flow-dependent height of the float in the
measuring unit is detected by the S1 and S2 magnetic field sensors and electronically
processed.
Operating principle of H250H and H250U
Figure 8-1: Operating principle H250H and H250U
1 H250H - horizontal flow direction
2 H250U - flow direction from top to bottom
The flowmeter operates in accordance with a modified float measuring principle.
The guided float adjusts itself so that the flow force acting on it is in equilibrium with the
opposing spring force. The flow-dependent position of the float in the measuring unit is
displayed on a scale by means of a magnetic coupling.
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8 TECHNICAL DATA
H250 M40
8.2 Technical data
INFORMATION!
• The following data is provided for general applications. If you require data that is more
relevant to your specific application, please contact us or your local sales office.
• Additional information (certificates, special tools, software,...) and complete product
documentation can be downloaded free of charge from the website (Downloadcenter).
Measuring system
Application range
Flow measurement of liquids, gases and vapours
Function / Measuring principle
Variable area measuring principle
Measured value
Primary measured value
Float position
Secondary measured value
Operating and standard volume flow
Measuring accuracy
Directive
VDI/VDE 3513, sheet 2 (qG = 50%)
H250 /RR /HC /F
1.6%
H250/C (Ceramic, PTFE)
H250H, H250U, H250 (100 : 1)
2.5%
Precision (repeatability)
H250 /RR /HC /F
0.25%
H250H, H250U, H250 (100 : 1)
0.5%
Operating conditions
Temperature
Max. operating temperature TS
-196..+300°C / -321...+572°F
Depending on the version (refer to nameplate)
Pressure
Max. operating pressure PS
Depending on the version (refer to nameplate)
Max. test pressure PT
Depending on the version (refer to nameplate)
Min. required operating pressure
2 times greater than pressure loss (refer to measuring
ranges)
Protection category
M40, M40S, M40R
IP66/68 acc. to EN 60529, NEMA 4/4X/6 acc. to NEMA 250
M40R
IP69K acc. to DIN 40050-9
Float damping during gas measurement recommended:
DN15...25 / ½"...1"
Operating pressure <0.3 barg / 4.4 psig
DN50...100 / 2"...4"
Operating pressure <0.2 barg / 2.9 psig
Installation conditions acc. to VDI/VDE 3513, sheet 3
66
Inlet section
≥ 5 x DN
Outlet section
≥ 3 x DN
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TECHNICAL DATA 8
H250 M40
Materials
Device
Flange
Measuring tube
Float
Float guide
H250/RR
Stainless steel CrNi 1.4404 / 316L
H250/HC
Hastelloy® C4
(2.4610) solid or
plated
H250/F - Food
CrNi steel 1.4435
CrNi-steel 1.4435 / 1.4404
H250/C Ceramic/PTFE 1
CrNi steel 1.4571 with TFM/PTFE 2
PTFE or Al2O3 with
FFKM gasket
Ring orifice
Hastelloy® C4
Al2O3 and
PTFE
Al2O3
1 DN100/4" only PTFE
2 TFM/PTFE liner (electrically non-conductive), conductive PTFE on request
Other options on request:
• Special materials: e.g. SMO 254/6Mo/1.4547, Titan Grade 2, Hastelloy® C276/2.4819,
Monel®/2.4360, Inconel®/2.4856 a.o.
• Float damping: ceramic or PEEK
• Standard gasket for devices with female thread as insert: O-ring FPM / FKM, others optional
e.g. FFKM, EPDM
M40
Aluminium, single-layer powder coating (polyester)
M40S
Aluminium, two-layer powder coating (epoxy / polyester)
M40R
Stainless steel without coating 1.4408 / CF8M
Offshore
Wet coating on request
Temperatures
For devices to be used in hazardous areas, special temperature ranges apply. These can be
found in the Ex supplementary instructions.
