Rosemount Tank Radar REXX Radar Level Gauge User Manual Installation manual

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Date Submitted	1999-03-22 00:00:00
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Creation Date	1995-06-15 10:36:09
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Document Title	Installation manual

INSTALLATION
MANUAL
US Version
W12
W12
W11
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
"i"
Parabolic
Antenna
Gauge
Horn
Antenna
Gauge
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Still Pipe
Gauge
Copyright © June 1995
Saab Marine Electronics AB
LPG/LNG
Gauge
Installation Manual
Copyright © June 1994
Saab Marine Electronics AB
The contents, descriptions and specifications within this manual is
subject to change without notice. Saab Marine Electronics AB
accepts no responsibility for any errors that may appear in this
manual.
The manuals available for TankRadar L/2 are
Technical Description
Installation Manual
Operator’s Manual
Operator’s Manual for OPI/2
COS Operator’s Manual
Service Manual
The Technical Description contains all technical data on the various parts of the TankRadar L/2 System.
The Installation Manual is used for planning and performing the
installation of the system.
Once the parts of the system have been installed, then use either
the Operator’s Interface (OPI) or the Configuration Software
(COS) to configure the system. See the OPI Operator’s Manual or
the COS Operator’s Manual for detailed explanation.
The OPI Operator’s Manual describes how to operate the
TankRadar L/2 System using the Operator’s Interface software on
a personal computer.
The Operator’s Manual for OPI/2 describes Operator’s Interface
with the optional inventory functions included, designated OPI/2.
The COS Operator’s Manual describes how to use the Configuration Software (COS).
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Contents
The manuals available for TankRadar L/2 are ............................................... 2
Denominations and abbreviations used in this manual: .............................. 6
Introduction to the TankRadar L/2 System .................................... 7
Safety ............................................................................................... 10
2.1
2.2
2.3
Description of the Radar Tank Gauges ......................................... 12
3.1
3.2
3.3
3.4
3.5
Transmitter Head ............................................................................. 12
3.1.1
Electronic Unit ............................................................................ 13
3.1.2
Cable Outputs ............................................................................. 13
3.1.3
Power Supply to the Radar Tank Gauge ................................. 14
3.1.4
Barrier Unit Card, BU (Option) ................................................ 14
3.1.5
Current Loop Card, CLC (Option) ........................................... 15
3.1.6
Metrological Seal ........................................................................ 15
3.1.7
Installation Data for the Transmitter Head ............................. 15
Description of the Horn Antenna Gauge, RTG 2920. ................... 16
3.2.1
Installation Data for RTG 2920 ................................................. 16
Description of the Parabolic Antenna Gauge, RTG 2930 ............. 17
3.3.1
Installation Data for RTG 2930 ................................................. 17
Description of the Still Pipe Gauge, RTG 2940 ............................. 18
3.4.1
Installation Data for RTG 2940 ................................................. 18
Description of the LPG/LNG Gauge, RTG 2960 ........................... 19
3.5.1
Installation Data for RTG 2960 ................................................. 19
Description of the Data Acquisition Units ................................... 20
4.1
4.2
4.3
4.4
4.5
4.6
4.7
Intrinsic Safety .................................................................................. 10
Explosion Proof................................................................................. 11
Specific FCC Requirements (US market only) ............................. 11
Connection of the Sensors .............................................................. 20
Selecting the Temperature Range .................................................. 21
Local Readout Display ..................................................................... 21
Write Enable/Inhibit Switch ............................................................ 21
Common Installation Data for Both DAUs ................................... 22
Description of the Slave Data Acquisition Unit, DAU 2100 ......... 22
4.6.1
Installation Data for DAU 2100 ................................................ 22
Description of the Independent Data Acquisition Unit................ 23
4.7.1
Power Supply .............................................................................. 23
4.7.2
Relays (Optional) ........................................................................ 23
4.7.3
Installation Data for DAU 2130 ................................................ 24
Description of the Field Bus Modem, FBM 2170 ......................... 24
5.1
Installation Data for FBM 2170 ................................................. 24
Description of the Field Communication Unit, FCU 2160 ......... 25
6.1
6.2
6.3
6.4
6.5
Communication Ports ..................................................................... 25
FCU Enclosure .................................................................................. 26
FCU Power Supply ........................................................................... 26
Write Inhibit/Enable Switch ............................................................ 26
Installation Data for FCU 2160 ....................................................... 27
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Description of the Junction Boxes ................................................. 28
7.1
7.2
7.3
7.4
Connection to a Plant Host Computer (Plant DCS) .................. 29
8.1
8.2
10
10.2
10.3
10.4
Installation of Horn Antenna Gauge, RTG 2920 ........................... 42
Installation of the Parabolic Antenna Gauge, RTG 2930 ............. 44
Installation of the Still Pipe Gauge, RTG 2940 .............................. 47
Installation of the LPG/LNG Gauge, RTG 2960 ............................ 50
Electrical Installation ...................................................................... 53
12.1
12.2
12.3
12.4
Requirements for the Horn Antenna Gauge, RTG 2920 .............. 32
