Honeywell Enraf 973SR Tank level measuring gauge User Manual C MANUALS PDF 632 V10 WPD

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Instruction manual
973 SmartRadar LT
Version: 1.1
February 2002
Part no.: 4416.632_Rev 0
Enraf B.V.
P.O. Box 812
2600 AV Delft
Netherlands
Tel.: +31 15 2698600, Fax: +31 15 2619574
E-mail: Info@enraf.nl
http://www.enraf.com
Instruction manual 973 SmartRadar LT
Page 1
Copyright 2000 Enraf B.V. All rights reserved.
Reproduction in any form without the prior consent of Enraf B.V. is not allowed. This manual is for
information only. The contents, descriptions and specifications are subject to change without notice. Enraf
B.V. accepts no responsibility for any errors that may appear in this manual.
The warranty terms and conditions for Enraf products applicable in the country of purchase are available
from your supplier. Please retain them with your proof of purchase.
Page 2
Preface
Preface
This manual is intended for technicians involved in the commissioning and service of the Enraf series
973 SmartRadar LT gauge.
A description preceding the technical procedures gives the technical information necessary to understand its
functioning. It is recommended to read this description prior to performing any of the procedures.
For installation of the 973 SmartRadar LT, please refer to the Installation guides of the 973 SmartRadar LT
and SmartRadar Antennas. This manual describes the commissioning and service of the basic
973 SmartRadar LT level measurement. Other features such as level alarm output contact, verification pin
compensation, temperature measurement (spot or average), analog level output and pressure measurement
are described in separate manuals. For an overview, refer to the list of related documents in appendix D.
Legal aspects
The commissioning of and troubleshooting to the instrument may only be conducted by qualified engineers,
trained by Enraf and with knowledge of safety regulations for working in hazardous areas.
The information in this manual is the copyright property of Enraf B.V., Netherlands.
Enraf B.V. disclaims any responsibility for personal injury or damage to equipment caused by:
•
•
•
Deviation from any of the prescribed procedures
Execution of activities that are not prescribed
Neglect of the safety regulations for handling tools and use of electricity
EC declaration of conformity
This instrument is in conformity with the protection requirements of EC Council Directive 93/68/EEC.
The CE conformity marking fulfills the provision of:
• 89/336/EEC regarding EMC:
EN 50081-2 Generic Emission Standard
EN 50082-2 Generic Immunity Standard
• 73/23/EEC regarding Low Voltage Directive
• 94/09/EEC regarding ATEX
• 97/23/EEC regarding PED Directive
Additional information
Please do not hesitate to contact Enraf or its representative if you require any additional information.
Instruction manual 973 SmartRadar LT
Page 3
Table of contents
Table of contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1
Principle of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3
Optional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4
Remote monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5
Approvals (FM, Cenelec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.1
Safety aspects of the 973 SmartRadar LT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2
Personal safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3
Safety conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
Checks before starting the commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2
Introduction in programming the 973 SmartRadar LT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3
Connection of service tool Ensite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3.1
Communication via the Enraf field bus line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3.2
Communication via RS-232C or RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3.3
Communication via HART® signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3.4
Programming communication parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4
Programming the gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.1
Selecting dimension and decimal separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.2
Level start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.3
Level check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.4
Zones and threshold settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.5
Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.4.6
Ullage readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.7
Password protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4.8
Detection algorithm and special settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4.9
Additional adjustment with measurement on stilling well . . . . . . . . . . . . . . . . . . . . . . . 34
3.5
Data items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Service and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.1
SmartRadar LT layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.2
The instrument covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.3
Min max diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4
Alarm loop checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.5
Error codes and status information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.5.1
XPU-2 error code (item EP) of ICU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.5.2
APU warning code (item WC), error code (item EE) and status request (item QR)
of ICU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.5.3
DAB error code (item EB) and status request (item QH) of RFB-2/DAB board . . . . . . 42
4.6
Updating software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.6.1
Replacing software (EPROM) on ICU_HPO board . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.6.2
Replacing software (EPROM) on ICU_HPI board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.6.3
Replacing software (EPROM’s) on ICU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.6.4
Replacing software (EPROM) on RFB-2 / DAB board . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.6.5
NOVRAM init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.6.6
Download Antenna and RFB-2 parameters (if required) . . . . . . . . . . . . . . . . . . . . . . . 46
Page 4
Table of contents
Appendix A
Appendix B
Appendix C
Appendix D
Article and part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
ASCII table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Instruction manual 973 SmartRadar LT
Page 5
Introduction
Introduction
The Enraf 973 SmartRadar LT is a radar based level gauge. It is designed to measure the product level in
large storage tanks accurately and reliably.
The following options can be added to the basic SmartRadar:
• One hard alarm output contact, which can be linked to one of the four programmable alarms in the
instrument;
• An Infra-Red connector for the configuration tool 847 Portable Enraf Terminal;
• An intrinsically safe output to connect the 977 Tank Side Indicator.
Additional sensors can be connected to the SmartRadar when the optional ICU_HPI board is installed. This
provides the instrument inputs for:
• Spot temperature element (Pt100);
• HART channel for: Model 762, which is a converter for average product (and vapour) temperature
measurement (via MTT) with optionally an integrated water bottom probe;
• HART channel for: pressure transmitters for HIMS configuration or vapour pressure measurement
and for a side mounted water probe.
Standard, the SmartRadar is provided with Enraf field bus transmission for communication with remote tank
gauging systems. Optionally, the following output signals are available:
• Analog 4-20 mA level output with HART communication for other measured quantities (Enraf field bus
signal also available). This requires the optional ICU_HPO board;
• RS-232C or RS-485 serial communication (Enraf field bus signal not available). This requires the
optional ICU_RS232/485 board.
Basic
973 SmartRadar LT
Optional
Hard alarm output contact
Optional
IR connector for 847 PET (Portable Enraf Terminal)
Optional
Optional input board
ICU_HPI board:
- spot temperature element
- HART channel for 762
- HART channel for P1, P3
I.S. output for 977 TSI
(Tank Side Indicator)
Optional output board
ICU_RS232/485 board:
- RS-232C or
- RS-485
ICU_HPO board:
- HART output and/or
- analog 4-20 mA level output
1.1 Principle of measurement
The radar level gauge is a device that uses high-frequency (10 GHz) electromagnetic waves to determine
the distance from the radar antenna to the product surface.
The electro-magnetic wave is sent into the tank and reflected by the product.
As an electro-magnetic wave travels with the speed of light, this measurement can not simply be done on
the basis of time of flight. Instead, the phase difference between the transmitted and the received signal is
measured. The corresponding travelled distance can then be calculated from this phase relation.
This measurement principle is known as synthesized pulse radar (SPR).
Page 6
Introduction
In the 973 SmartRadar LT the microwave signal is generated and led, via the tank separator, to the antenna
(refer to figure 1.1).
The radar antenna shapes the beam and sends the signal into the tank. The microwave signal reflected
from the product is then received by the same radar antenna. The digital electronics in the SmartRadar LT
measure both the transmitted and the reflected signal.
After processing, the measured distance is converted into level data (innage or ullage) and made available
for field communication.
1.2 Configurations
The 973 SmartRadar LT is installed on the tank separator device.
The antenna is coupled to the 973 SmartRadar LT via the tank separator device. The tank separator
provides for adequate isolation between the tank contents and the electronics in the SmartRadar LT.
Refer to figure 1.1.
Depending on the application, different antennas and tank separators are to be used. The tank separator
adapts the different type of antennas.
Item
Description
SmartRadar LT
Tank separator
Antenna
For radar level measurement, tanks can be divided
into 3 groups:
•
•
•
Fixed-roof tanks; free space measurement
Tanks with a stilling well (fixed-roof and floatingroof tank); stilling well measurement
Spheres (high pressure applications); stilling
well measurement
Figure 1.2 gives an overview of the installation on the
different tank types.
Figure 1.1
Instruction manual 973 SmartRadar LT
973 SmartRadar LT configuration
Page 7
Introduction
ENRAF
Fixed roof tank;
Free space F08 antenna (8")
Fixed roof tank;
Free space T06/W06 antenna
on manhole
Floating roof tank;
stilling well sizes 6", 8", 10" or 12"
Pressurised tank;
4" stilling well
H04 antenna
Figure 1.2
Page 8
Installation overview
Fixed roof tank;
Free space D02 antenna (RoD)
Fixed roof tank;
stilling well sizes 6", 8", 10" or 12"
Pressurised tank;
4" stilling well
H04 antenna
Pressurised tank;
2" stilling well
H02 antenna
Introduction
1.3 Optional functions
Optional functions can be added in the SmartRadar LT.
The table below gives an overview of all options and related manuals.
Option
Board
Refer to
Level alarm output relay
(or digital output)
ICU
Instruction manual ICU Hard alarm output contact
(4416.633)
Analog level output (4 - 20 mA)
ICU_HPO
Instruction manual Temperature, Water bottom
and Analog output options
(4416.644)
Spot temperature measurement
ICU_HPI
Instruction manual Temperature, Water bottom
and Analog output options
(4416.644)
Average temperature measurement
and water bottom measurement
via Model 762
ICU_HPI
Instruction manual Temperature, Water bottom
and Analog output options
(4416.644)
Pressure measurement for mass,
density and/or vapour pressure
via HART protocol
ICU_HPI
Instruction manual HIMS / HTG and
vapour pressure (P3) measurement
(4416.645)
Water bottom measurement via
side mounted water probe
ICU_HPI
Instruction manual Temperature, Water bottom
and Analog output options
(4416.644)
RS-232C/RS-485 communication
ICU_ RS232/
485
Instruction manual 973 SmartRadar LT
RS-232/485 output communication
(4416.647)
HART communication
ICU_HPO
Instruction manual 973 SmartRadar LT
®
HART output communication
(4416.646)
1.4 Remote monitoring
Central monitoring of the SmartRadar is possible via tank inventory systems such as Entis Pro.
Remote display can be achieved using the 977 TSI Tank Side Indicator, the 877 FDI field indicator or the
878 CPI panel indicator.
1.5 Approvals (FM, Cenelec)
The Enraf 973 SmartRadar LT is an explosion proof instrument, which is designed to meet requirements of
CENELEC, Factory Mutual, and others. Measuring performance and data handling protocol meet API
requirements.
Instruction manual 973 SmartRadar LT
Page 9
Safety
Safety
2.1 Safety aspects of the 973 SmartRadar LT
Warning
Do not use the instrument for anything else than its intended purpose.
The housing of the 973 SmartRadar LT is explosion proof:
•
•
II 1/2 GD EEx d [ib] IIB T4; KEMA 00ATEX2010 certified by KEMA, Netherlands
Class I, Division 1, Groups B, C, D T4, according to NEMA Type 4
The covers of the SmartRadar LT are provided with blocking facilities which prevent unauthorised opening.
Optionally, programming the 973 SmartRadar LT can be done by the 847 PET (Portable Enraf Terminal),
which is an intrinsically safe device and is connected to the SmartRadar LT via an infra-red coupling.
Caution
The 973 SmartRadar LT is an explosion proof instrument with intrinsically safe output/input circuits.
Modification to the instrument may only be carried out by trained personnel that is authorised by Enraf.
Failure to adhere to this will invalidate the approval certificate.
The emitted microwave energy is far below the accepted limits for exposure of the human body. Depending
on the type of antenna, a maximum radiation of 0.1 mW/cm2 is generated.
2.2 Personal safety
The technician must have basic technical skills to be able to safely commission the equipment. When the
973 SmartRadar LT is installed in a hazardous area, the technician must work in accordance with (local)
requirements for electrical equipment in hazardous areas.
Warning
In hazardous areas it is compulsory to use personal protection and safety gear such as:
hard hat, fire-resistive overall, safety shoes, safety glasses and working gloves.
Avoid possible generation of static electricity. Use non-sparking tools and explosion-proof testers.
Do not open any of the instrument covers while power is still connected.