Temperatures H250/M40 - mechanical indicator without auxiliary power
Material
Product temperature
Ambient temperature
[°C]
[°F]
[°C]
[°F]
-196...+300
-321...+572
-40...+120
-40…+248
H250/RR screw fitting FPM/FKM
-20...+200
-4...+392
-20…+120
-4…+248
H250/HC
Hastelloy®
-196...+300
-321...+572
-40...+120
-40…+248
H250/C
PTFE
-196...+70
-321...+158
-40...+70
-40…+158
H250/C
Ceramic
PTFE
-196...+150
-321...+302
-40...+70
-40…+158
H250/C
Ceramic
TFM / Ceramic
-196...+250
-321...+482
-40...+120
-40…+248
H250 H/U
Spring material stainless steel 1.4301
-40...+100
-40…+212
-40…+120
-40…+248
-40...+200
-40...+392
-40…+120
-40…+248
Float
H250/RR
Liner
Stainless steel
®
Spring material Hastelloy 2.4610
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8 TECHNICAL DATA
H250 M40
Ambient temperatures Tamb with electrical components
Version
[°C]
[°F]
ESK4, ESK4A, ESK4-FF, ESK4-PA 1
-40...+70
-40...+158
Limit switches SJ3,5-SN / I7S23,5-N / Reed SPST
-40...+70
-40...+158
Limit switches SC3,5-N0 / SJ3,5-S1N / SB3,5-E2
-25...+70
-13...+158
1 Display contrast out of the temperature range 0...+60°C / +32...+140°F decreasing.
Maximum product temperatures H250/M40 - with electrical components [°C]
Tamb < +40°C
Tamb < +60°C 1
EN
ASME
Version with
Standard HT
Standard HT
DN15,
DN25
½", 1"
ESK4 / ESK4A, -FF, -PA
+200
+300
+180
+300
ESK4-T
+200
+300
+140
+290
NAMUR limit switch
+200
+300
+200
+300
3-wire limit switch
+200
+300
+130
+295
ESK4 / ESK4A, -FF, -PA
+200
+300
+165
+300
ESK4-T
+200
+300
+140
+290
NAMUR limit switch
+200
+300
+200
+300
3-wire limit switch
+200
+300
+120
+195
ESK4 / ESK4A, -FF, -PA
+200
+300
+150
+250
ESK4-T
+200
+300
+130
+270
NAMUR limit switch
+200
+300
+200
+300
3-wire limit switch
+190
+300
+110
+160
DN50
DN80,
DN100
2"
3", 4"
Maximum product temperatures H250/M40 - with electrical components [°F]
Tamb < +104 °F
Tamb < +140 °F 1
EN
ASME
Version with
Standard HT
Standard HT
DN15,
DN25
½", 1"
ESK4 / ESK4A, -FF, -PA
392
572
356
572
ESK4-T
392
572
284
554
NAMUR limit switch
392
572
392
572
3-wire limit switch
392
572
266
563
ESK4 / ESK4A, -FF, -PA
392
572
165
572
ESK4-T
392
572
284
554
NAMUR limit switch
392
572
392
572
3-wire limit switch
392
572
248
383
ESK4 / ESK4A, -FF, -PA
392
572
302
482
ESK4-T
392
572
266
518
NAMUR limit switch
392
572
392
572
3-wire limit switch
374
572
230
320
DN50
DN80,
DN100
2"
3", 4"
1 if there are no heat insulation measures, a heat-resistant cable is necessary (continuous
operating temperature of the cable to be used: +100°C / 212°F)
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TECHNICAL DATA 8
H250 M40
Abbreviation
HT
High-temperature version
ESK4 / ESK4A
2-wire current output 4…20 mA with HART 5® / HART 7®
ESK4-T
ESK4 with LCD, binary status outputs, digital counter and pulse output
ESK4-FF
FOUNDATION FIELDBUS interface
ESK4-PA
PROFIBUS PA interface
Cable glands
Material
Cable diameter
[mm]
[Inch]
M20x1.5 Standard
PA
8...13
0.315...0.512
M20x1.5
Nickel-plated brass
10...14
0.394...0.552
M20x1.5
Stainless steel
10...14
0.394...0.552
Limit switches K1/K2
Terminal connection
2.5 mm2
Limit switches
I7S23,5-N
SC3,5-N0
SJ3,5-SN 1
SJ3,5-S1N 1
SB3,5-E2
Reed
NAMUR (IEC 60947-5-6)
Yes
Yes
Yes
No
No
Connection type