10.1.1 Free Space Requirement ............................................................ 32
10.1.2 Socket Requirement.................................................................... 33
Requirements for Parabolic Antenna Gauge, RTG 2930.............. 34
10.2.1 Inclination of the Parabolic Antenna Gauge........................... 34
10.2.2 Free Space Requirement ............................................................ 35
10.2.3 Flange Requirements ................................................................. 36
10.2.4 New Tanks ................................................................................... 36
10.2.5 Socket Requirements .................................................................. 37
Requirements for the Still Pipe Gauge, RTG 2940 ....................... 38
10.3.1 Still Pipe Requirements.............................................................. 38
10.3.2 Flange Requirements ................................................................. 38
10.3.3 New Tanks ................................................................................... 39
10.3.3 Service Space ............................................................................... 39
Requirements for the LPG/LNG Gauge, RTG 2960 ..................... 40
10.4.1 Temperature and Pressure Measurement ............................... 40
10.4.2 Still Pipe ....................................................................................... 40
10.4.3 References in Still Pipe ............................................................... 40
10.4.4 System with Reference Pin and Reflector Plug ...................... 41
10.4.5 System with Reference Pins Only ............................................ 41
10.4.6 Extension Pipe for Minimum Distance ................................... 41
Mechanical Installation of the Radar Tank Gauges ...................... 42
11.1
11.2
11.3
11.4
12
Connect to the FCU for Quick Updates ........................................ 30
Connect to OPI/2 for Inventory Data ............................................ 30
Installation Schedule ...................................................................... 30
Requirements on the installation of the Radar Tank Gauges ..... 31
10.1
11
Junction Box JB 8 for Connection of RTG to Slave DAU ............. 28
Junction Box JB 12 for Connection of RTG (with CLC) to
Slave DAU ......................................................................................... 28
Junction Box JB 16 for Connection to RTG and Independent DAU
29
Junction Box JB 36 for Connection of Temperature Sensors ....... 29
Cabling for Power Supply ................................................................ 53
Cabling for TRL/2 Bus ...................................................................... 54
Grounding ......................................................................................... 54
Electrical Installation of the Radar Tank Gauge, RTG .................. 54
12.4.1 The Non-Intrinsically Safe Connection (W11) ........................ 54
12.4.2 The Intrinsically Safe Connection (W12) ................................. 54
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
12.5
12.6
12.7
13
List of Drawings .............................................................................. 57
13.1
13.2
14
Electrical Installation of the Data Acquisition Unit, DAU ........... 55
12.5.1 Electrical Installation of the Slave DAU, DAU 2100.............. 55
12.5.2 Electrical Installation of the Independent DAU, 2130 ........... 55
Electrical Installation of the Field Bus Modem, FBM 2170 .......... 56
Electrical Installation of the Field Communication Unit,
FCU 2160 .......................................................................................... 56
Mechanical Installation .................................................................... 57
Electrical Installation ....................................................................... 57
Description of the Required System Information ....................... 58
14.1
14.2
14.3
System Configuration ...................................................................... 58
System Master .................................................................................. 58
Plant Host Computer System (Plant DCS) .................................. 58
14.1.3 Tank Data ..................................................................................... 58
Required System Information Form ......................................... Appendix 1
Index .................................................................................................... Index 1
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Denominations and abbreviations used in this manual:
BU
CLC
DAU
DMB
DOS
DPS
DXB
EEPROM
FBM
FCC
FCU
FMCW
FSK
IS
JB
LCD
OPI
OS/2
PC
PCB
PROM
PTFE
RF-head
RTD
RTG
TH
TRL
TRL/2
VAC
VDC
Barrier Unit
Current Loop Card
Data Acquisition Unit
DAU Mother Board
Disk Operating System. An operating system
for PC’s.
DAU Power Supply board
DAU Extended Board
Electrically Erasable PROM
Field Bus Modem
Federal Communications Commission
Field Communication Unit
Frequency Modulated Continuous Wave
Frequency Shift Keyed
Intrinsically Safe
Junction Box
Liquid Crystal Display
Operator’s Interface
An operating system for PC’s.
Personal Computer
Printed Circuit Board
Programmable Read Only Memory
Polytetrafluoroethylene. A polymer also marketed as Teflon.
A device for emitting and receiving microwaves.
Resistance Temperature Detectors
Radar Tank Gauge
Transmitter Head
Tank Radar L (First generation)
Tank Radar L/2
Volts Alternating Current
Volts Direct Current
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Introduction to the TankRadar L/2 System
The TankRadar L/2 System is a monitoring and control system for
tank level gauging. The system can interface various sensors, such
as temperature and pressure sensors, for complete inventory
control.
There is a distributed intelligence in the various units of the system. The units continuously collect and process information.
When a request for information is received an immediate response
is sent with updated information. The units communicate with
each other on a field bus, the TRL/2 Bus.
No part of the equipment is in actual contact with the product in
the tank and the antenna is the only part of the gauge that is exposed to the tank atmosphere. The Radar Tank Gauge sends microwaves towards the surface of the product in the tank. The level
is calculated based on the echo from the surface.