Make sure no dangerous quantities of combustible gas mixtures are present in the working area.
Never start working before the work permit has been signed by all parties.
Pay attention to the kind of product in the tank. If any danger for health, wear a gas mask and take all
necessary precautions.
Page 10
Safety
2.3 Safety conventions
"Warnings", "Cautions", and "Notes" are used throughout this manual to bring special matters to the
immediate attention of the reader.
•
•
•
A Warning concerns danger to the safety of the technician or user
A Caution draws attention to an action which may damage the equipment
A Note points out a statement deserving more emphasis than the general text, but not requiring a
"Warning" or "Caution"
Instruction manual 973 SmartRadar LT
Page 11
Commissioning
Commissioning
3.1 Checks before starting the commissioning
Examine the mechanical and electrical installation after the 973 SmartRadar LT is installed on the tank.
•
•
•
•
Check the connections of all electrical cabling
Check that all ground connections are made
Check that non-used cable inlets are sealed with appropriate stopping plugs
Close all covers carefully (mind O-rings) and apply power
3.2 Introduction in programming the 973 SmartRadar LT
The item concept
The 973 SmartRadar LT gauge is a field-configurable multi-processor instrument. This means that the
instrument can be totally programmed out in the field, or remotely, without opening the gauge.
All parameters, settings, etc. are accessible either via the optional PET (Portable Enraf Terminal) or
remotely with the service tool Ensite via so-called items.
These items all have unique 2-letter indexes which allow easy access and programming. Many indexes
associate with an abbreviation of the item description.
There are three different type of items:
Type of item
Description
Commands
These will force the gauge to execute a special task or function.
Example: EX (exit). After the EX command, the instrument starts initialising and
modified NOVRAM settings become active.
Data requests
Items for request of setup or measuring data from the gauge.
Example: JS will return the jumper setting on the ICU board. Some of the data
items are read-only.
NOVRAM Settings
All parameters which can be programmed and should not be lost after power
break
down, are stored in NOVRAM. The NOVRAM is a non-volatile RAM memory which
does not require battery back up.
Data stored in NOVRAM can be protected by a password and/or by the NOVRAM protect jumper
(refer to figure 3.1).
Protection levels are provided for all NOVRAM items, depending on the importance of an item. Protection
level 2 is protected by password 2 (W2) and protection level 1 is protected by password 1 (W1).
If the NOVRAM is protected by the NOVRAM jumper (jumper J3), level 2 data cannot be changed without
opening the gauge. Most data requests and commands are not password protected.
Protection level 1
Access to items which are not directly measurement related data, such as high level alarm (HA), tank
identifier (TI), etc. is protected by password 1 (W1). It is possible to modify these data only after entering the
correct level 1 password W1=XXXXXX, where XXXXXX is the level 1 password.
Password W1 itself can be read protected by means of jumper J1 on the ICU board.
Page 12
Commissioning
Protection level 2
All NOVRAM items which affect the (remote) level reading (such as reference level (RL) or transmission
address (TA)) are protected by password 2 (W2). It is possible to modify these data only after entering the
correct password W2=XXXXXX , where XXXXXX is the level 2 password. Additional measurement-related
items, such as temperature items can also be protected by password 2.
Password W2 itself can be read protected by means of jumper J2 on the ICU board.
In protection level 2, the items protected under protection level 1 can be also modified.
Figure 3.1 shows the jumper position on the ICU board. The
table below gives an overview of the ICU jumper functions.
function
position ”0”
position ”1”
J6
read password 1
not protected
protected
J5
read password 2
not protected
protected
J3
NOVRAM
protection
disabled
enabled
J3 ÷ J1
no function
J6
J5
J4
J3
J2
J1
jumper
Figure 3.1
Jumpers on ICU board
Indexed items
In general, items have only one setting (i.e. HA+026.0000). Indexed items have more than one setting
(elements). For instance: item OS (obstruction zone start position). Item OS has ten elements,
corresponding with the ten programmable obstruction zones.
OS
OS
OS
OS
OS
OS
OS
OS
OS
OS
element 0
element 1
element 2
element 3
element 4
element 5
element 6
element 7
element 8
element 9
Indexed items are requested by the two-character item name, followed by the element number and number
of elements to be requested, separated by dots.
In general:
XX.n.i
where: XX
For example:

OS.0.1
OS.1.1=+012.3400 
= two-character item name
= element number (starts with 0)
= number of elements (can be 1 or more, but maximum is 9)
requests the first obstruction zone start position;
programs the second obstruction zone start position.
Note:
Although it is possible to program more than one element at the time, it is not recommended. To avoid
mistakes, program only one element at the time.
Instruction manual 973 SmartRadar LT
Page 13
Commissioning
3.3 Connection of service tool Ensite
3.3.1 Communication via the Enraf field bus line
By default, the 973 SmartRadar LT is set on transmission address 00. The 973 SmartRadar LT, and also
other types of Enraf gauges, can be connected in parallel to the Enraf field bus line. Each instrument must
have its unique transmission address.
The items can be programmed using the Portable Enraf Terminal, which is connected via the optional Infrared connector. If this option is not present, items can be programmed remotely.
SmartRadar LT connected to an 858 CIU
Temporary disconnect the RS-232C connection from the Entis+ (or other host) and connect it to a service
PC where the service tool “Ensite” is running (refer to figure 3.2a).
Mind the relation for the transmission addresses per transmission line of the 858 CIU:
TL1 (addresses: 00 - 29), TL2 (addresses: 30 - 59), TL3 (addresses: 60 - 99)
The SmartRadar LT can be connected to the desired transmission line, although its address is still at
default. Thus a SmartRadar LT with default transmission address 00 can be connected to transmission line
2 (suitable for transmission addresses 30 - 59). Due to the mechanism that the request from the host (Ensite
service tool) is transmitted over all three transmission lines, the SmartRadar LT receives the commands.
However, when the SmartRadar LT is connected to transmission line 2 or 3, there is no response.
This concept only works if one new SmartRadar LT is powered with the default transmission address 00.
Also, there may not be an operational gauge with transmission address 00. If such a gauge exists, do switch
it off temporarily.
Continue with section 3.3.4, programming communication parameters.
SmartRadar LT connected to an 880 CIU Prime
HostPort 2 from the CIU Prime must be available for the connection of a service PC where the service tool
“Ensite” is running (refer to figure 3.2b).
To communicate via HostPort 2, the CIU Prime must be configured to CIU 858 emulation mode on
HostPort 2. If HostPort 2 is in use, temporary disconnect it and temporary re-configure the CIU Prime for
CIU 858 emulation via HostPort 2.
This concept only works if one new SmartRadar LT is powered with the default transmission address 00.
Also, there may not be an operational gauge with transmission address 00. If such a gauge exists, do switch
it off temporarily.
Continue with section 3.3.4, programming communication parameters.
SmartRadar LT connected to another type of host
Temporary disconnect the Enraf field bus line from the host.
Use a 847 PET (Portable Enraf Terminal) with optional RS-232C PET Interface as protocol converter
between Enraf field bus signal and RS-232C to the service PC where the service tool “Ensite” is running
(refer to figure 3.2c).
This concept only works if one new SmartRadar LT is powered with the default transmission address 00.
Also, there may not be an operational gauge with transmission address 00 connected to the Enraf field bus
line. If such a gauge exists, do switch it off temporarily.
Continue with section 3.3.4, programming communication parameters.
Page 14
Commissioning
to Entis Pro
and/or other host(s)
PC
running
'Ensite'
to Entis +
or other host
880 CIU Plus
RS-232C
880 CIU Prime
PC
running
'Ensite'
PC
running
'Ensite'
RS-232C
CIU
Mains
adapter
RS-232C
PET interface
PET
Enraf
Communications Interface Unit
ENRAF
TL1: transm. addr. 00-29
TL2: transm. addr. 30-59
TL3: transm. addr. 60-99
Enraf
field bus line
CIU 858
4x Enraf field bus lines
3x Enraf field bus lines
a) With 858 CIU
Figure 3.2
b) With 880 CIU Prime
c) With other type of host
Different connections to Enraf field bus line
3.3.2 Communication via RS-232C or RS-485
RS-232C
Connect the RS-232C transmission line from the SmartRadar LT to a service PC where the service tool
“Ensite” is running (refer to figure 3.3a). Default baud rate for RS-232C is 19200 baud.
Continue with section 3.3.4, programming communication parameters.
RS-485
Connect the RS-485 transmission line (eventually via an RS-485 / RS-232C converter) to a service PC
where the service tool “Ensite” is running (refer to figure 3.3b).
Default baud rate for RS-485 is 19200 baud.
When more than one gauge is connected to the same transmission line (multi drop mode), make sure that
only one new SmartRadar LT is powered with the default transmission address 00. Also, there may not be
an operational gauge with transmission address 00. If such a gauge exists, do switch it off temporarily.
Continue with section 3.3.4, programming communication parameters.
3.3.3 Communication via HART ® signal
The SmartRadar LT can be configured to give a 4 - 20 mA level output. In this mode it is possible to
®
configure the SmartRadar LT via the HART communication protocol.
®
®
Connect the HART transmission line via a HART modem to a service PC where the service tool “Ensite”
is running (refer to figure 3.3c).
®
A maximum of 15 SmartRadar LT’s with HART output signal can be connected in parallel (multi drop
®
mode); each gauge having a unique HART communication address from 1 to 15.
When more than one gauge is connected to the same transmission line (multi drop mode), make sure that
only one new SmartRadar LT is powered with the default communication address 0.
Continue with section 3.3.4, programming communication parameters.
Instruction manual 973 SmartRadar LT
Page 15
Commissioning
Host
(4-20 mA or HART ® )
Host (RS-485)
PC
running
'Ensite'
PC
running
'Ensite'
HART ®
modem
RS-232C/
RS-485
converter
RS-232C
PC
running
'Ensite'
250 W
RS-232C
HART
RS-485
To one
SmartRadar LT
To one (or more)
SmartRadar LT
a) RS-232C communication
Figure 3.3
To one (or more)
SmartRadar LT
b) RS-485 communication
c) HART ® communication
RS-232C / RS-485 and HART connections
3.3.4 Programming communication parameters
Start up the Ensite service tool and make contact with the SmartRadar LT to be configured. It is not
recommended to make a site scan, as the transmission address is still to be changed.
Therefore, to make contact with the gauge, set the address manually in the port settings. This is only
possible if the ExtendedSetup line in the ‘ENSITE.ECS’ file (in subdirectory ECS) is set to: True.
File
Edit
Search
[ ]
Baudrate
( )
150
( )
300
( )
600
( ) 1200
( ) 2400
( ) 4800
( ) 9600
( ) 19200
Baud
Baud
Baud
Baud
Baud
Baud
Baud
Baud
Instruments
Options
Windows
Help
15:23:18
Communication dialog [ENSITE.ECS]
Communication- and protocolparameters
Port
Parity
Databits
Stopbit(s)
( ) No
( ) 5
( ) 1
( ) Com 1
( ) Odd
( ) 6
( ) 2
( ) Com 2
( ) 7
( ) Com 3
( ) Even
( ) Mark
( ) 8
( ) Com 4
( ) Space
( ) Com 5
( ) Com 6
( ) Com 7
Timeout
3500
(ms)
( ) Com 8
Turn around delay
(ms)
Retries
Prefix:

Suffix:

Safe
OK
Cancel
Select this window by: Set up, Port settings, and go by mouse (or with the ‘TAB‘ key) to the Baud rate.
®
Select 1200 baud when communicating via Enraf field bus and HART ;
select 19200 baud when communicating via RS-232C or RS-485.
Select the used comport on the service PC.
Then go to the line: Prefix.
When communication via 858 or 880 CIU’s, fill the desired CIU address (in the example above, it is 0).
When communicating via RS-232C / RS-485, default the CIU emulation address is disabled. Hence, delete
the part with the CIU address (delete: “  “).
®
When communicating via HART , delete the part with the CIU address. Make transmission address 00:
 to communicate with the gauge set on default address. Click on OK.