2-wire
2-wire
2-wire
3-wire
2-wire
Switching element
function
NC
NC
NO
PNP NO
NC SPST
Nominal voltage U0
8.2 VDC
8.2 VDC
8.2 VDC
10...30 VDC
max. 32 VDC
Pointer vane not detected
≥ 3 mA
≥ 3 mA
≤ 1 mA
≤ 0.3 VDC
U0
Pointer vane detected
≤ 1 mA
≤ 1 mA
≥ 3 mA
UB -3 VDC
0 VDC
Continuous current
-
-
-
Max. 100 mA
Max. 100 mA
No load current I0
-
-
-
≤ 15 mA
-
Switching cycles
-
-
-
-
100000
2
1 safety oriented
2 no inductances
Current output ESK4 / ESK4A
Terminal connection
2.5 mm2
Power supply
14...30 VDC (12...30 VDC without ESK4-T)
Min. power supply for HART®
20 VDC at 250 Ω load
Measuring signal
4.00...20.00 mA = 0...100% flow value in 2-wire technology
Power supply influence
<0.1%
External resistance dependency
<0.1%
Temperature influence
<5 µA/K
Max. external resistance / load
650 Ω at 30 VDC
Min. load for HART®
250 Ω
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8 TECHNICAL DATA
H250 M40
ESK4 HART® configuration
Manufacturer name (code)
®
Model name / HART revision
KROHNE Messtechnik (0x45 = 69)
ESK4 (214 = 0xD6) / HART 5.9
ESK4A (17854 = 0x45BE) / HART 7.4
Physical layer
FSK
ESK4 / ESK4A process variable
Values [%] from full scale
range
Signal output [mA]
Over range
+102.5 (±1%)
20.24...20.56
Device error identification
> 106.25
>21.00
Max. current consumption
131.25
25
Multidrop operation
4.5
ESK4-FF
Physical layer
IEC 61158-2 and FISCO model
Communication standard
H1 FOUNDATION Fieldbus protocol
ITK version
5.2
Power supply
Bus supply
Nominal current
16 mA
Error current
23 mA
Boot-up current after 10 ms
< Nominal current
For more details refer to the supplementary instructions "H250 M40 Foundation Fieldbus".
ESK4-PA
Physical layer
IEC 61158-2 and FISCO model
Communication standard
Profibus PA profile 3.02
PNO ID
4531 HEX
Power supply
Bus supply
Nominal current
16 mA
Error current
23 mA
Boot-up current after 10 ms
< Nominal current
For more details refer to the supplementary instructions "H250 M40 Profibus PA".
70
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TECHNICAL DATA 8
H250 M40
ESK4-T with LCD, binary inputs and outputs and digital counter
Binary output
Two binary outputs
Galvanically isolated; passive
Mode
Switching output
NAMUR or transistor (OC)
Configurable as
switch contact or pulse output
NC / NO or max. 10 pulses/s
NAMUR switch output
Power supply
8.2 VDC
Signal current
> 3 mA switching value not reached;
< 1 mA switching value reached
Switching output transistor (Open Collector)
Power supply
Nominal 24 VDC, maximal 30 VDC
Pmax
500 mW
Continuous current
Max. 100 mA
No load current I0
≤ 2 mA
Pulse output
Ton
Configurable from 50...500 ms
Toff
Depending on flow rate
Pulse weight
Configurable in flow units e.g. 5 pulses/m3
Binary input
Input
Galvanically isolated
Mode
Reset counters or Start / Stop
Configurable as
active HI / active LO
H signal
16...30 VDC
Internal resistance Ri
Typ. 20 kΩ
Ton (active)
≥ 500 ms
LC display
Technology
Passive graphic LCD
Display
Measurement with units and/or counter reading with units. Counter reading
max. 11-digit with power failure proof storage.
Binary flags for limit value status. 0...100% bargraph for measurement.
NE 107 diagnostic status symbols. Plain text menu for configuration.