TankRadar L/2 can measure the level of almost any product,
including bitumen, crude oil, refined products, aggressive chemicals, LPG and LNG, etc. Using a suitable Tank Connection Unit,
the TankRadar L/2 System can gauge any type of tank.
Operator's
Interface
(IBM PS/2 or
Compaq)
RS232C
Optional Host
Computer or
Slave PC
Optional Second
Tank Group
Modbus
protocol
Analog
outputs
FBM
Control Room Level
Field Level
Field bus
RTG
Analog
inputs
RTG
Slave
DAU
Temp.
sensors
RTG
Slave
DAU
Local
Readout
RTG
RTG
Slave
DAU
Independent
DAU
Temp. Sensors
Press. Transducers
etc
Temp.
sensors
Figure 1.1. Example of a small TankRadar L/2 System.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Operator's
Interface
RS-232C
Plant Host
Computer
Value
Level
Value
Delay
Avg
Pressur
Control
Room
Level
Entry
Tank1
Auto
Level
Temp
Alarm Log
Printer
Hi Lim
Temp
Avg
Pressur
Report
Printer
Auto
Auto
18.000
Lo Lim
120.0
2.000
2.0
Hyst
80.0
HH
Lim
20.000
LL Lim
1.000
0.0
0.200
5.0
Leak
0.5
Limit
0.200
Enter
Enable
Cancel
New
Tank
FBM
TRL/2 Group Bus
To Other
FCUs
FCU
NonHazardous
Area
FCU
Group
Level
FBM To Portable
Service PC
with COS
To Other
Tanks
TRL/2 Field Bus
TRL/2 Field Bus
Hazardous
Area
LPG/LNG
Gauge
RTG
DAU
RTG
Still Pipe
Gauge
DAU
RTG
Parabolic Antenna Gauge
DAU
Field
Level
Temperature
Sensors
Temperature
Sensors
Figure 1.2. Example of a general configuration of a TankRadar L/2 System.
All the measured data is presented to the operator by the
Operator’s Interface, which in its complete version contains inventory functions. A plant host computer can be connected for further
processing of data.
All Saab Tank Control supplied parts for tank top mounting weigh
less than 25 kg (55 lb) (except for pressure flange etc. for the LPG/
LNG Gauge). This makes it possible for one man to carry the
various TankRadar parts to the tank top for installation.
Please read the Technical Description for a more detailed description of the Saab TankRadar L/2 system.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
The basic parts of the TankRadar L/2 System are:
The Radar Tank Gauge, RTG, is an intelligent explosion
protected instrument for measuring the level of a product
inside a tank. Four different Tank Connection Units can be
attached in order to satisfy a variety of different applications.
The Data Acquisition Unit, DAU, can interface various
external sensors and actuators. There are two versions of the
DAU, the Slave DAU and the Independent DAU. The Slave
DAU can measure temperature while the Independent DAU,
in addition to temperature measurement , has analog and
digital inputs. Both versions can, as an option, be equipped
with a LCD-display for local readout of the measured values.
The Field Communication Unit, FCU, acts as a gateway and
data concentrator between the Group Bus and the Field Bus.
Each FCU can have a total of 32 RTGs and 32 DAUs connected to it.
The Field Bus Modem, FBM, is a converter between RS-232C
and the TRL/2 Bus. It is used for connecting a PC with OPI
(or COS) to the TRL/2 Bus.
The Operator’s Interface, OPI, is a software for presenting
the values measured in the TRL/2 system. The Operator’s
Interface is also used to set alarm limits, perform setups,
configuration and calibration of the TRL/2 System.
The Configuration Software, COS, is normally used on a
portable Service PC, operating under DOS. The Service PC
can be connected to one of the FCUs Group Bus ports or
directly to the Field Bus via an FBM. It is used for service,
configuration and calibration purposes. It is not a substitution for the more powerful OPI.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Safety
TankRadar L/2 equipment is often used in areas where flammable
materials are handled and where an explosive atmosphere may be
present. To protect both the plant and the personnel, precautions
must be taken to ensure that this atmosphere cannot be ignited.
These areas are called hazardous areas and equipment within
these areas must be explosion protected.
A number of different explosion protection techniques have been
developed over the years. Intrinsic safety and explosion proof (or
flame proof) safety are two techniques.
2.1
Intrinsic Safety
Intrinsic safety, IS, is based on the principle of restricting electrical
energy available in hazardous-area circuits such that any sparks or
hot surfaces, that may occur as a result of electrical faults in components, are too weak to cause ignition. Intrinsic safety is the only
technique accepted for Zone 0 hazardous areas. It is also safe for
personnel and allows equipment to be maintained without the
need for a gas-free certificate.
For example, the temperature measurement of the DAUs is intrinsically safe.
The basic principles of intrinsic safety are:
All flammable materials are grouped according to the energy
needed to ignite them.
Equipment located in hazardous areas are classified according to the maximum surface temperature that it can produce
and this must be safe with the flammable gases that may be
present.