Page 16
Commissioning
For remote transmission, the items TA and TI must be programmed and items GT and TS should be
checked. All these items reside under protection level 2. Proceed as follows:
Item
Name
Description
W2=
Protection level 2
Enter password 2. Default level 2 password: ENRAF2
TA= Transmission address
TI=
EX
Tank identifier
Two digits. Enter the desired transmission address. If gauges
are connected in parallel to the transmission line, each gauge
must have its unique transmission address. Mind the address
relation when connected to an 858 CIU:
CIU highway Transmission
address (TA)
TL 1
00 - 29
TL 2
30 - 59
TL 3
60 - 99
6 Characters; program the tank name into TI (spaces are not
allowed). This name is used as subdirectory name in the Ensite
service tool to store information (log file, reflection diagram,
etc.) on the hard disk.
GT= Gauge type
1 Character. GT represents the type of instrument.
For 973 SmartRadar LT, GT is B.
TS= Transmission speed
4 Characters.
For Enraf field bus line TS is 1200 (default) or TS is 2400 baud.
For HART communication, TS remains on 1200 (default).
For RS-232C or RS-485 communication, TS is default 19K2
and can be set lower to: 9600, 4800, 2400 or 1200 baud.
Exit
Exit protection level. After the exit command, the 973
SmartRadar LT will perform a controlled software reset and all
changes made will be effective after start-up.
Example:
The SmartRadar LT on tank 102 will get transmission address 42. The gauge should be programmed
as follows:
Item (+setting)
Description
W2=ENRAF2
TA=42
TI=TNK102
GT
TS





EX

Enter password 2 (ENRAF2 is default level 2 password)
Transmission address equals to 42
Tank identifier.
Check whether the gauge type item is correct; if not, change it.
Check whether the transmission speed item is correct; if not,
change it.
Exit protection level.
As the transmission address (and perhaps also the baud rate) is changed, the service tool Ensite must be
adapted to the new conditions. That can be done as described earlier, or a ‘site scan’ can be made.
Instruction manual 973 SmartRadar LT
Page 17
Commissioning
3.4 Programming the gauge
The 973 SmartRadar LT is pre-programmed at the factory. Depending on the application, a number of
additional parameters have to be set.
Note:
The items described in this section are typical for the basic 973 SmartRadar LT.
For the optional functions / boards such as: level alarm relay output, verification pin compensation, spot
temperature measurement, average temperature measurement, analog level output and HIMS
(Hybrid Inventory Management System) please refer to the applicable option manuals.
Step 1:
Collect the required data (such as radar position height, maximum safe fill height,
alarm settings, etc.) on a piece of paper. Refer to 'Commissioning form 973
SmartRadar LT' supplied with each gauge.
Step 2:
Proceed with programming / checking of each item for the standard gauge
without optional functions (level start-up, zones / thresholds and alarm setting).
Step 3:
Check the identification code on the label of the 973 SmartRadar LT to determine
whether the gauge is equipped with one or more optional functions, and program
the items for these options.
In the following sections, the items are listed that as a minimum should be programmed (checked) during
commissioning of the level part of the SmartRadar. Commissioning is divided into the following steps:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Page 18
Selecting dimension and decimal separator (section 3.4.1)
Level start-up (section 3.4.2)
Level check (section 3.4.3)
Zones and threshold settings (section 3.4.4)
Level alarm settings (section 3.4.5)
Ullage readout (section 3.4.6)
Password protection (section 3.4.7)
Options (refer to the option manual(s) of the installed options)
Commissioning
3.4.1 Selecting dimension and decimal separator
When one or more dimension items are changed, all items with related formats will be automatically
changed and the values will be automatically converted to the new dimension. The same applies for the
decimal separator. The SmartRadar LT can be completely programmed in another dimension than it is
intended to operate in. Just change the item LD (and any other dimension items).
Item
Name
Description
W2=
Protection level 2
Enter password 2 (default password: ENRAF2)
LD= Level dimension
Selects and converts the level dimension. This item contains
one character, which can be:
M : metres;
format: sign X X X separator X X X X
F : feet;
format: sign X X X X separator X X X
I : inches;
format: sign X X X X X separator X X
P : fractions; format: sign X X ' X X " X X
DP= Decimal separator
The item DP (decimal separator) can be:
. : point or
, : comma.
Exit
EX
Exit protection level
Standard formats
There are two standard formats; these formats are:
•
•
Standard floating point format:
Standard power format [dB]:
where:
sign point M M M M M M M M E sign P P
sign X X X X point X
M = mantissa
P = exponent
X = value in decibel
Instruction manual 973 SmartRadar LT
Page 19
Commissioning
3.4.2 Level start-up
Refer to figure 3.4 for level start-up tank parameters.
To get the level from the gauge without any compensation enabled, only the following items should be
programmed.
H04 antenna
Radar reference
OR
Radar reference
AB
Radar reference
AU
Maximum
Safe fill height
PR
H02 antenna
Level
Radar reference
SF
RL
Radar reference
Tank zero
Figure 3.4
Level start-up tank parameters
Radar reference:
The radar reference (zero point for the radar gauge measurement) for the RoD antenna and the planar
antenna’s is the roof nozzle position (refer to figure 3.4).
For the H04 antenna, the radar reference point is located at the flange of the tank separator.
For the H02 antenna, the radar reference point is located at the top of the antenna/tank separator flange.
If the 973 SmartRadar LT is equipped with a stilling well antenna model, item BD should be programmed. In
all other cases skip this item and start from item OM.
Page 20
Commissioning
Item
Name
Description
W2=
Protection level 2
Enter password 2 to alter the required settings.
EX
BD= Stilling well diameter
Floating point format; units: metres.
This item contains the internal diameter of the stilling well
(only if the SmartRadar LT is installed on a stilling well).
OM= Radar operational mode
This item contains one character, which determines the
operational mode and depends on the antenna.
F for free space measurement;
S for stilling well measurement;
PR= Position radar
Format according to item LD. Default: +027.0000 (m).
This item represents the vertical distance from the Radar
reference point to the tank zero (mostly the datum plate). When
not exactly known, estimate the distance within ±1 metre (3 ft).
When setting the SmartRadar LT reference level
(see section 3.4.3), the value in item PR is overwritten.
SF= Maximum safe fill height
Format according to item LD. With this item the gauge checks if
the programmed upper measuring range is valid.
The following relation is valid: SF < (PR - AU).
If a conflict is detected, a warning is given (EE: 07901).
AB= Nozzle length
Format according to item LD. Default: +000.0000 (m).
Give in this item the nozzle length. When the antenna is
installed inside the nozzle, a correction is automatically applied.
OR= Offset to roof
Format according to item LD. This items represents the
average distance from the radar nozzle to the roof.
The SmartRadar LT uses this information to determine the
position of double reflections (product surface - roof - product
surface - antenna).
4V= Level calc. decision switch
This item contains 10 positions. The 7th position enables or
disables the AdvancedDSP routines:
F enables AdvancedDSP level calculation
- disables AdvancedDSP level calculation
Refer to section ‘AdvancedDSP level calculation routine’ for
information when to enable it, and to section 3.4.8 for other
settings of item 4V.
AC= Averaging constant
Two digits, default value: 70.
Averaging constant for output filter of radar innage (item RI)
and radar ullage (item RU) value.
The higher the value for item AC, the more damping on the
radar innage and radar ullage values.
Exit
After the exit command, the 973 SmartRadar LT will perform a
controlled software reset, and start up with disabled access to
protected levels.
Instruction manual 973 SmartRadar LT
Page 21
Commissioning
AdvancedDSP level calculation routine
Under certain installation conditions, the product level calculation can be done more accurately when the
AdvancedDSP level calculation routine is enabled.
In that case the calculated level is less sensitive for obstructions in the microwave path, like equalisation
holes in stilling well, welding seams and multipath effect from tank shell. Make sure that obstruction zones
are well defined (refer to section 3.4.4: Obstruction reflections).
It is advised to enable AdvancedDSP level calculation with the following antenna installation conditions:
• F08 antenna
: when distance to tank shell is less than 0.15 times tank height;
• W06 and T06 antenna : when distance to tank shell is less than 0.1 times tank height;
• Stilling well antenna
: always;
• RoD antenna
: always.
3.4.3 Level check
Refer to figure 3.4. Check if there is a valid level reading. It is no problem if the value is incorrect, as long as
there are no error status messages. Two common error status messages are discussed below.
1) Level reading 999999999 with level status FL. Check error code item EE (this is an indexed item!).
If EE reads 07901, the maximum safe fill height (item SF) is set too high. Request for the “Antenna
minimum ullage“ (item AU). The following relation is valid: SF + AU < PR.
Either distance PR is not correct or the maximum safe fill height (SF) is too large for this installation.
2) If there is a “Warning code” present, check warning code item WC (this is an indexed item!).
If WC reads 07000, the reflected signal is not so strong that its peak rises above a threshold setting.
Lower the product zone threshold (or another zone threshold where the peak is found). Refer to section
3.4.4 for more information on zones and thresholds.
Item
Name
Description
W2=
Protection level 2
Enter password 2 (default password: ENRAF2)
RL= Reference level
Format according to item LD. The reference level is the actual
level in the tank (obtained from e.g. manual dip)
EX
Exit
With the exit command, the actual level value in item RL is
written in NOVRAM. Only then the value of item RL will be used
with the next AR command
W2=
Protection level 2
Enter protection level 2 (default password: ENRAF2)
CM
Commissioning mode
Enter the commissioning mode to accept the reference level
AR
Accept reference
With this command, the 973 SmartRadar LT accepts the value
of the reference level and internally re-calculates the distance:
radar position (item PR). After the controlled reset, by the EX
command, the level reading is available.
Exit
Exit protection level
EX
With this procedure, the 973 SmartRadar LT now measures the level value, given in item RL, and all relative
level changes will be followed by the instrument.
Page 22
Commissioning
3.4.4 Zones and threshold settings
The tank height is divided into 3 measuring zones: Antenna zone, Product zone and Bottom zone.
In addition, ten obstruction zones can be programmed. Refer to figure 3.5.
Please note that the X-axis from figure 3.5 indicates ullage. The zero point on the X-axis represents the
"Radar reference". This is in most cases the nozzle height, with respect to the tank zero, on which the
antenna is mounted (item PR; position radar). Refer also to figure 3.4.
Warning
The product reflection in the area “Antenna minimum ullage” will be indicated as product level
with reduced accuracy and with warning code 7013: ‘level above measuring range’.
Do not use this area as normal operational area because of the chance for a tank overflow.
The antenna is located inside the antenna minimum ullage area. In this area, reflections from the antenna
will decrease to almost zero at 0.5 to 2 metres distance from the antenna surface (depending on the type of
antenna).
Signal
strength
[dB]
Radar reference
Antenna
minimum
ullage
Antenna
zone
length
Antenna
surface
AZ
Threshold
Antenna zone
ZA
Threshold Product zone ZP
Threshold
Bottom zone (ZB)
Bottom zone
offset BZ
Product zone
SF
Antenna
min. ullage
Antenna
zone length
Product zone
Tank
zero
Ullage
Bottom zone
AZ
Radar reference
BZ
Bottom zone
0.44 m*
*) 3x Fourier distance
Figure 3.5
Zones and thresholds
Figure 3.6 shows a so-called reflection diagram.
The reflection diagram can be made with the Enraf service tool ”Ensite”.
Not all reflections in the reflection diagram are selected as possible peak for the product level. A first
selection can be made by the threshold in each of the three zones. The thresholds should be set such that
noise is filtered out. Only the peaks above a threshold setting are selected as possible product peak.
The antenna zone length (item AZ) covers the area where antenna reflections are low but still present.
The antenna zone threshold should cover the most of the antenna reflections.
The antenna zone length does not need to extend till the antenna reflections are completely zero; only
until the higher reflections are covered, such as those which might be expected in the product zone.
Refer to example of reflection diagram in figure 3.6.