Configuration
Local plain text menu navigation via microswitch or bar magnet or using
DD/DTM software
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71
8 TECHNICAL DATA
H250 M40
Approvals
72
Standard
Display
Marking
ATEX / IECEx
M40 mechanical
II2GD IIC
II3GD IIC
M40 electrical
II2G Ex ia IIC T6 Gb
II2G Ex d IIC T6 Gb
II3G Ex nA IIC T6 Gc
II2D Ex t IIIC T70°C Db
II2D Ex ia IIIC T85°C Db
FM (USA) NEC500
FM (Canada)
NEC505
M40 electrical
IS Class I Div 1
XP Class I Div 1
NI Class I Div 2
DIP Class II / III Div 1
NEPSI
M40 electrical
Ex ia, Ex d, Ex nA, Ex t
CCOE/PESO
M40 electrical
Ex ia, Ex d
EAC/GOST
M40 electrical
Ex ia, Ex d
INMETRO
M40 electrical
Ex ia, Ex d, Ex nA, Ex t
KGS
M40 electrical
Ex ia, Ex d, Ex nA, Ex t
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07/2016 - 4000640704 - MA H250-M40 R04 en
TECHNICAL DATA 8
H250 M40
8.3 Dimensions and weights
Dimensions H250/M40
Front view
Side view
with heating
a
b
[mm]
H250/RR Flange
H250/F Clamp connection
["]
141
[mm]
5.56
H250/RR from 2" 600 lb
ISO 228 / ASME B1.20.1 / SMS
EN
ASME
c1
[mm]
[mm]
d
["]
9.85
300
11.82
["]
150
[mm]
[mm]
5.91
Øf
["]
h
[mm]
250
e2
["]
High-temperature
150
g
["]
[mm]
["]
5.91
j
["]
[mm]
["]
DN15
½"
94
3.70
114
4.49
20
0.80
97
3.82
197
7.76
DN25
1"
94
3.70
127
5.00
32
1.28
109
4.27
209
8.23
DN50
2"
107
4.22
141
5.55
65
2.57
125
4.90
222
8.74
DN80
3"
107
4.22
157
6.18
89
3.51
143
5.61
238
9.37
DN100
4"
107
4.22
167
6.57
114
4.50
150
5.91
248
9.76
1 without cable gland; 2 Ex d, Ex t, Ex nA +10 mm / 0.39"
ISO 228 / ASME B1.20.1
Female thread screwed
ISO 228 / ASME B1.20.1
Female thread welded
H250/F 1 Clamp
connection
H250/F screw connection
DIN 11851
1 Stainless steel 1.4435 - EHEDG tested - wetted surfaces Ra ≤ 0.8 / 0.6 µm
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73
8 TECHNICAL DATA
H250 M40
Weights
H250
Heating
Nominal size
EN 1092-1
with flange connection
with Ermeto connection
EN
ASME
[kg]
[lb]
[kg]
[lb]
[kg]
[lb]
DN15
½"
DN25
1"
3.5
7.7
5.6
12.6
3.9
8.6
5
11
7.5
16.5
5.8
12.8
DN50
2"
8.2
18.1
11.2
24.7
9.5
21
DN80
3"
12.2
26.9
14.8
32.6
13.1
28.9
DN100
4"
14
30.9
17.4
38.4
15.7
34.6
H250/C [Ceramic / PTFE]
Screw connection
Nominal size
EN 1092-1
ASME 150 lb
ASME 300 lb
DIN 11864-1
EN
ASME
[kg]
[lb]
[kg]
[lb]
[kg]
[lb]
[kg]
[lb]
DN15
½“
3.5
7.7
3.2
7.1
3.5
7.7
2
4.4
DN25
1“
5
11
5.2
11.5
6.8
15
3.5
7.7
DN50
2“
10
22.1
10
22.1
11
24.3
5
11
DN80
3“
13
28.7
13
28.7
15
33.1
7.6
16.8
DN100
4“
15
33.1
16
35.3
17
37.5
10.3
22.7
Process connections
Standard
Flanges (H250/RR /HC /C)
Conn. dim.