Hazardous areas are classified according to the probability
that an explosive atmosphere is present, and this dictates
whether or not a particular explosion protection technique
may be used.
Important!
For trouble shooting and repair work of components in or in connection
to intrinsically safe equipment, strict observance of the following rules is
necessary:
Disconnect the power supply to the Radar Tank Gauges or the
Independent Data Acquisition Units.
Use a certified battery operated instrument only.
Use Saab original spare parts only. Replacement with non-original
spare parts may jeopardize the intrinsic safety.
10
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
2.2
Explosion Proof
Explosion proof enclosures can be used when an explosion can be
allowed inside the enclosure as long as it does not spread to the
outside of it. The enclosure must be strong enough to withstand
the pressure and must have narrow gaps to allow the pressure to
escape without igniting the atmosphere outside of the equipment.
Important!
Any substitution to non-recognized parts may impair intrinsic safety.
The explosion-proof (flame-proof) enclosures of the Transmitter Head and
the Independent Data Acquisition Unit must not be opened while the
units are powered.
2.3
Specific FCC Requirements (US market only)
Saab TankRadar L/2 generates and uses radio frequency energy. If
it is not installed and used properly, that is, in strict accordance
with the manufacturer's instructions, it may violate FCC regulations on radio frequency emission.
Saab TankRadar L/2 has been FCC certified under test conditions
which assume a metallic tank. Installation on a non-metallic tank
is not certified, and is not allowed.
The FCC certificate for TankRadar L/2 requires that the tank is
closed as far as emitted radio energy is concerned. Tanks with
open manholes, external-floating-roof tanks without still pipes etc.
are not covered by the certificate.
To ensure that no installations are made against the FCC rules, the
additional list in Appendix 5 of Tank Data at the end of this
manual must be completed and returned to Saab Tank Control for
evaluation and approval.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
11
Installation Manual
Description of the Radar Tank Gauges
Depending on the type of tank connection unit that the Transmitter Head is mounted on, there are four types of Radar Tank
Gauges:
•
The Horn Antenna Gauge, RTG 2920, for fixed roof installation without still pipe.
•
The Still Pipe Gauge, RTG 2940, for measuring in still pipes.
•
The Parabolic Antenna Gauge, RTG 2930, for demanding
environments without still pipe.
•
The LPG/LNG Gauge, RTG 2960, for liquid gas, LPG and
LNG.
3.1
Transmitter Head
The same Transmitter Head is used on all four types of Radar Tank
Gauges.
Transmitter Head
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Horn
Antenna
Gauge,
RTG 2920
W12
W11
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
Parabolic
Antenna
Gauge,
RTG 2930
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
"i"
Still Pipe
Gauge,
RTG 2940
LPG/LNG
Gauge,
RTG 2960
Figure 3.1 shows the Transmitter Head
12
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Safety enclosure
Mounting
pins for
Weather
Protection
Hood
Electronic Unit
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Intrinsically safe
connection for
Slave DAU
Non-intrinsically
safe connection
for power and
TRL/2 Bus
Ground connection
Figure 3.2 shows the Transmitter Head
3.1.1
3.1.2
Electronic Unit
The Electronic Unit is placed inside the safety enclosure of the
Transmitter Head. The Electronic Unit includes the microwave
unit, and cards for signal processing, data communication, and
power supply with transient protection.
A number of options require that cards are included in the Electronic Unit.
Cable Outputs
The Transmitter Head has one or two cable outlets. One is for the
non-intrinsically safe power connection and the connection to the
TRL/2 Bus. The other is for the intrinsically safe connection of the
optional Slave Data Acquisition Unit, and/or the optional analog
inputs and outputs of the Current Loop Card. The wires are
clearly marked with numbers and the designation of the wires is
shown on a printed plate at the cable outputs.
Option
W-12 Connection
Barrier Unit
Current Loop Card
Slave DAU
8-wire lead seal
Required
Not required
Current Loop Card
2 inputs + 2 outputs
12-wire lead seal
Not required
Required
Slave DAU and
Current Loop Card
2 inputs + 2 outputs
12-wire lead seal
Required
Required
Current Loop Card
3 inputs + 2 outputs
12-wire lead seal
Not required
Required
Table 3.1. The table describes what is required when the optional Slave
DAU and/or the optional Current Loop Card are included.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
13
Installation Manual
3.1.3
Power Supply to the Radar Tank Gauge
There is a switch on the Electronic Unit for setting of the power
supply to 115 V or 230 V. As standard the switch is set to 230 V.
Figure 3.3.
MAINS
Note: Do not turn
the switch all the
way around as it
may damage the
switch.
Figure 3.4.
Note: On the label
on top of the Transmitter Head, there is
a box that must be
marked with an "X"
if you set the switch
to 115 V. See figure
3.3. Always check
this label before
connecting power to
the Electronic Unit.
3.1.4
VOLTAG
115 V
230 V
To select supply voltage, remove the cover of the Safety Enclosure
and set the switch on the Electronic Unit to either 115 V or 230 V.