Instruction manual 973 SmartRadar LT
Page 23
Commissioning
SmartRadar Refl. Diagram.
[dB]
Min. Ull
Max. SF.
TI : TK-200
08-11-1996 12:31
BA417-1899001-D0
File: TK-20000.RD3
SN:.18739640023
7.450
90
Tank
Zero
80
70
60
RB
Product
reflection
50
40
Antenna zone
threshold
30
Product zone
threshold
ZA
20
Antenna
position
ZP
ZB
10
Figure 3.6
Bottom zone
threshold
10
14
12
[m]
Reflection diagram
The area between antenna zone length and the bottom zone is called "product zone". The product zone
threshold can be set with item ZP.
The bottom zone is defined around tank zero. With bottom zone offset (item BZ) the position above tank
zero is defined where the product zone ends and the bottom zone begins. The bottom zone extends three
Fourier distances under tank zero (approximately 0.44 m).
The bottom zone definition is important in applications where the bottom can be seen through the product in
the reflection diagram. At a low product level both the product reflection and the bottom reflection will then
be present and the bottom reflection can be the strongest. In that case the bottom zone offset must be set
large enough to make sure that when the tank is emptying the product peak enters the bottom zone first,
before the bottom reflection enters the bottom zone. The bottom reflection peak enters the bottom zone in
the opposite direction and the peaks merge when the tank gets empty.
Tank zero
The low speed of the radar signal through the liquid column
gives the impression that the bottom looks further away than it
really is. When the tank is emptying the bottom appears to
rise. Figure 3.7 gives an example of such a situation. Item BZ
should be set to a value of 0.6 to 1.0 metres (2' to 3' 4").
Product
peak
When measuring the roof of a (internal) floating roof tank, the
mechanism of searching for a smaller peak in front of a larger
peak in the bottom zone is disabled. By setting the third
nd
element in item 4S (2 level calculation decision switch) to ‘R’
you can declare the floating roof application.
ZB
0.6 m
Reflections beyond the bottom zone are ignored for level
detection. The bottom zone threshold can be set with item ZB.
[m]
Figure 3.7
Page 24
Bottom
peak
Bottom reflection and bottom
zone adjustment
Commissioning
Changing the settings for the zones and thresholds should be done, on the basis of information from a
reflection diagram. Refer to manual of the Ensite service tool, for a description how to obtain a reflection
diagram.
It should be common practice at installation of the 973 SmartRadar LT gauge to make a reflection diagram
and, if necessary, adjust the zones and threshold settings.
Item
Name
Description
W2=
Protection level 2
Enter password 2
EX
AZ= Antenna zone length
Format according to item LD. If necessary, the antenna zone
length can be altered.
BZ= Bottom zone offset
Format according to item LD. As a default, the bottom zone
starts 0.3 m above tank zero. Item BZ specifies this start
position. If the bottom position is not exactly known, do not alter
item BZ. However, set the bottom zone offset to a larger value
when there is a strong bottom reflection.
ZA= Antenna zone threshold
Format according to standard power format (dB). If required,
the threshold of the Antenna zone can be altered with this item.
Be sure to set the threshold above the antenna reflections.
ZP= Product zone threshold
Format according to standard power format (dB). The product
zone threshold should be set such that:
• product reflections are passed, and
• small meaningless peaks (noise) are suppressed.
It is not meant to block obstructions; these are eliminated (not
selected as product peak) by the peak detection software.
ZB= Bottom zone threshold
Format according to standard power format (dB). The bottom
zone threshold should be set such that:
• product reflections are passed, and
• small meaningless peaks (noise) are suppressed.
It is not meant to block a bottom reflection; the bottom reflection
will be identified by the peak detection software.
Exit
Exit protection level
The peak detection software keeps a list of maximum 15 detected peaks above the threshold zones, from
which one of them is the product peak. The number of detected peaks and their position and strength can
be requested by the data items: 5C, 5D and 5E.
Instruction manual 973 SmartRadar LT
Page 25
Commissioning
Item
Name
Description
FC
Freeze RSP data
The freeze Radar Signal Processing data is a command that
stores all relevant radar processing data in RAM memory.
Wait approximately 5 seconds before requesting the next
data.
5C
Number of peaks above threshold This item contains the number of peaks above the threshold
settings. The maximum number is 15; when more peaks are
detected, only the 15 strongest peaks are listed.
5D.0.1
Position of detected peaks
Format according to item LD (indexed item; 15 elements).
Each element contains the distance from the radar
reference position to the detected peak.
5E.0.1
Amplitude of detected peaks
Format according to standard power format (dB)
(indexed item; 15 elements).
Each element contains the amplitude of the corresponding
peak in item 5D.
When obstructions are expected and there cannot be made a reflection diagram, these items are very
helpful to select the obstruction zones. However, the best results can be obtained from the information of a
reflection diagram.
Obstruction reflections
Objects that are in the microwave path will cause reflections. All reflections from objects other than the
product surface are called: ‘obstruction reflections’.
Note:
In the reflection diagram you will probably also see second order reflection peaks, found at double
distance.
Obstruction reflections can be caused by heating coils, welding seams from tank shell or stilling well, etc.
Special examples of obstruction reflections are the antenna reflection and the bottom reflection.
Obstruction reflections can influence the level measurement:
• When an obstruction reflection is detected above the zone threshold, it becomes a candidate for the
selection of the level peak. This is not a problem, as the peak detection software can handle this.
• When the product peak approaches an obstruction peak, the two peaks will influence the calculation
of their positions. The influence starts when the peaks are 0.4 m (16 ") apart. The obstruction reduces
the accuracy of the calculated level position. In many cases this is a one-side phenomenon, where
the obstruction reflection disappears as the product submerges the reflecting object.
• The AdvancedDSP level calculation is less sensitive for the presence of an obstruction reflection. But
the inaccuracy of the normally calculated level position may cause a jump of the AdvancedDSP level
19
of 15 mm ( /32 "). These jumps can be prevented by declaring an obstruction zone around the
position of the obstruction peak.
The SmartRadar software provides for setting of obstruction zones and obstruction threshold for each zone.
This can be used to prevent obstruction reflections from appearing in the list of detected peaks. From the list
of detected peaks the product level peak is selected. As explained above, the peak detection software can
cope with the presence of obstruction reflections without the obstruction zone settings.
However, it is advised to define obstruction area’s around obstruction peaks when the AdvancedDSP level
calculation is used. It is then not required to set obstruction thresholds; only the zone definition is required.
Page 26
Commissioning
Figure 3.8 shows a Reflection Diagram in which an obstruction is found at approximately 8 m level
(6.25 m ullage). The product reflection is found at approximately 3.8 m level (10.44 m ullage).
In this example, the following settings should be selected:
Obstruction zone start at 5.85 m ullage (at least 0.4 m before the obstruction reflection).
Obstruction zone end at 6.65 m ullage (at least 0.4 m after the obstruction reflection).
Obstruction zone threshold at 5 dB.
Item
Name
Description
W2=
Protection level 2
Enter protection level 2
OS.0.1= Obstruction zone 1 start
Format according to item LD.
In the above example, obstruction zone 1 start should be
programmed as 5.85 m (OS.0.1=+005.8500)
OE.0.1= Obstruction zone 1 end
Format according to item LD.
In the above example, obstruction zone 1 end should be
programmed as 6.65 m (OE.0.1=+006.6500)
OT.0.1= Obstruction zone 1 threshold
Format according to standard power format (dB).
In the above example, the threshold of obstruction zone 1 is set
at 5 dB (OT.0.1=+0005.0)
Enable / disable obstr. zones
OZ=
EX
Exit
Ten ASCII characters; either E (enable) or D (disable) the
obstruction zone. For example: OZ=EDDDDDDDDD
enables the first obstruction zone
Exit protection level
SmartRadar Refl. Diagram.
[dB]
Min. Ull
Max. SF.
TI : TK-200
08-11-1996 12:32
BA417-1899001-D0
File: TK-20006.RD3
SN:.18739640023
10.443
90
Tank
Zero
80
70
60
RB
Product
reflection
50
Obstruction
reflection
40
30
ZA
20
OT.0.1
ZP
OS.0.1
10
Figure 3.8
OE.0.1
ZB
10
12
14
[m]
Example of determining the position of an obstruction zone
Instruction manual 973 SmartRadar LT
Page 27
Commissioning
It is advised to use obstruction area’s for recognizable obstruction peaks that stay below the zone threshold
(for instance: welding seams from the tank shell or stilling well, or roof truss). Obstructions from welding
seams can be recognized as they appear at regular intervals. Refer to figure 3.9.
Select the peaks in the reflection diagram, which are known to be caused by an obstruction.
Mark the obstructions with an obstruction zone. The length of the obstruction zone should be at least 0.8 m.
As the bottom reflection and the antenna reflection belong to the obstructions, it is advised to define
obstruction zones in front of the antenna position and the bottom position.
For the AdvancedDSP level calculation, the obstruction threshold should be set below the product threshold
(e.g. at 5 dB).
SmartRadar Refl. Diagram.
[dB]
Min. Ull
Max. SF.
TI : TNK-42
15-01-1999 12:57
BA417-1899001-D1
File: TSS_032.RD3
SN:.18739717004
9.804
90
Tank
Zero
80
70
60
RB
50
40
30
ZA
ZP
20
10
Figure 3.9
ZB
OT0
OT1
OT2
OT3
OT4
10
12
14
[m]
Example of reflection diagram with obstructions marked for AdvancedDSP
The reflection diagram in figure 3.9 shows three obstructions at equal distances. It can therefore be
assumed that there is a fourth obstruction (at approximately 11 metres ullage), though not visible in this
diagram because it is submerged. For a clear overview of all obstructions, it is recommended to make a
reflection diagram when the tank is empty.
Page 28
Commissioning
3.4.5 Alarm settings
Refer to figure 3.10. High level alarm (HA) and low level alarm (LA) conditions are transmitted to the host
via the communication lines.
SF
AH
HA
AH
LL
HH
LA
Tank zero
Figure 3.10
Alarm settings
Item
Name
Description
W2=
Protection level 2
Enter password 2 (default password: ENRAF2)
EX
AH= Level alarm hysteresis
Format according to item LD. Sets alarm hysteresis
HA= High level alarm
Format according to item LD. High level alarm set point.
HH= High high level alarm
Format according to item LD. High high level alarm set point.
LA= Low level alarm
Format according to item LD. Low level alarm set point.
LL= Low low level alarm
Format according to item LD. Low low level alarm set point.
Exit
Exit protection level
Instruction manual 973 SmartRadar LT
Page 29
Commissioning
3.4.6 Ullage readout
The two items described in this section need only be programmed, when ullage readout is required.
Refer to figure 3.11.
UR
Tank zero
Figure 3.11
Upper reference value
Item
Name
Description
W2=
Protection level 2
Enter password 2 (default password: ENRAF2)
UR= Upper reference
Format according to item LD.
The upper reference value is only used when 'Ullage' is to be
read from the 973 SmartRadar LT gauge. The ullage is then
calculated as: UR - 973 measured level
DE= Level type
One ASCII character.
DE = I for innage (default setting)
DE = U for ullage
EX
Page 30
Exit
Exit protection level
Commissioning
3.4.7 Password protection
Item
Name
Description
W2=
Protection level 2
Enter password 2 (default password: ENRAF2)
EX
W1= Password 1
6 Characters, default value W1=ENRAF1. This password can
be read protected by jumper J1 on the ICU board. If this jumper
is set to position 1, the password can not be read
W2= Password 2
6 Characters, default value W2=ENRAF2. This password can
be read protected by jumper J2 on the ICU board. If this jumper
is set to position 1, the password can not be read
DY= Display selection
One ASCII character.
For the 973 SmartRadar LT (which has no local display) item
DY must be set to N.
Exit
Exit protection level.