Pressure rating
EN 1092-1
DN15...150
PN16...250
ASME B16.5
½...6"
150...2500 lb
JIS B2220
15…100
10...20K
DIN 32676
DN15...100
10...16 bar
ISO 2852
Size 25...139.7
10...16 bar
DIN 11851
DN15...100
25...40 bar
SMS 1146
1...4"
6 barg / 88.2 psig
ISO 228
G½...G2"
≥ 50 barg / 735 psig
ASME B1.20.1
½…2" NPT
Female thread (H250/RR /HC) with insert, FPM
gasket and union nut
ISO 228
G½…2"
ASME B1.20.1
½…2" NPT
Thread connection aseptic (H250/F)
DIN 11864-1
DN15…50
PN40
DN80…100
PN16
DN15…50
PN40
DN80…DN100
PN16
EN 1092-1
DN15
PN40
ASME B16.5
½"
150 lb / RF
-
E12
PN40
Clamp connections (H250/RR /F)
Screw connections (H250/RR /HC /F)
Female thread welded (H250/RR /HC)
Flange aseptic (H250/F)
DIN 11864-2
≤ 50 barg / 735 psig
Measuring device (H250/RR /HC) with heating:
Heating with flange connection
Heating pipe connection for Ermeto
Higher pressure ratings and other connections on request
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TECHNICAL DATA 8
H250 M40
Bolts and tightening torques
For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange
threads with the following torques:
Nominal sizes EN
Stud bolts
Nominal size acc. to EN 1092-1
Tightening torques
Quantity x size
[Nm]
[lb-ft]
DN15 PN40 1
4x M12
9.8
7.1
DN25 PN40 1
4x M12
21
15
DN50 PN40 1
4x M16
57
41
DN80 PN16 1
8x M16
47
34
DN100 PN16 1
8x M16
67
48
1 standard connections; other connections on request
Nominal size ASME
Stud bolts
Nominal size acc. to ASME B16.5
Tightening torques
Quantity x size
150 lb
[Nm]
[lb-ft]
300 lb
½" 150 lb / 300 lb 1
4x ½"
4x ½"
5.2
3.8
1" 150 lb / 300 lb 1
4x ½"
4x 5/8"
10
7.2
2" 150 lb / 300 lb 1
4x 5/8"
8x 5/8"
41
30
3" 150 lb / 300 lb 1
4x 5/8"
8x ¾"
70
51
4" 150 lb / 300 lb 1
8x 5/8"
8x ¾"
50
36
1 standard connections; other connections on request
Pressure tightness (vacuum) H250/C
Max. process temperature +70°C / +158°F
+150°C / +302°F
+250°C / +482°F
Min. operating pressure
Nominal size Float
Liner
[mbara] [psia]
[mbara] [psia]
[mbara] [psia]
DN15...100
PTFE
PTFE
100
1.45
-
-
-
-
DN15...80
Ceramic
PTFE
100
1.45
250
3.63
-
-
DN15...80
Ceramic
TFM /
Ceramic
100
1.45
100
1.45
100
1.45
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75
8 TECHNICAL DATA
H250 M40
8.4 Measuring ranges
H250/RR - Stainless Steel, H250/HC - Hastelloy®
Measuring span:
10 : 1
Flow values:
Values = 100%
Water: +20°C / +68°F
Water
Float
Nominal
size
DN15, ½"
DN25, 1"
DN50, 2"
DN80, 3"
DN100, 4"
TIV
Cone
CIV
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Air
DIV
TIV
Alu.
[l/h]
Max. pressure loss
TIV
DIV
TIV
Alu.
TIV
CIV
DIV
[mbar]
[Nm3/h]
K 15.1
18
25
-
0.42
0.65
-
12
21
26
-
K 15.2
30
40
-
0.7
1
-
12
21
26
-
K 15.3
55
63
-
1
1.5
-
12
21
26
-
K 15.4
80
100
-
1.7
2.2
-
12
21
26
-
K 15.5
120
160
-
2.5
3.6
-
12
21
26
-
K 15.6
200
250
-
4.2
5.5
-
12
21
26
-
K 15.7
350
400
700
6.7
10
18 1
12
21
28
38
K 15.8
500
630
1000
10
14
28 1
13
22
32
50
K 15.8
-
- 1600 2
-
-
50 2
-
-
-
85
K 25.1
480
630
1000
9.5
14
-
11
24
32
72
K 25.2
820
1000
1600
15
23
-
11
24
33
74
K 25.3
1200
1600
2500
22
35
-
11
25
34
75
K 25.4
1700
2500
4000
37
50
110 1
12
26
38
78
K 25.5
3200
4000
6300
62
95
180 1
13
30
45
103 3
K 55.1
2700
6300
8400
58
80
230 1
8
13
74
60
K 55.2
3600
10000
14000
77
110
350 1
8
13
77
69
K 55.3
5100
16000
25000
110
150
700 1
9
13
84
104
K 85.1
12000
25000
37000
245
350
1000 1
8
16
68
95
K 85.2
16000
40000
64000
280
400
1800 1
9
16
89
125
K105.1
19000
63000
100 000
-
550
2800 1
-
-
120
220
1 P >0.5 bar
2 with TR float
3 300 mbar with damping (gas measurement)
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
Nl/h or Nm3/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)
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07/2016 - 4000640704 - MA H250-M40 R04 en
TECHNICAL DATA 8
H250 M40
H250/RR - stainless steel, H250/HC - Hastelloy®
Measuring span:
10 : 1
Flow values:
Values = 100%
Water: +20°C / +68°F
Water
Float
TIV
CIV
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Air
DIV
TIV
Alu.