See figure 3.3
OR
SELECT
30V
115V/2
TO
TAGE DE
TSI
ED VOL
ON OU
SELECT
RKED
BE MA
EPLATE
NAM
Mark the box on the
RTG name plate if the
power setting has been
changed to 115 VAC.
Radar Unit Type TH 2000
EEx dIIB T4
T amb = -40 to +65°C
BASEEFA Ex91C1065X
Box marked when this enclosure
contains Associated Electrical
Apparatus. Component Certificate
BAS Ex91C2065U coded [EExia]IIC
BAS Ex93C2043U coded [EExia]IIB
W12
Hazardous Location Class I
Group C and D. (Intrinsically Safe
outputs Group A,B,C and D)
Temperature Coide T4.
Leads factory sealed. The device
provides intrinsically safe outputs
See control drawing 9150057-901
Ambient temperature -40 to + 65°C
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
RTG
Ex
RTG
name
plate
LISTED 939U
Mains wired for 230 VAC 0.4A
Mark Box if re-wired for 115 VAC 0.8A
Selector inside enclosure.
Serial no:
UI:
Mains wired for 230 VAC 0.4A
Mark Box if re-wired for 115 VAC 0.8A
Selector inside enclosure.
Serial no:
UI:
CAUTION: To prevent ignition of hazardous
atmospheres, disconnect the device from the
supply circuit before opening. Keep assembly
closed when in operation.
Do not open while enrgized.
Ne pas ouvrir sous tension.
CAUTION: To prevent ignition of hazardous
atmospheres disconnect the device from th
A division of Saab Marine Electronics AB
MADE IN SWEDEN
Barrier Unit Card, BU (Option)
The optional Barrier Unit Card is used when a Slave Data Acquisition Unit is connected to a Radar Tank Gauge. It provides intrinsically safe power and communication between the Slave DAU and
the RTG. The Barrier Unit is installed inside the Transmitter Head.
The Barrier Unit is connected to the Slave DAU through the Intrinsically Safe Connection W12 on the Radar Tank Gauge.
Note: Installation of the Barrier Unit Kit, the Current Loop Card or the
Metrological Seal may only be done by personnel from Saab Tank Control.
14
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
3.1.5
Current Loop Card, CLC (Option)
The optional Current Loop Card provides intrinsically safe 4-20
mA inputs and outputs. The inputs can be used for example for
pressure sensors, while the outputs can be used for pointer instruments or for output of a measured value as an analog signal.
If a Slave DAU is also connected, two 4-20 mA inputs and two 420 mA outputs are available. If a Slave DAU is not connected, one
additional 4-20 mA input is available, although this transducer
must have its own intrinsically safe power supply.
When the optional Current Loop Card is used, the JB 12 Junction
Box from Saab Tank Control is recommended since the cables are
separated inside the box according to the requirements for intrinsic safety. See chapter 7.2.
Analog
inputs
Analog
outputs
~2 m cable
with
protective
hose
~2 m cable
with
protective
hose
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
JB 12
"i"
Transmitter Head with
Current Loop Card
JB 16
Signal
Power
230/115 V
Figure 3.5 shows a Transmitter Head with a Current Loop Card.
3.1.6
3.1.7
Metrological Seal
The Metrological Seal consists of a rod that can activate a writeenable switch from the outside of the Transmitter Head. This rod
can be sealed in the write-inhibit position to prevent unauthorized
changes in the database.
If there is no Metrological Seal mounted, then the Transmitter
Head is always in write-enable mode.
Installation Data for the Transmitter Head
Ambient operating temperature: -40°C to +65°C
(-40°F to +149°F)
Explosion protection
Class 1, Div I, Groups C and D
(UL1203, UL913 USA) and
EEx d[ia] IIB T4 (EN50014,
EN50018 and EN50020 Europe)
Power Supply
115 or 230 VAC, +10% to -15%,
50-60 Hz, max. 80 W
Field bus
TRL/2 Bus (FSK, half duplex,
two wires, galvanically isolated, 4800 Baud)
Saab TankRadar L/2
US Version. Seventh edition, June 1995
15
Installation Manual
3.2
Description of the Horn Antenna Gauge, RTG 2920.
The Horn Antenna Gauge is designed for easy mounting in small
size openings on tanks with fixed roof. A flange with a diameter of
8" is enough to mount the RTG 2920.
The RTG 2920 is designed for measurement of a variety of oil
products and chemicals except for bitumen/asphalt and similar
products where the Parabolic Antenna Gauge RTG 2930 is recommended.
The wide beam of the Horn Antenna Gauge is a disadvantage in
narrow tanks with internal structures. In such cases the Parabolic
Antenna Gauge is generally recommended.
The Horn Antenna Gauge is delivered with one of two types of
flanges. One flange is for straight mounting. The other flange is
used for inclined mounting.
3.2.1
See also chapter 10.1 for installation requirements for the Horn
Antenna Gauge.
Installation Data for RTG 2920
Operating temperature in tank
Max. +150°C (+300°F)
Min. -40°C (-40°F)
Measuring range
0.85 to 30 m below flange
(2.7 to 66 ft.)
Pressure
-0.5 to 2 bar
Total weight
Appr. 20 kg (44 lbs.)