3.4.8 Detection algorithm and special settings
Presentation of the measured level is the result of a two stage process:
• stage 1: detection
• stage 2: acceptance
Detection
The detection operates on the last radar signal captured. First peaks are detected that are above the
thresholds (items ZA, ZB and ZP). When there are peaks found, the level peak is selected from the list of
detected peaks (items 5D and 5E).
Special fuzzy logic is built in, to select the level peak from the set of detected peaks. It is important to know
that the fuzzy logic makes use of pattern recognition. Especially at very high levels it looks for patterns with
second or third order echo's. In free-space applications such echo's result from reflections against the roof
of the tank. Knowledge about he position of the roof is therefore important. Therefore, the distance from the
nozzle to the roof must be declared in item OR.
Acceptance
Acceptance operates around an authorised gauge level value and the ‘low product delay counter’ value.
The low product delay counter value can be set with item FI (default value: 75; maximum value: 99).
When an authorised gauge level is present, the value is used as the acceptance criterium for the level peaks
presented by the detection stage.
Successful acceptance of the latest level peak is used to update the authorised gauge level value.
Consecutive rejection of level peaks and / or absence of level peaks over a number of measurements equal
to the number in the low product delay counter, will result in discarding the authorised gauge level value.
When the value is discarded, the last valid value is available as level value over a period of 30 seconds.
When there is no authorised gauge level value, the level peaks presented by the detection stage are used to
built up the evidence needed to arrive at a new authorised gauge level value. A level must be present, at
least intermittent, over a number of measurements equal to the low product delay counter, before it can
become authorised.
Instruction manual 973 SmartRadar LT
Page 31
Commissioning
Item
Name
Description
W1=
Protection level 1
Enter password 1
Low product reflection warning
delay counter
Two digits; default value: 75. The maximum value is 99 and
then the delay is approximately 1 minute. During the delay, the
last valid measured level is transmitted as the product level.
Exit
Exit protection level
FI=
EX
Reduced accuracy
Obstructions in the tank may produce reflections. When the level reflection is in the neighbourhood of an
obstruction reflection the accuracy of the obtained level reading is reduced. The software provides for
entering data to describe obstruction zones. See items OS, OE, OT and OZ. This can be used to detect that
the level reflection is in an obstruction zone. When in addition level calculation decision switch item 4V
position 2 is set to 'O', a reduced accuracy warning will be set if the level reflection is in an obstruction zone.
When the level is in the bottom zone, a bottom reflection may reduce the accuracy of the level reading.
When the level calculation decision switch item 4V position 1 is set to 'B' , a reduced accuracy warning will
be produced if the level is in the bottom zone.
Peak selection with roof reflector
With light products it is possible to have a reflection from the tank bottom, specially at lower level through
the product. Therefore, there is a routine that in the bottom zone is searched for a smaller peak in front of
the highest peak, which is caused by the bottom.
However, when a roof reflector is used it is impossible to look through the product. That information is given
in item 4S, second position.
Item
Name
Description
W2=
Protection level 2
Enter password 2
4V= Level calculation decision switch
Page 32
Ten characters; default setting: - - - - - - - - - Pos. Char.
Function
B Reduced accuracy if level peak in bottom zone
- No reduced accuracy if level peak in bottom zone
O Reduced accuracy if level peak in obstruction zone
- No reduced accuracy if level peak in obstruction
zone
D Double reflection detection enabled (always)
S Reduced accuracy if level peak detected above
the maximum safe fill height (item SF)
- No reduced accuracy in the above situation
P Search for product peak before bottom reflection
(always)
- Not used
F Enables AdvancedDSP level calculation
- Normal level calculation
8 - 10 - Not used.
Commissioning
4S= 2nd Level calc. decision switch
EX
Exit
Ten characters; default setting: - - - - - - - - - Pos. Char.
Function
- Normal communication mode
(other settings are used for broadcast mode)
P Plain selection of peaks (only for internal testing)
- Intelligent peak selection
R Measurement by means of roof reflector
- Measurement direct on product
4 - 10 - Not used
Exit protection level.
Possibility of peak selection dilemma after gauge startup
It is theoretically possible after a gauge startup, that two peaks are detected of which the second peak is at
a double distance with respect to the first peak. The second peak might be a second order echo, in which
case the first peak is the level peak. But it is also possible that the first peak is from an obstruction, whilst
the second peak is the level peak.
In that case the first peak is used to present the level, with error number 7014 and level reading
‘999999999’.
In the course of the time it may become apparent which is the level peak when there is a level change.
When this happens the error is removed and the correct level is presented.
When however the level in the tank does not change, it may take a long time for the situation with error 7014
to persist. That is why the operator can interfere.
With item 4W the operator selects the first peak as level peak; with item 4X the operator selects the second
peak as level peak. In both cases the error 7014 is removed and turned into a warning 7014.
With these commands the operator can inspect the two level values involved in the dilemma and choose the
level value that he judges is the product level.
In addition the operator can cancel the level selection with item 4Y. This will restore the level failure situation
with level reading ‘999999999’ and error code 7014.
In the course of time, when there has been a sufficient level change, the start-up dilemma will be resolved.
From that moment on error 7014 or warning 7014 will disappear, the level will be presented and the
commands 4W, 4X and 4Y will have no effect.
Item
Name
Description
4W
Select first peak
With this command, the first peak is used as level peak and
error code 07014 is changed to warning code 07014.
Warning code 07014 disappears when there is enough change
in level to determine by the peak selection software that the
selected peak indeed is the product peak.
4X
Select second peak
This command makes the second peak the level peak and error
code 07014 is changed to warning code 07014.
Warning code 07014 disappears when there is enough change
in level to determine by the peak selection software that the
selected peak indeed is the product peak.
4Y
Cancel select peak
This command cancels the 4W or 4X commands and the first
peak is used as level peak with error code 07014.
Only possible as long as there is the warning code 07014.
Instruction manual 973 SmartRadar LT
Page 33
Commissioning
3.4.9 Additional adjustment with measurement on stilling well
The propagation speed of the microwave, and hence the level measurement, depends on the inner diameter
of the stilling well. The smaller the diameter, the lower the propagation speed, resulting in a larger measured
radar ullage.
Item BD holds the inner diameter of the stilling well. When the real value of the inner diameter differs from
the setting in item BD, the SmartRadar has a ‘gain’ error in the level measurement.
It is therefore recommended to check the level reading of the SmartRadar LT with some manual dips at
different static levels over the full operating range.
Note:
After commissioning, the AdvancedDSP routines require one complete passage through the full
operating level range, before the optimum accurate level reading is obtained.
A level gain error, when present, can be corrected in two ways:
•
•
ullage correction table
adjustment of item BD
For the correction via the ullage correction table, refer to the description of items CW, CL and CS.
The correct value for the stilling well diameter can be calculated with the following equation:
BD
new
1-
e 2scale
1-
BD orig
where:
S06, S08, S10, S12
0.036568
0.0013372
H04, H02
0.017568
0.0003086
Antenna type
BDnew :
BDorig :
εscale :
recalculated stilling well diameter [m]
original stilling well diameter [m]
scale error (relative gain error)
example: 10 mm gain error on 20 m range: εscale = 20 / (20 + 0.010) = 0.9995.
for the sign of the scale error, refer to figure 3.12. If α is positive, the scale error
sign is positive; if a is negative, the scale error sign is negative.
Figure 3.12
Page 34
Sign of scale error
Commissioning
An example with an S10 antenna:
Item BD is programmed as 254 mm.
At 19 m level, the deviation of the SmartRadar LT level is: -2 mm;
At 2 m level, the deviation of the SmartRadar LT level is: +3 mm.
BD
new
0.036568
1-
17
17 - 0.005
1 - 0.0013372
0.254
= 0.2576 [m]
Note:
After the new stilling well diameter is programmed, the SmartRadar LT must be set to level with the RL
and AR sequence.
Hence, the procedure to follow is:
Item
Name
Description
W2=
Protection level 2
Enter password 2.
BD= Stilling well diameter
Recalculated stilling well diameter.
RL= Reference level
Reference level from manual measurement.
EX
Exit
Exit protection level.
W2=
Protection level 2
Enter password 2.
CM
Commissioning mode
Enter commissioning mode to accept the reference level.
AR
Accept reference
The reference level, given by item RL, will now be accepted as
the radar level.
Exit
Exit protection level.
EX
Instruction manual 973 SmartRadar LT
Page 35
Commissioning
3.5 Data items
The table below lists a number of data items. They contain measured data, verification data and error data.
The verification data can be used to check the peak selection result. The radar status indicates the validity
of the measured data.
The error data provide low level error information about the instrument (refer to section 4.5).
Item
RD
RI
Description
Measured data
Product reflection signal strength (dB)
Innage (format according to item LD);
the value is preceded by two characters from radar status item QR
Ullage (format according to item LD);
the value is preceded by two characters from radar status item QR
Verification data
Number of detected peaks
Position of detected peaks
(format according to item LD; indexed item, 15 elements)
Amplitude of detected peaks
(standard power format; indexed item, 15 elements)
Internal temperature of 973 SmartRadar LT
(format according to item TD)
Radar status; refer to section 4.5.2
Error data
Error DAB request
Error ICU (APU part) request (indexed item, 10 elements)
Error ICU (XPU-2 part) request
Warning code ICU (APU part) (indexed item, 10 elements)
RU
5C
5D
5E
RT
QR
EB
EE
EP
WC
Page 36
Service and troubleshooting
Service and troubleshooting
The 973 SmartRadar LT does not require preventive maintenance.
For mechanical and electrical installation details, refer to the installation guides of the Antennas and the
SmartRadar LT
Depending on the application, the Antenna may over time become too contaminated for accurate level
measurement. This condition is then signalled by the built-in diagnostics of the 973 SmartRadar LT. Then a
warning code (WC: 07001) is generated. In that case, the Antenna should be cleaned.
4.1 SmartRadar LT layout
The SmartRadar LT housing consists of two sections: the electronic compartment and the terminal
compartment (refer to figure 4.1).
Figure 4.1
Item
10
11
Lay-out 973 SmartRadar LT
Description
Item
Description
Item
Description
Rear cover
Front cover
Cover blocking devices
Terminals
ICU_GPS board (supply board)
10
Tank separator coupling
RFB-2 /
DAB board
ICU_RS232/RS485 board or
ICU_HPO board (optional)
11
Infra-red connector
(optional)
ICU board
ICU_HPI board (optional)
The electronic compartment can be accessed by removing (unscrewing) the front cover (5).
The terminal compartment can be accessed by opening the rear cover (1).
Instruction manual 973 SmartRadar LT
Page 37
Service and troubleshooting
4.2 The instrument covers
The SmartRadar LT enclosure is water proof IP67. For this purpose, the covers are fitted with O-rings.
Check the O-rings before closing the instrument.
Caution
Do not damage the thread of the covers and 973 housing and keep the thread free of dirt.
After opening, grease it lightly with anti seize grease.
When closing, never tighten the covers before the threads are properly engaged.
The covers should be turned counter-clockwise until the thread “clicks” in place,
then turn clockwise until the covers are fully closed.
4.3 Min max diagram
One of the features of the 973 SmartRadar LT is that the instrument keeps track of the measured
reflections. The minimum and maximum product reflection strength, measured at each Fourier interval, is
stored.
Whenever a larger reflection strength is measured at a specific Fourier interval, the previous value is
overwritten. The same is done for the minimum reflection strength value. In this way, a reflection history is
present in the instrument.
The minimum and maximum reflection strength values can be retrieved by the Ensite service tool producing
a so-called “min max diagram”. Figure 4.2 gives an example of a min max diagram.
SmartRadar Min-Max Diagram. TI : TK-560
[dB]
Min. Ull
Max. SF.
6.926
08-11-1996 13:27
BA417-1899001-D0
File: TK-56002.MMD
SN:.18739535005
90
Tank
Zero
80
70
60 RB
50
40
30
ZA
ZP
20
ZB
10
Figure 4.2
10
12
14
[m]
Example of min max diagram
In the example above, all measured product reflections are well above the product zone threshold.