DIV
TIV
Alu.
TIV
DIV
Cone
DN15, ½"
K 15.1
4.76
6.60
-
0.26
0.40
-
0.18
0.31
0.38
-
K 15.2
7.93
10.6
-
0.43
0.62
-
0.18
0.31
0.38
-
K 15.3
14.5
16.6
-
0.62
0.93
-
0.18
0.31
0.38
-
K 15.4
21.1
26.4
-
1.05
1.36
-
0.18
0.31
0.38
-
K 15.5
31.7
42.3
-
1.55
2.23
-
0.18
0.31
0.38
-
K 15.6
52.8
66.0
-
2.60
3.41
-
0.18
0.31
0.38
-
K 15.7
92.5
106
185
4.15
6.20
11.2 1
0.18
0.31
0.41
0.56
K 15.8
132
166
264
6.20
8.68
17.4 1
0.19
0.32
0.47
0.74
K 15.8
-
-
423 2
-
-
31.0 2
-
-
-
1.25
K 25.1
127
166
264
5.89
8.68
-
0.16
0.35
0.47
1.06
K 25.2
217
264
423
9.30
14.3
-
0.16
0.35
0.49
1.09
K 25.3
317
423
660
13.6
21.7
-
0.16
0.37
0.50
1.10
K 25.4
449
660
1057
22.9
31.0
68.2 1
0.18
0.38
0.56
1.15
K 25.5
845
1057
1664
38.4
58.9
111 1
0.19
0.44
0.66
1.51 3
K 55.1
713
1664
2219
36.0
49.6
143 1
0.12
0.19
1.09
0.88
K 55.2
951
2642
3698
47.7
68.2
217 1
0.12
0.19
1.13
1.01
K 55.3
1347
4227
6604
68.2
93.0
434 1
0.13
0.19
1.23
1.53
K 85.1
3170
6604
9774
152
217
620 1
0.12
0.24
1.00
1.40
K 85.2
4227
10567
16907
174
248
1116 1
0.13
0.24
1.31
1.84
K105.1
5019
16643
26418
-
341
1736 1
-
1.76
3.23
DN50, 2"
DN80, 3"
DN100, 4"
[SCFM]
CIV
Nominal
size
DN25, 1"
[GPH]
TIV
Max. pressure loss
[psig]
1 P >7.4 psig
2 with TR float
3 4.4 psig with damping (gas measurement)
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)
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77
8 TECHNICAL DATA
H250 M40
H250/C - Ceramic/PTFE
Measuring span:
10 : 1
Flow values:
Values = 100%
Water: +20°C / +68°F
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Flow
Max. pressure loss
Water
Liner / Float
Nominal
size
DN15, ½"
DN25, 1"
DN50, 2"
DN80, 3"
DN100, 4"
Cone
PTFE
Air
Ceramic
[l/h]
PTFE
Water
Ceramic
PTFE
Air
Ceramic
PTFE
Ceramic
[mbar]
[Nm3/h]
E 17.2
25
30
0.7
-
65
62
65
62
E 17.3
40
50
1.1
1.8
66
64
66
64
E 17.4
63
70
1.8
2.4
66
66
66
66
E 17.5
100
130
2.8
4
68
68
68
68
E 17.6
160
200
4.8
6.5
72
70
72
70
E 17.7
250
250
7
9
86
72
86
72
E 17.8
400
-
10
-
111
-
111
-
E 27.1
630
500
16
18
70
55
70
55
E 27.2
1000
700
30
22
80
60
80
60
E 27.3
1600
1100
45
30
108
70
108
70
E 27.4
2500
1600
70
50
158
82
158
82
E 27.5
4000 1
2500
120
75
290
100
194
100
E 57.1
4000
4500
110
140
81
70
81
70
E 57.2
6300
6300
180
200
110
80
110
80
E 57.3
10000
11000
250
350
170
110
170
110
E 57.4
16000 1
-
-
-
284
-
-
-
E 87.1
16000
16000
-
-
81
70
-
-
E 87.2
25000
25000
-
-
95
85
-
-
E 87.3
40000 1
-
-
-
243
-
-
-
E 107.1
40000
-
-
-
100
-
-
-
E 107.2
60000 1
-
-
-
225
-
-
-
1 special float
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
Nl/h or Nm3/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)
78
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TECHNICAL DATA 8
H250 M40
H250/C - Ceramic/PTFE
Measuring span:
10 : 1
Flow values:
Values = 100%
Water: +20°C / +68°F