Socket size
Min. 8"
Weather
Protection
Hood
0.35 m
Closing
Transmitter
Head
Cone
Figure 3.6 shows the Horn Antenna Gauge.
16
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
3.3
Description of the Parabolic Antenna Gauge, RTG 2930
The Parabolic Antenna Gauge RTG 2930 measures level of all
types of liquids, from light products to bitumen/asphalt. The
gauge is designed for mounting on tanks with fixed roofs and has
custody transfer accuracy.
The design of the parabolic antenna provides extreme tolerance
against sticky and condensing products.
3.3.1
See also chapter 10.2 for installation requirements for the Parabolic
Antenna Gauge.
Installation Data for RTG 2930
Operating temperature in tank
Max. +230°C (+445°F)
Measuring range
0.8 to 40 m below flange
(2.7 to 131 ft.)
Pressure
-0.5 to 2 bar
Total weight
Appr. 25 kg (55 lbs.)
Socket size
Min. 20"
Weather
Protection
Hood
0.75 m
Transmitter
Head
Closing
Inclination
Device
Adaptor
Flange
Parabolic
Reflector
Antenna
Feeder
0.45 m
Figure 3.7 shows the Parabolic Antenna Gauge.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
17
Installation Manual
3.4
Description of the Still Pipe Gauge, RTG 2940
The Still Pipe Gauge is used on tanks with still pipes and with all
products suited for still pipes.
The gauge uses a low-loss radar propagation mode which virtually eliminates the influence of the still pipe condition. Measurement is made with highest accuracy even when the pipe is old,
rusty and covered with deposits.
The Still Pipe Gauge fits 6", 8", 10" and 12" pipes. It can be
mounted on an existing still pipe and there is no need to take the
tank out of operation during installation.
3.4.1
See also chapter 10.3 for installation requirements for the Still Pipe
Gauge.
Installation Data for RTG 2940
Operating temperature in tank
Max. +230°C (+445°F)
Measuring range
0 to 40 m from cone end
(0 to 131 ft.)
Pressure
-0.2 to +0.5 bar
Total weight
Appr. 20 kg (44 lbs.)
Still pipe dimension
6", 8", 10" or 12". See table 10.1
for information on schedules.
Weather Protection Hood
Waveguide
Unit
Waveguide
Connection
Transmitter
Head
Stand
Transition
Cone
Sealing
Still pipe
Figure 3.8 shows the Still Pipe Gauge.
18
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
3.5
Description of the LPG/LNG Gauge, RTG 2960
The RTG 2960 is designed for level measurement in LPG and LNG
tanks. A still pipe is required for the measurement. It prevents a
wavy or boiling surface from disturbing the measurement. Radar
signals are transmitted inside the pipe towards the surface.
The pressure sealing is a quarts window approved for use in
pressure vessels. As standard the gauge is also equipped with a
fire-proof block valve and a vapor space pressure sensor.
The LPG/LNG Gauge is available in three different versions, a 150
PSI version, a 300 PSI version and a 600 PSI version.
The patented reference pin function enables verification of measurement without opening the tank. There is a Reference Pin at the
top of the still pipe and a Reference Plug made of epoxy resin at
the bottom. If epoxy can not be used in the tank, two or three
reference pins can be used without the Reference Plug. By setting
the gauge into "test mode" it measures against these references
and compares with the actual distances to these references that
were stored during installation.
See also chapter 10.4 for installation requirements for the LPG/
LNG Gauge.
Installation Data for RTG 2960
Operating temperature in tank
Stainless steel flange -66°C to +
90°C (67°F to 194°F)
Measuring range
0 to 40 m from cone end
(0 to 131 ft.)
Pressure
Up to 25 bar (375 PSI)
Still pipe dimension
4" Sch. 10 or 100 mm inner
diameter.
Total weight
150 PSI – appr. 38 kg (84lbs)
300 PSI – appr. 48 kg (106 lbs)
600 PSI – appr. 68 kg (150 lbs)
Weather
3.5.1
0.35 m
Transmitter
Head
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Protection
Hood
W11
Pressure
Transducer
Housing
1.0 m
Valve
Lower Flange
6" Existing
pressure
vessel
flange
Pipe Cone
4" or ø100 mm
Still Pipe
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Figure 3.9 shows
the LPG/LNG
Gauge.
19
Installation Manual
Description of the Data Acquisition Units
The Data Acquisition Unit, DAU, is a complement to the Radar
Tank Gauge and it can interface various external sensors and
actuators. There are two versions of the DAU, the Slave DAU and
the Independent DAU. Both types have interfaces for temperature
measurement.
Figure 4.1 shows the Slave DAU and the Independent DAU.
4.1
Connection of the Sensors
The DAUs can connect up to 14 RTDs (Resistance Temperature
Detectors) on the X21 terminal on the motherboard. See figure 4.2.
Under the lid of the Data Acquisition Unit there are instructions
printed as to how to connect the sensors and transducers.