However, if some of the minimum reflections where found just above or at the product zone threshold, this is
a signal that the product zone threshold should be lowered (or the gain, item 5O, should be increased).
The memory of the min max diagram can be cleared with command CZ.
Page 38
Service and troubleshooting
Item
Name
Description
W2=
Protection level 2
Enter password 2.
Clear min max diagram
Clears all elements of item 4T by writing 30H in them (sets 4T to
default).
Exit
Exit protection level.
CZ
EX
4.4 Alarm loop checking
Normally, level alarms can be verified when the level reaches the low level or high level alarm set point.
The level alarms and, if applicable, the hard alarm contact coupled to one of the level alarms, can be
checked by a “loop check” command. This is independent of the actual level value.
The level alarm signalling can be checked in several ways:
• via the communication line to the host
• via the hard alarm output contact
When enabled, the alarm test (item AT) can be given. The specified alarm is then toggled for one minute.
Item AT has 8 positions; four character pairs are used to specify the desired alarm for testing: HH, HA, LA
and LL. Each alarm can be tested individually, or the alarms can be tested simultaneously.
Item
Name
Description
LE
Loop check enable
The loop check enable item enables or disables the alarm test
with item AT.
•
•
E:
D:
enables alarm test with item AT
disables alarm test with item AT
If the alarm test is required, check if item LE is set to “E”.
If item LE is set to “D”, change the setting to “E”.
AT=
Alarm test
The alarm test item toggles the specified level alarm for one
minute. The settings for the alarms to be tested are as follows:
aabbccdd
(8 ASCII characters)
where:
aa : HH high high level alarm test
-no high high level alarm test
bb : HA high level alarm test
-no high level alarm test
cc : LA
low level alarm test
-no low level alarm test
dd : LL
low low level alarm test
-no low low level alarm test
For example:
AT= - - HALA - toggles the high and low level alarm for one minute.
Note:
When, as in the above example, a high and low alarm are toggled at the same time, the high alarm
prevails over the low alarm on the communication line. It is therefore recommended to check only one
alarm at the time.
Instruction manual 973 SmartRadar LT
Page 39
Service and troubleshooting
4.5 Error codes and status information
The 973 SmartRadar LT is an instrument with error reporting. Detected errors can be requested by the 847
PET (optional) or by the service tool Ensite.
The following items provide the error data of the processor boards:
EB
EE
EP
WC
Error request RFB-2 / DAB board
Error request ICU board (APU part)
Error request ICU board (XPU-2 part)
Warning code ICU board (APU part) (not a real error, but a warning that the level may not be
accurate)
These items contain an error (warning) code of the last occurred error condition. The error data can be read
as long as the gauge is not reset.
Besides the error data, data items from level, and optional functions such as temperature and analog level
output, contain one or more status characters which also give valuable information. Most status characters
are bit coded. Appendix B contains an ASCII table for conversion of a status character into bits.
Bits are numbered from 0 to 7 from right to left.
An example for a bit coded status character:
a status character reads: F;
written out in bits (refer to Appendix B): 0100 0110;
(b7=0, b6=1, b5=0, b4=0, b3=0, b2=1, b1=1, b0=0).
Bit 7 is always a '0' and bit 6 is always a '1', to avoid 'control' characters.
Look up the description of the particular error (e.g. QR in section 4.5.2) to find the description of the
meanings allocated to each bit of the character. Only the bits set to '1' represent an actual status.
4.5.1 XPU-2 error code (item EP) of ICU board
The XPU-2 error code is a three-digit number. When the XPU-2 detected an error about a certain item, that
item follows the error code, separated by a space.
For instance: 067 LL : invalid level format in item LL.
Some ICU (XPU-2 part) error codes of item EP are listed below, with suggestions for solving the problem.
For a complete overview, refer to item help in the service tool Ensite.
000
014
051
056
067
075
076
082
089
101
No error
NOVRAM operation error
Unknown item
Wrong protection level
Invalid level format
Invalid density format
Invalid floating point format
Invalid password
Invalid pressure format
Watchdog reset error
137
No optional board
200
201
202
999
Invalid indexed item format
Invalid indexed item start index
Invalid indexed item index length
Fatal ICU error
Page 40
Set item 03 to’@‘; Check all settings, there may be an error
Item not known to SmartRadar LT, check for correct item
First enter protection level 1 or 2
Check item LD, then give the setting in the correct level format
Check item DI, then give the setting in the correct density format
Give setting in correct floating point format (refer section to 3.3.1)
Give the correct password for W1 and W2
Check item PI, then give setting in the correct pressure format
The watchdog reset is a sign that there is a serious fault, caused by
interference, or a faulty ICU board
Missing optional board; either not well connected to the ICU board, or
optional board is defective
Wrong indexed item format; use points between indexes
Wrong indexed item element number; too large or invalid
Wrong indexed item length; can be between “1” and “9”
Serious internal ICU software error; check contents of item 00 and
report to Enraf Delft
Service and troubleshooting
4.5.2 APU warning code (item WC), error code (item EE) and status request
(item QR) of ICU board
Some ICU (APU part) warning codes of item WC (indexed item of 10 elements) are listed below, with
suggestions for solving the problem. For a complete overview, refer to item help in the service tool Ensite.
00000
07000
No warning
Low product reflection
07001
07005
07006
07007
07013
07014
Sensor contaminated
Top / bottom clipping in raw samples A-channel
Top clipping raw samples A-channel
Bottom clipping raw samples A-channel
Level above measuring range
Ambiguous init situation
07200
Reduced accuracy
07201
A-channel measurement error after start-up
No product reflection above threshold; check with a reflection diagram
and lower threshold value in item ZP if possible
Clean the antenna
Lower A-channel gain in item 5O, or enable automatic amplification
control item 4M
Level measured with reduced accuracy and close to antenna!
Select first peak or select second peak command has been issued.
Warning code disappears after peak detection routine has detected a
certain (valid) level change.
Not enough points in table or level too close to antenna (within 4 m) for
AdvancedDSP level calculation. This is automatically corrected when
level in tank changes.
This will be solved when the level in the tank reaches the reference
level, or when a new RL level is entered, followed by the AR command
Some ICU (APU part) error codes of item EE (indexed item of 10 elements) are listed below, with
suggestions for solving the problem. For a complete overview, refer to item help in the service tool Ensite.
00000
07014
No errors encountered
Ambiguous init situation
07101
07102
07103
07104
07106
Antenna zone out of range
Antenna zone end before begin
Antenna zone threshold out of range
Product zone threshold out of range
Start bottom zone after bottom end
07107
07108
07109
07110
07112
07113
07170
07172
07173
Bottom zone threshold out of range
Obstruction zone start out of range
Obstruction zone end out of range
Obstruction zone position switch
Obstruction zone threshold out of range
Short measuring range
Stilling well diameter out of range
Operation mode unknown
Antenna mode / Operation mode conflict
07901
18001
21003
21004
99999
Maximum safe fill (item SF) exceeded
Relay error
Ullage correction table error
Verification pin table error
Value at initialization
Instruction manual 973 SmartRadar LT
Select first peak (item 4W) or select second peak (item 4X), after
verification of level by means of manual measurement
The antenna and bottom zone may not overlap; check items AZ and BZ
Check sign of item AZ (should not be negative)
Item ZA must be between 0 and 90 dB
Item ZP must be between 0 and 90 dB
Bottom zone (item BZ) must be within measuring range (40 metres).
Check also item PR
Item ZB must be between 0 and 90 dB
Obstruction zone start and end must be within measuring range
(40 metres). Check also item PR
Define obstruction zones in consecutive order
Item OT.n.i must be between 0 and 90 dB
Antenna zone (item AZ) and bottom zone (item BZ) may not overlap
Item BD must be between +0.0440 and +0.3353 metres range
Item OM must be either ‘F’ or ‘S’
Wrong type of antenna used (i.e. stilling well antenna on a free space
SmartRadar LT)
Item SF must not be zero and not exceed the range (PR - AU)
Check item AX, or replace ICU board
Check item CL; each level may only be entered once
Check items PB and PC (must be entered in ascending order)
Page 41
Service and troubleshooting
Item QR consists of 2 bytes (Byte 0, Byte 1) with status information of the ICU board (APU part).
Status byte 0:
Status byte 1:
bit 0 : Low level alarm
bit 0 : Level fail
1 : Low low level alarm
1 : Warning (for example: sensor contaminated)
2 : High level alarm
2 : Last valid level used
3 : High high level alarm
3 : Reduced accuracy
4 : General ICU fail
4 : Out of measuring range (close to antenna)
5 : Init / No previous store command
5 : Blocked
6: 1
6: 1
7: 0
7: 0
4.5.3 DAB error code (item EB) and status request (item QH) of RFB-2/DAB board
Some RFB-2/DAB error codes of item EB are listed below, with suggestions for solving the problem. For a
complete overview, refer to item help in the service tool Ensite.
0000
0051
0053
0054
0055
0056
0057
No errors encountered
Antenna parameter can not be stored
SmartRadar LT parameters can not be stored
SmartRadar LT calibration parameters can not
be stored
Antenna SEEPROM is write protected
SmartRadar LT SEEPROM is write protected
SmartRadar LT calibration SEEPROM is write
protected
SEEPROM for the antenna or the SmartRadar LT is defective, or write
protect strap is in protect position
Write protect strap is in protect position
Item QH consists of 2 bytes (Byte 0, Byte 1) with status information of the RFB-2 / DAB board.
Status byte 0:
bit 0 : SEEPROM write allowed
1 : SEEPROM write busy
2-5 : 0
6: 1
7: 0
Status byte 1:
bit 0 : Reduced accuracy
1 : Non fatal RFB-2/DAB error
2 : Fatal RFB-2/DAB error
3 : EXT line level
4 : Sweep ready (if externally triggered)
5 : Number of ADCs (0: 1 ADC; 1: 2 ADCs)
6: 1
7: 0
Page 42
Service and troubleshooting
4.6 Updating software
The 973 SmartRadar LT is a multiple microprocessor gauge. If a new software version is installed, or an
option board is added, it may be necessary to replace one or more of the program memories (EPROM) on
the processor boards of the 973 SmartRadar LT.
The actual version of the installed software can be checked with item SV. In case of a software update,
check whether the contents of item SV correspond with the documentation accompanying the new software.
Because of the strict relationship between the various processor boards, it may become necessary to
replace the memory of more than one processor board. Such a change may require an initialization of the
NOVRAM, followed by re-programming the user parameters.
The table below gives the software versions for the different processor boards which can operate together.
Processor
ICU board
(XPU-2 part)
ICU board
(APU part)
RFB-2 / DAB
board
Software
version
XPU K1.0
APU B1.0
DAB B1.0
Optional board
HPI A1.0
HPO A1.0
Note:
Because software updates of different processor boards may be required in the future, this table may not
be up to date. For further information, contact Enraf or the local representative.
If a new DAB / APU software version from a different row in the table above is placed in the SmartRadar LT,
the Antenna parameters must also be updated. This can be done with a separate script file named:
“873AUD03.ESF” of the Ensite service tool.
Proceed as follows:
1) Start up Ensite and make a log file of the gauge from which the software is going to be replaced.
2) Run the script file 873AUD03.ESF. This file is (should be) placed in the ESF sub-directory of the
Ensite program and then it can be selected by the name: “873 AU download”. This file stores data of
the Antenna and RFB-2 calibration SEEPROM in a file called: “< TI >.AUD”, located in the Tank
subdirectory under: [drive]:\ENSITE\DAT\.SIT\. (TI is the 6 character tank identifier name,
 represents the given site name when the scanned site data was stored and [drive] is the
C- or D- drive from which the Ensite service tool is running).
3) Request to following data with the service tool Ensite:
• Transmission address (item TA)
• Tank identifier (item TI)
• Transmission speed (item TS)
• Gauge type (item GT)
Note these values for later use.
Warning
Switch off supply before opening any of the covers.
4) Switch off mains supply and open cover of electronic compartment.