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Flow
Max. pressure loss
Water
Liner / Float
Nominal
size
DN15, ½"
DN25, 1"
DN50, 2"
DN80, 3"
DN100, 4"
PTFE
Cone
Air
Ceramic
[GPH]
PTFE
Water
Ceramic
PTFE
[SCFM]
Air
Ceramic
PTFE
Ceramic
[psig]
E 17.2
6.60
7.93
0.43
-
0.94
0.90
0.94
0.90
E 17.3
10.6
13.2
0.68
1.12
0.96
0.93
0.96
0.93
E 17.4
16.6
18.5
1.12
1.49
0.96
0.96
0.96
0.96
E 17.5
26.4
34.3
1.74
2.48
0.99
0.99
0.99
0.99
E 17.6
42.3
52.8
2.98
4.03
1.04
1.02
1.02
1.02
E 17.7
66.0
66.0
4.34
5.58
1.25
1.04
1.25
1.04
E 17.8
106
-
6.2
-
1.61
-
1.61
-
E 27.1
166
132
9.92
11.2
1.02
0.80
1.02
0.80
E 27.2
264
185
18.6
13.6
1.16
0.87
1.16
0.87
E 27.3
423
291
27.9
18.6
1.57
1.02
1.57
1.02
E 27.4
660
423
43.4
31.0
2.29
1.19
2.29
1.19
E 27.5
1056 1
660
74.4
46.5
4.21
1.45
2.81
1.45
E 57.1
1057
1189
68.2
86.8
1.18
1.02
1.18
1.02
E 57.2
1664
1664
111.6
124
1.60
1.16
1.60
1.16
E 57.3
2642
2906
155
217
2.47
1.60
2.47
1.60
E 57.4
4226 1
-
-
-
4.12
-
-
-
E 87.1
4227
4227
-
-
1.18
1.02
-
-
E 87.2
6604
6604
-
-
1.38
1.23
-
E 87.3
10567 1
-
-
-
3.55
-
-
E 107.1
10567
-
-
-
1.45
-
-
E 107.2
15850 1
-
-
-
3.29
-
-
1 special float
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)
07/2016 - 4000640704 - MA H250-M40 R04 en
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79
8 TECHNICAL DATA
H250 M40
H250H - Horizontal installation position
Measuring span:
10 : 1
Flow values:
Values = 100%
EN
DN15
DN25
DN50
DN80
DN100
ASME
Water: +20°C / +68°F
Cone
½
1"
2"
3"
4"
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Water [l/h]
Pressure loss
[mbar]
Air [Nm3/h]
K 15.1
70
1.8
195
K 15.2
120
3
204
K 15.3
180
4.5
195
K 15.4
280
7.5
225
K 15.5
450
12
250
K 15.6
700
18
325
K 15.7
1200
30
590
K 15.8
1600
40
950
K 15.8
2400
60
1600
K 25.1
1300
35
122
K 25.2
2000
50
105
K 25.3
3000
80
116
K 25.4
5000
130
145
K 25.5
8500
220
217
K 25.5
10000
260
336
K 55.1
10000
260
240
K 55.2
16000
420
230
K 55.3
22000
580
220
K 55.3
34000
900
420
K 85.1
25000
650
130
K 85.2
35000
950
130
K 85.2
60000
1600
290
K 105.1
80000
2200
250
K 105.1
120000
3200
340
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
Nl/h or Nm3/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)
80
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07/2016 - 4000640704 - MA H250-M40 R04 en
TECHNICAL DATA 8
H250 M40
H250H - Horizontal installation position
Measuring span:
10 : 1
Flow values:
Values = 100%
EN
DN15
DN25
DN50
DN80
DN100
ASME
Water: +20°C / +68°F
Cone
½
1"
2"
3"
4"
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Water [GPH]
Air [SCFM]
Pressure loss
[psig]
K 15.1
18.5
1.12
2.87
K 15.2
31.7
1.86
3.00
K 15.3
47.6
2.79
2.87
K 15.4
74.0
4.65
3.31
K 15.5
119
7.44
3.68
K 15.6
185
11.2
4.78
K 15.7
317
18.6
8.68
K 15.8
423
24.8
14.0
K 15.8
634
37.2
23.5
K 25.1
343
21.7
1.79
K 25.2
528
31.0
1.54
K 25.3
793
49.6