1 4
7 10
13 1
6 19
22 25
28 3
Connect
temperature
sensors
2 5
8 1
1 14
17 2
0 23
26 2
6 9
12
15
18
21
24
27
30
DAU
34 3
7 40
43
32 3
5 38
41 4
33 3
39
42
45
Connect Reference
Resistor to terminals
43, 44 and 45.
Figure 4.2 shows the wire terminals for the temperature sensors.
20
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
4.2
Selecting the Temperature Range
The multiplexer for the RTDs has two different amplification
factors which are jumper selected. It is also possible to provide an
offset to the measured signal by adding a current to it. The amplification is selected on the X1 and X2 and the offset is selected on
the X3 according to the table in figure 4.3. The standard setting is
from -50°C to +125°C. The database setting of the temperature
range in the Operator’s Interface (OPI) or the Configuration Software (COS) must correspond to the setting of the jumpers.
A high precision reference resistor must be connected to the X21
terminal to positions 43, 44 and 45. Depending on the temperature
range stated in the Required System Information form, one out of
three different reference resistors is chosen and connected. See
figure 4.2 and spare parts list in the Service Manual.
X1 - OPEN
X2 - OPEN
X3 - CLOSED
Temperature Range
Pt 100
X1
X2
X3
-50
+125
°C
OPEN
OPEN
CLOSED
-50
+300
°C
CLOSED
CLOSED
CLOSED
-200
+150
°C
CLOSED
CLOSED
OPEN
Figure 4.3 shows the selection of temperature range.
4.3
Local Readout Display
Both versions can, as an option be equipped with a Local Readout
Display showing the product level as well as the parameters measured by the DAU itself.
Installation data for Local Readout Display
Ambient operating temperature: -30°C (-22°F)
4.4
Write Enable/Inhibit Switch
In order to enable programming of the EEPROM, the S1 switch
must be set in the position, towards the block terminals. The
switch can be locked and sealed in the write inhibit position using
a wire through the clevis pins. See figure 6.3.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
21
Installation Manual
4.5
Common Installation Data for Both DAUs
Ambient operating temperature:
Temperature Sensors
Number of sensor elements
Temperature measuring range
4.6
-40°C to +65°C (-40°F to +149°F)
Pt 100 or Cu 100
Max. 14 per DAU
Range 1: -50 to +125 °C
Range 2: -50 to +300 °C
Range 3: -200 to +150°C
Description of the Slave Data Acquisition Unit, DAU 2100
4.6.1
The Slave DAU is intrinsically safe and is connected to the Radar
Tank Gauge on the same tank. It receives its power supply and
communicates via the Barrier Unit Card in the Radar Tank Gauge.
Installation Data for DAU 2100
Explosion protection
Class 1, Div I, Groups A,B,C
and D (UL913 USA) and
EEx ia IIC T4 (EN50020 Europe)
Power Supply
Intrinsically safe supply from
Radar Tank Gauge
Field bus
Intrinsically safe local line from
Radar Tank Gauge
0.23 m
LCD Display for
Local Readout
0.28 m
TankRadar L/2
Data Acquisition Unit
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Serial no:
Ex
Type DAU 2130
Hazardous Location Class I Gorup C
and D. Temperature Code T4. The device
provides intrinsically safe outputs.
See control drawing 9150 057-901
©
Warning: any substitution of any components
may impair intrinsic safety.
See service manual
Listed 9390
Ambient temperature -40° to +65°C
UL
UI:
Saab Tank Control
A division of Saab Marine Electronics AB
MADE IN SWEDEN
For intrinsically safe circuits only
Cable Outputs
Figure 4.4 shows the Slave Data Acquisition Unit.
22
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
4.7
Description of the Independent Data Acquisition Unit
4.7.1
Warning: The DPS board inside the flameproof enclosure of the Independent DAU contains powered circuits on easily accessible components.
In addition to the temperature measurement, the Independent
DAU has four analog inputs and eight digital inputs as well as
four relay outputs. The Independent DAU communicates directly
on the TRL/2 Bus.
Power Supply
Power supply voltage to the Independent DAU is selected as
either 115 V or 230 V. The voltage is selected by jumpers in X5, a 4pole screw terminal. The jumper is set to 230 V as standard. See
figure 4.5.
Note: The setting of the voltage is marked on the nameplate. If the switch
is set to 115 V, mark the box on the nameplate: “Mark box If re-wired for
115 VAC”.
aa
x:in
ma
.3
ta
=1
Ta
Ele
is
cq
itio
it
yp
tr
SW
IN
ou
Gr
©
9U
93
/2
TE
LIS
EN
ED
ar
ad
MA
DE
Ha
an za
pro d D. rdo
Se vid Te us
Wa e es mp Lo
co
ca
ma rni ntr int era tio
Se y ng ol rin tur n
sic
im :
Cl
Am e pa an dra all e as
se
Co
bie rvi ir y su wi y de s
ng sa
nt ce int bs
fe T4
rin
tem ma
titu 91 ou
sic
50
Th
pe nu sa tio 05 tpu
rat al fet n of 7-9 ts. e de
ure
vic
y co 01
mp
-40
on
°
to
en
+6
ts
5°
UI
kR
AB
ics
on
its
ctr
cu
cir
rin
Ma
fe
sa
Ta
ab
all
Sa
sic
of
rin
on
int
isi
div
Fo
EE
T x ia
am
BA b
SE =C
EF 40 T4
ma
A °
x:in
Ex to
91 +6
=2 C2 5°
06
=0 =3 8
94
VD 9
mA
eq
DC
=0
x:in
ma
eq
l no
ria
Se
ly
on
Figure 4.5 shows the voltage setting. Set 2-3 for 230 VAC. Set 1-2 and 34 for 115 VAC.