Instruction manual 973 SmartRadar LT
Page 43
CN6
'D'
'D'
'C'
CN1
CN5
CN3 CN2
'D'
'C'
'A'
'A'
'C'
CN1
CN5
CN8 CN7
CN3
CN1
CN8 CN7
'B'
'C'
CN3 CN2
'B'
CN1
'D'
CN1
CN6
Service and troubleshooting
'B'
'C'
'C'
'C'
'B'
'A'
'D'
Figure 4.3
Item
'B'
'D'
'B'
'C'
'A'
'D'
CN1
'D'
Removing of boards for changing software (EPROM’s)
Description
Supply board (ICU_GPS)
Optional communication board (ICU_RS232/485 or ICU_HPO)
Optional interface board (ICU_HPI)
ICU board
4.6.1 Replacing software (EPROM) on ICU_HPO board
Locate ICU_HPO board (refer to figure 4.3 and to Appendix C).
Remove EPROM and insert new EPROM (mind notch!).
4.6.2 Replacing software (EPROM) on ICU_HPI board
When no optional communication board (ICU_RS232/485 or ICU_HPO) is installed;
Locate ICU_HPI board (refer to figure 4.3 and to Appendix C).
Remove EPROM and insert new EPROM (mind notch!).
When an optional communication board (ICU_RS232/485 or ICU_HPO) is installed;
Loosen the 4 Allen head screws, marked “A” in figure 4.3 (use Allen head key 2.5 mm).
Pull optional communication board away from ICU_HPI board so that it is released from its connector
and move it to the left side.
Locate ICU_HPI board (refer to figure 4.3 and to Appendix C).
Remove EPROM and insert new EPROM (mind notch!).
Put optional communication board in place (mind the connector!) and secure it with the 4 Allen head
screws.
Page 44
Service and troubleshooting
4.6.3 Replacing software (EPROM’s) on ICU board
a) XPU-2 EPROM / NOVRAM:
When no optional interface board (ICU_HPI) is installed;
Locate ICU board (refer to figure 4.3 and to Appendix C).
Remove EPROM and insert new EPROM (mind notch!).
Remove NOVRAM and insert new NOVRAM (mind notch!).
When optional interface board (ICU_HPI) is installed;
When optional communication board (ICU_RS232/485 or ICU_HPO) is installed;
Loosen the 4 Allen head screws, marked “A” in figure 4.3 (use Allen head key 2.5 mm).
Pull optional communication board away from ICU_HPI board so that it is released from its
connector and move it to the left side.
Loosen the 4 Allen head screws, marked “B” in figure 4.3 (use Allen head key 2.5 mm).
Pull optional interface board away from ICU board so that it is released from its connector and
move it to above.
Locate ICU board (refer to figure 4.3 and to Appendix C).
Remove XPU-2 EPROM and insert new EPROM (mind notch!).
Remove NOVRAM and insert new NOVRAM (mind notch!).
Put ICU_HPI board in place (mind the connector!) and secure it with the 4 Allen head screws.
Put optional communication board in place (mind the connector) and secure it with the 4 Allen
head screws.
When no optional communication board (ICU_RS232/485 or ICU_HPO) is installed;
Loosen the 4 Allen head screws, marked “B” in figure 4.3 (use Allen head key 2.5 mm).
Pull optional interface board away from ICU board so that it is released from its connector and
move it to above.
Locate ICU board (refer to figure 4.3 and to Appendix C).
Remove XPU-2 EPROM and insert new EPROM (mind notch!).
Remove NOVRAM and insert new NOVRAM (mind notch!).
Put ICU_HPI board in place (mind the connector!) and secure it with the 4 Allen head screws.
b) APU EPROM’s:
Loosen the 4 Allen head screws, marked “C” in figure 4.3 (use Allen head key 2.5 mm).
Pull supply board away from ICU board so that it is released from its connector and move it to the right.
Locate ICU board (refer to figure 4.3 and to Appendix C).
Remove APU EPROM’s and insert new APU EPROM’s (APU-L and APU-H) (mind notch!).
Put ICU_GPS board in place (mind the connector!) and secure it with the 4 Allen head screws.
4.6.4 Replacing software (EPROM) on RFB-2 / DAB board
The ICU_GPS board and eventually installed optional boards can remain on the ICU board. However, all
wiring connected to them must be, temporary, disconnected.
• connector(s) CN1 (and CN2) on ICU_GPS board
• connectors CN1 and CN 3 on optional communication board
• connectors CN1 and CN2 on optional interface board
• connector CN5 on ICU board (blue wires, marked 7 and 8)
• connector CN6 on ICU board (white wires, marked T , T)
• connector CN7 or CN8 on ICU board (black wires, marked 5 and 6)
When the optional Infra-Red connector is installed, also disconnect temporary the cable to CN1 on ICU
board (black cable next to XPU-2 jumpers).
Loosen the 4 Allen head screws, marked “D” in figure 4.3 (use Allen head key 3 mm).
Pull ICU board with mounting plate away from RFB-2 / DAB board so that it is released from its connector
The RFB-2 / DAB board is now visible (refer to figure 4.3 and to Appendix C).
Remove DAB EPROM and insert new DAB EPROM (mind notch!).
Instruction manual 973 SmartRadar LT
Page 45
Service and troubleshooting
Put ICU board with mounting plate in place (mind the connector!) and secure it with the 4 Allen head screws.
Insert all connectors which where disconnected.
4.6.5 NOVRAM init
Close covers and apply power.
If NOVRAM needs to be formatted, proceed as follows:
a) If Infra-Red connector is present:
Issue the command IN on the PET three times in sequence. After the third time the NOVRAM will be
formatted and the message: "NV-data initializing" appears.
Note:
Any other command in between the three IN commands, either from the PET or the Enraf field
bus, will abort the init procedure. To avoid requests from the Enraf field bus, they can be
disconnected temporarily.
When the NOVRAM formatting is ready, the message: "NV-data init completed" will be shown.
Re-enter the items: TA (transmission address)
TI (tank identifier)
TS (transmission speed)
GT (gauge type)
Re-transmit the log file from Ensite service tool.
Program all new settings which are required with the updated software.
Set the SmartRadar LT to the correct level (check by means of a manual measurement) by using the
RL, AR procedure (refer to chapter 3.4.3).
Make a new log file and a reflection diagram with Ensite service tool for future reference.
b) Without Infra-Red connector, hook-up Ensite service tool as described in section 3.3.
Select on Ensite service tool the feature: ‘split screen’. Then the upper and lower display row are
given in the top screen.
Select transmission address 00, and give the command IN three times in sequence.
When the NOVRAM formatting is ready, the message: "NV-data init completed" will be shown in top
screen. Re-transmit the log file from Ensite service tool.
Program all new settings which are required with the updated software.
Set the SmartRadar LT to the correct level (check by means of a manual measurement) by using the
RL, AR procedure (refer to chapter 3.4.3).
Make a new log file and a reflection diagram with Ensite service tool for future reference.
4.6.6 Download Antenna and RFB-2 parameters (if required)
The write protect strap on the RFB-2 / DAB board must be placed in position W (write enable). This strap is
located on the RFB-2 / DAB board. To reach the strap, follow the instructions as given for replacing the DAB
EPROM.
The strap is located at the left from the Antenna SEEPROM (refer to Appendix C).
After the strap is placed to position W, install all boards, connect all wires, close cover and apply power.
Run from the service tool Ensite the script file .AUD, which was made before changing the EPROM’s
(use: &RUN [drive]:ENSITE\DAT\.SIT\\.AUD).
Program all new settings which are required with the updated software.
Switch off supply, open electronic compartment cover, remove ICU board and put strap J1 back to P
(write protect). Install all boards, connect all wires, close cover and apply power.
Page 46
Appendix
Appendix A Article and part numbers
It is recommended to keep one set printed circuit boards on stock for spare.
Refer to the figure on the next page.
No.
Description
Part. no.
Front cover
0186.853
O - ring
(215 x 4 NBR70)
2132.990
Communication board
ICU_RS232/485 board
ICU_HPO board
Allen head screw M3 x 8 st.st.
Spring washer M3 st.st.
(option)
(RS-232c or RS-485)
®
(analog 4-20 mA + HART )
(4 x)
(4 x)
0973.611
0973.612
6409.033
6487.003
Fuses (2 x)
(ac supply: 1.6 A, 250 V)
(dc supply: 2.0 A, 250 V)
2655.177
2655.178
ICU_GPS board
0973.630
0973.631
6409.035
6487.003
Allen head screw M3 x 12 st.st.
Spring washer M3 st.st.
(supply: 110 - 240 Vac)
(supply: 24 - 64 Vdc)
(4 x)
(4 x)
ICU_IS board
Allen head screw M3 x 8 st.st.
Spring washer M3 st.st.
(option)
(2 x)
(2 x)
0973.550
6409.033
6487.003
HART (and spot) input board
(option)
®
(HART )
®
(HART + Spot)
(4 x)
(4 x)
0973.623
0973.624
6409.033
6487.003
(basic version)
(with alarm relay)
(4 x)
(4 x)
(3 x)
(3 x)
0973.601
0973.603
6409.055
6487.004
6409.052
6487.004
®
Allen head screw M3 x 8 st.st.
Spring washer M3 st.st.
ICU board
Allen head screw M4 x 16 st.st.
Spring washer M4 st.st.
Allen head screw M4 x 8 st.st.
Spring washer M4 st.st.
Infra-Red connector
O - ring
(option)
(part of IR connector
assembly)
0854.380
2132.210
10
Terminals (grey)
(8 x)
2635.308
11
Terminals (blue)
(9 x)
2635.309
12
O - ring
(160 x 4 NBR70)
2132.989
13
Rear cover
0186.854
Grease, anti seize
4000.015
Instruction manual 973 SmartRadar LT
Page 47
Appendix
6a
10
11 12
13
6b
3a
5a
7a
3b
5b
7b
8a 8c
8b 8d
9a
Exploded view 973 SmartRadar LT
The printed circuit boards are delivered without EPROM's and on the ICU board, also the NOVRAM is not
installed. These should ordered separately; the part numbers are:
EPROM
Part no.
EPROM
Part no.
ICU - APU L&H (set)
0181.302
ICU_HPI
0181.311
ICU - XPU-2
0181.301
NOVRAM (ICU - XPU-2)
2518.929
RFB-2 / DAB
0181.309
Parts in the 973 SmartRadar LT can be easily exchanged, with the exception of the RFB-2 / DAB board.
That is because of the calibration of the VCO part and the quartz microwave feed through in the SmartRadar
LT housing.
Antennas can be changed for the same type and with the same stem length. Refer to table on next page for
the part numbers. Also the tank separator can be changed for the same type.
Tank separator
Part no.
for all planar antenna models
0873.880
O - ring for 0873.880 (for enclosure against flange / adapter plate)
2132.817
O - ring for 0873.880 (for enclosure of antenna stem)
2132.334
for H04 antenna
0873.881
for H02 and D02 antenna’s
integrated in antenna
Page 48
Appendix
Antenna type part numbers
Antenna type
Stem length [mm]
Part number
S06
6" stilling well
0050
0300
0500
0800
0873.911
0873.913
0873.915
0873.918
S08
8" stilling well
0050
0300
0500
0800
0873.921
0873.923
0873.925
0873.928
S10
10" stilling well
0050
0300
0500
0800
0873.931
0873.933
0873.935
0873.938
S12
12" stilling well
0050
0300
0500
0800
0873.941
0873.943
0873.945
0873.948
F08
8" free space
0050
0300
0500
0800
0873.971
0873.973
0873.975
0873.978
W06
WALP 6" x 12"
0050 )
0300
0500
0800
0873.961
0873.963
0873.965
0873.968
T06
Hinged WALP
6" x 12"
0300
0500
0800
0873.953
0873.955
0873.958
D02
1" RoD
0000
0873.902
H02
High pressure
H02 Antenna
with integrated
tank separator
0873.990
H04
High pressure
360 mm horn length )
410 mm horn length )
0186.371
0186.273
) For demo purposes only
) For 4" Sch 40 pipe
) For 4" Sch 10 pipe
Instruction manual 973 SmartRadar LT
Page 49
Appendix
Appendix B ASCII table
Page 50
Appendix
Appendix C PCB layout
J1
DAB
EPROM
Antenna
SEEPROM
mP
LSC
ART
MUM
ICU_HPI board
RFB-2/DAB board
alarm relay
(optional)
APU (H)
EPROM
APU (L)
EPROM
NOVRAM
mP
XPU-2
EPROM
mP
jumpers
ICU_HPO board
ICU board
Layout of different processor boards
The x inside the EPROM in the figure above notes the notch on the EPROM. The notch of the EPROM
must fit with the notch of the EPROM socket on the processor board.