1.71
K 25.4
1321
80.6
2.13
K 25.5
2245
136
3.19
K 25.5
2642
161
4.94
K 55.1
2642
161
3.53
K 55.2
4227
260
3.38
K 55.3
5812
360
3.23
K 55.3
8982
558
6.17
K 85.1
6604
403
1.91
K 85.2
9246
589
1.91
K 85.2
15851
992
4.26
K 105.1
21134
1364
3.68
K 105.1
31701
1984
5.00
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)
07/2016 - 4000640704 - MA H250-M40 R04 en
www.krohne.com
81
8 TECHNICAL DATA
H250 M40
H250U - Vertical installation position
Measuring span:
10 : 1
Flow values:
Values = 100%
Flow direction
Vertical downwards
EN
DN15
DN25
DN50
ASME
Water: +20°C / +68°F
Cone
½"
1"
2"
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Water [l/h]
Pressure loss
[mbar]
Air [Nm3/h]
K 15.1
65
1.6
175
K 15.2
110
2.5
178
K 15.3
170
4
180
K 15.4
260
6
200
K 15.5
420
10
220
K 15.6
650
16
290
K 15.7
1100
28
520
K 15.8
1500
40
840
K 25.1
1150
30
97
K 25.2
1800
45
85
K 25.3
2700
70
92
K 25.4
4500
120
115
K 25.5
7600
200
172
K 55.1
9000
240
220
K 55.2
15000
400
230
K 55.3
21000
550
240
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
Nl/h or Nm3/h: Volume flow at standard (norm.) conditions 0°C - 1.013 bara (DIN 1343)
82
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07/2016 - 4000640704 - MA H250-M40 R04 en
TECHNICAL DATA 8
H250 M40
H250U - Vertical installation position
Measuring span:
10 : 1
Flow values:
Values = 100%
Flow direction
Vertical downwards
EN
DN15
DN25
DN50
ASME
Water: +20°C / +68°F
Cone
½"
1"
2"
Air: +20°C / +68°F, 1.013 bara / 14.7 psia
Water [GPH]
Air [SCFM]
Pressure loss
[psig]
K 15.1
17.2
0.99
2.57
K 15.2
29.1
1.55
2.62
K 15.3
44.9
2.48
2.65
K 15.4
68.7
3.72
2.94
K 15.5
111
6.20
3.23
K 15.6
172
9.92
4.26
K 15.7
291
17.4
7.64
K 15.8
396
24.8
12.3
K 25.1
304
18.6
1.42
K 25.2
476
27.9
1.25
K 25.3
713
43.4
1.35
K 25.4
1189
74.4
1.69
K 25.5
2008
124
2.53
K 55.1
2378
149
3.23
K 55.2
3963
248
3.38
K 55.3
5548
341
3.53
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI/VDE directive 3513.
Reference condition for gas measurements:
Flow measurements for gases are attributed to
SCFM or SCFH: Volume flow at standard (std.) conditions 15°C - 1.013 bara (ISO 13443)
07/2016 - 4000640704 - MA H250-M40 R04 en
www.krohne.com
83
© KROHNE 07/2016 - 4000640704 - MA H250-M40 R04 en - Subject to change without notice.
KROHNE – Process instrumentation and measurement solutions
•
•
•
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•
•
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Temperature
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Process Analysis
Services
Head Office KROHNE Messtechnik GmbH
Ludwig-Krohne-Str. 5
47058 Duisburg (Germany)
Tel.: +49 203 301 0
Fax: +49 203 301 10389
info@krohne.com
The current list of all KROHNE contacts and addresses can be found at:
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