Instruction manual 973 SmartRadar LT
Page 51
Appendix
Appendix D Related documents
Title
Part No.
Installation guide 973 SmartRadar LT
Installation guide SmartRadar Antennas
Model 973 SmartRadar LT Safety instructions for installation, commissioning,
operation and maintenance
4416.641
4416.642
Instruction manual 973 SmartRadar LT Hard alarm output contact
Instruction manual SmartRadar Verification pin compensation
4416.633
4416.635
Instruction manual ENSITE service tool
Instruction manual 847 PET
4416.587
4416.210
Installation guide ICU_RS-232/485 board
Installation guide ICU_GPS board
Installation guide ICU_HPI board
Installation guide ICU_HPO board
4416.637
4416.638
4416.639
4416.640
Instruction manual Temperature, Water bottom and Analog output options
Instruction manual HIMS / HTG and vapour pressure (P3) measurement
4416.644
4416.645
®
4416.643
Instruction manual 973 SmartRadar LT HART output communication
Instruction manual 973 SmartRadar LT RS-232/485 output communication
Protocol manual SmartRadar
4416.646
4416.647
4416.634
Item documentation Enraf series 854, 873, 877 & 973 gauges
4416.277
Identification code 973 SmartRadar LT
4416.954
Page 52
Index
Index
Accept reference . . . . . . . . . . . . . . . . . . . . 22, 35
Acceptance criterium . . . . . . . . . . . . . . . . . . . . 31
AdvancedDSP . . . . . . . . . . 21, 22, 26, 28, 32, 34
Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Alarm test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Amplitude of detected peaks . . . . . . . . . . . 26, 36
Analog level output . . . . . . . . . . . . . . . . . . . . . 6, 9
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . 7, 48, 49
zone length . . . . . . . . . . . . . . . . . . . . . . 23, 25
zone threshold . . . . . . . . . . . . . . . . . . . . 23, 25
Antenna and RFB-2 parameters . . . . . . . . . . . 46
Anti seize grease . . . . . . . . . . . . . . . . . . . . 38, 47
ASCII table . . . . . . . . . . . . . . . . . . . . . . . . . 40, 50
Averaging constant . . . . . . . . . . . . . . . . . . . . . 21
Bottom zone . . . . . . . . . . . . . . . . . . . . . . . . 24, 32
offset . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 25
threshold . . . . . . . . . . . . . . . . . . . . . . . . 24, 25
Cancel select peak . . . . . . . . . . . . . . . . . . . . . . 33
Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CIU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 17
CIU Prime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Clear min max diagram . . . . . . . . . . . . . . . . . . 39
Commissioning mode . . . . . . . . . . . . . . . . . 22, 35
Decimal separator . . . . . . . . . . . . . . . . . . . . . . 19
Detection algorithm . . . . . . . . . . . . . . . . . . . . . 31
Display selection . . . . . . . . . . . . . . . . . . . . . . . 31
Electronic compartment . . . . . . . . . . . . . . . . . . 37
Element number . . . . . . . . . . . . . . . . . . . . . . . . 13
Enraf field bus line . . . . . . . . . . . . . . . . . 6, 14, 17
Ensite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
EPROM . . . . . . . . . . . . . . . . . . 43, 44, 45, 47, 51
Error code . . . . . . . . . . . . . . . . . . . . . . . 22, 36, 40
Error DAB request . . . . . . . . . . . . . . . . 36, 40, 42
Error ICU (APU part) request . . . . . . . . 36, 40, 41
Error ICU (XPU-2 part) request . . . . . . . . . 36, 40
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 21
Fourier distance . . . . . . . . . . . . . . . . . . . . . . . . 24
Freeze RSP data . . . . . . . . . . . . . . . . . . . . . . . 26
Front cover . . . . . . . . . . . . . . . . . . . . . . . . . 37, 47
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Gain A-channel . . . . . . . . . . . . . . . . . . . . . . . . . 38
Gauge type . . . . . . . . . . . . . . . . . . . . . . 17, 43, 46
Hard alarm output contact . . . . . . . . . . . . . . . 6, 9
HART communication . . . . . . . . . . . . 6, 9, 15, 17
HART modem . . . . . . . . . . . . . . . . . . . . . . . . . . 15
I.S. output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ICU board . . . . . . . . . . . . 9, 13, 37, 44, 45, 47, 51
ICU_GPS board . . . . . . . . . . . . . . . . . . 37, 44, 47
ICU_HPI board . . . . . . . . . 6, 9, 37, 44, 45, 47, 51
ICU_HPO board . . . . . . . . 6, 9, 37, 44, 45, 47, 51
ICU_RS232/485 board . . . . . . 6, 9, 37, 44, 45, 47
Indexed items . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Innage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
IR connector . . . . . . . . . . . . . . . . . . . 6, 14, 37, 47
Instruction manual 973 SmartRadar LT
Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32, 33
4V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 32
4W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33, 41
4X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33, 41
4Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 36
5D . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 31, 36
5E . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 31, 36
5O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38, 41
AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AR . . . . . . . . . . . . . . . . . . . . . . . 22, 35, 41, 46
AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
AU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 41
AX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
AZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25, 41
BD . . . . . . . . . . . . . . . . . . . . 20, 21, 34, 35, 41
BZ . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 25, 41
CL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34, 41
CM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 35
CS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38, 39
DE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
EB . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 40, 42
EE . . . . . . . . . . . . . . . . . . . . . . . 22, 36, 40, 41
EP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 40
EX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
FC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
FI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31, 32
GT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43, 46
HA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
HH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
LA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
LD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19, 40
LE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
LL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
OE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 32
OM . . . . . . . . . . . . . . . . . . . . . . . . . . 20, 21, 41
OR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 31
OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 32
OT . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 32, 41
OZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 32
PB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Page 53
Index
PI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
PR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 41
QH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
QR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 42
RD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 36
RL . . . . . . . . . . . . . . . . . . . . . . . 22, 35, 41, 46
RT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 36
SF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21, 41
SV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
TA . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 43, 46
TI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43, 46
TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43, 46
UR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
W1 . . . . . . . . . . . . . . . . . . . . . . . . . . 12, 31, 40
W2 . . . . . . . . . . . . . . . . . . . . . . . 13, 17, 31, 40
WC . . . . . . . . . . . . . . . . . . . . . . 22, 36, 40, 41
ZA . . . . . . . . . . . . . . . . . . . . . . . . . . 25, 31, 41
ZB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25, 31
ZP . . . . . . . . . . . . . . . . . . . . . . . . . . 25, 31, 41
Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Level alarm
high . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 39
high high . . . . . . . . . . . . . . . . . . . . . . . . 29, 39
hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . 29
low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 39
low low . . . . . . . . . . . . . . . . . . . . . . . . . . 29, 39
Level calculation decision switch . . . . . . . . 21, 32
second . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Level dimension . . . . . . . . . . . . . . . . . . . . . . . . 19
Level type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Loop check enable . . . . . . . . . . . . . . . . . . . . . . 39
Low product delay counter . . . . . . . . . . . . . 31, 32
Maximum safe fill height . . . . . . . . . . . . . . . . . . 21
Min max diagram . . . . . . . . . . . . . . . . . . . . . . . 38
Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
NOVRAM . . . . . . . . . . . . . . . . . . . . . . . 12, 45, 46
format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
initialization . . . . . . . . . . . . . . . . . . . . . . . . . 46
Nozzle length . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Number of elements . . . . . . . . . . . . . . . . . . . . . 13
Number of peaks above threshold . . . . . . . 26, 36
Obstruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
reflections . . . . . . . . . . . . . . . . . . . . . . . . . . 26
zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 32
zone enable . . . . . . . . . . . . . . . . . . . . . . . . . 27
zone end . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
zone start . . . . . . . . . . . . . . . . . . . . . . . . . . 27
zone threshold . . . . . . . . . . . . . . . . . . . . . . . 27
Offset to roof . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Password 1 . . . . . . . . . . . . . . . . . . . . . . . . . 12, 31
Password 2 . . . . . . . . . . . . . . . . . . . . . . . . . 13, 31
Page 54
Peak selection dilemma . . . . . . . . . . . . . . . . . . 33
Portable Enraf Terminal . . . . 6, 10, 12, 14, 40, 46
Position of detected peaks . . . . . . . . . . . . . 26, 36
Position radar . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Product reflection signal strength . . . . . . . . . . . 36
Product zone . . . . . . . . . . . . . . . . . . . . . . . . . . 24
threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Protection level 1 . . . . . . . . . . . . . . . . . . . . . . . 12
Protection level 2 . . . . . . . . . . . . . . . . . . . . 13, 17
Radar innage . . . . . . . . . . . . . . . . . . . . . . . 21, 36
Radar operational mode . . . . . . . . . . . . . . . . . . 21
Radar reference . . . . . . . . . . . . . . . . . . 20, 23, 26
Radar Signal Processing . . . . . . . . . . . . . . . . . 26
Radar status . . . . . . . . . . . . . . . . . . . . . . . . 36, 42
Radar temperature . . . . . . . . . . . . . . . . . . . . . . 36
Radar ullage . . . . . . . . . . . . . . . . . . . . . . . . 21, 36
Rear cover . . . . . . . . . . . . . . . . . . . . . . . . . 37, 47
Reduced accuracy . . . . . . . . . . . . . . . . . . . . . . 32
Reference level . . . . . . . . . . . . . . . . . . . . . 22, 35
Reflection diagram. . . . . . . . . . . . . 23, 24, 25, 28
RFB-2 / DAB board . . . . . . . . . . . . . . . 37, 45, 51
RFB-2 / DAB status request . . . . . . . . . . . . . . . 42
Roof reflector . . . . . . . . . . . . . . . . . . . . . . . 32, 33
RS-232C / 485 communication . . . . . . . 6, 15, 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SEEPROM . . . . . . . . . . . . . . . . . . . . . . 42, 43, 46
Select first peak . . . . . . . . . . . . . . . . . . . . . . . . 33
Select second peak . . . . . . . . . . . . . . . . . . . . . 33
Service tool Ensite . . . . . . . . . . 12, 15, 16, 40, 43
Software version . . . . . . . . . . . . . . . . . . . . . . . . 43
SPR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Standard floating point format . . . . . . . . . . . . . 19
Standard power format . . . . . . . . . . . . . . . . . . . 19
Start-up dilemma . . . . . . . . . . . . . . . . . . . . . . . 33
Stilling well . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
diameter . . . . . . . . . . . . . . . . . . . . . . . . 21, 35
Synthesized pulse radar . . . . . . . . . . . . . . . . . . . 6
Tank identifier . . . . . . . . . . . . . . . . . . . . 17, 43, 46
Tank separator . . . . . . . . . . . . . . . . . . . . . . . 7, 48
Temperature
average . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 9
spot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 9
Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 47
Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . 23, 38
Transmission address . . . . . . . . . . . . . 17, 43, 46
Transmission speed . . . . . . . . . . . . . . . 17, 43, 46
Ullage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Upper reference . . . . . . . . . . . . . . . . . . . . . . . . 30
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Warning code ICU (APU part) . . . . 22, 36, 40, 41
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Notes
Instruction manual 973 SmartRadar LT
Page 55
Notes
Page 56

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