4.7.2
Relays (Optional)
There are four relays on the Independent DAU. The relays can be
activated by the level measured by the associated RTG or by any
of the parameters measured by the Independent DAU itself.
The optional relays of the Independent DAU can be selected as
either normally open or normally closed. This is done by setting a
two way cable connector in alternative positions in a three pin
header connector. See figure 4.6.
US Version. Seventh edition, June 1995
-N
Saab TankRadar L/2
NO
Figure 4.6. Plug
connector in appropriate position for
normally open or
normally closed
operation of the
relay.
23
Installation Manual
4.7.3
Installation Data for DAU 2130
Explosion protection
Class 1, Div I, Groups C and D
(UL1203, UL913 USA) and
EEx d[ia] IIB T4 (EN50014,
EN50018 and EN50020 Europe)
Power Supply
115 or 230 VAC, +10% to -15%,
50-60 Hz, max. 10 W
Field bus
TRL/2 Bus (FSK, half duplex,
two wires, galvanically isolated, 4800 Baud)
Current inputs
4-20 mA. Intrinsically safe.
Number of current inputs
Max. 4, multiplexed, only one is
powered at a time
Number of status and frequency
inputs
Max. 8. Intrinsically safe.
Number of relay outputs
Max. 4
Relay contact rating
250 VAC / 5A (resistive load)
Description of the Field Bus Modem, FBM 2170
The Field Bus Modem, FBM, is a converter between RS-232C and
the TRL/2 Bus. It is used for connecting a PC with OPI (or COS) to
the TRL/2 Bus.
5.1
Note: No explosion protection is provided, so the Field Bus Modem must
be installed in a non-hazardous area.
Installation Data for FBM 2170
Power supply
From AC/DC converter supplied by Saab Tank Control. 615 V, 10 mA).
Cable to PC
Supplied by Saab Tank Control
Explosion protection
None
0.115 m
Saab Marine
Electronics
0.065 m
X2
Conn.
to PC
X1
Conn. to
TRL/2
Field Bus
Figure 5.1 shows the Field Bus Modem.
24
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Description of the Field Communication Unit,
FCU 2160
The Field Communication Unit continuously polls data from the
Radar Tank Gauges and the Data Acquisition Units and stores it in
a buffer memory. The Field Communication Unit is the master on
the Field Bus but acts as a slave on the Group Bus.
Note: No explosion protection is provided, so the Field Communication
Unit must be installed in a non-hazardous area.
6.1
Communication Ports
The Field Communication Unit has six communication ports, X1
to X6. The ports can be individually configured as either Group
Bus or Field Bus ports. There can be maximum four Group Buses
or four Field Buses at the same time. Maximum configuration can
be 2+4, 3+3 or 4+2 buses of each kind. However, ports X5 and X6
are never configured as Field Bus ports, while the X1 and X2 ports
are never configured as Group Bus ports.
As standard the Field Communication Unit is delivered with six
FCM interface boards for four Field Bus ports and two Group Bus
ports.
The table below shows the maximum configurations of an extended FCU:
Ports:
X1
X2
X3
X4
X5
X6
Alternative 4+2:
FB
FB
FB
FB
GB
GB
Alternative 3+3:
FB
FB
FB
GB
GB
GB
Alternative 2+4:
FB
FB
GB
GB
GB
GB
There are also two jumper connectors delivered with each unit.
These can be connected to the X5 and/or X6 for RS-232C Group
Bus communication. See figure 6.1.
Any of the FCM interface boards can be replaced with FCI interface boards for RS-485 communication.
Note: The wire terminals 1 and 3 respectively 2 and 4 on FCM board
connector are parallel connected. See installation drawing.
Figure 6.1 shows the
bus ports on the
Field Communication Unit.
X6
X5
X4
X3
X2
X1
TRL/2 Bus Interface
boards, FCM boards
Jumper for
RS-232C
Saab TankRadar L/2
US Version. Seventh edition, June 1995
25
Installation Manual
6.2
FCU Enclosure
As standard the Field Communication Unit is shipped in a
weather protected, wall-mounted box of the same type as the Data
Acquisition Unit. The Field Communication Unit is built on a
Printed Circuit Board and may be delivered as such for mounting
within a customer supplied enclosure.
6.3
FCU Power Supply
There is a switch to select the supply voltage to either 115 V or 230
V. The switch is set to 230 V as standard. See figure 6.2.
If the switch is set to 115 V, mark the box on the nameplate: “Mark
box If re-wired for 115 VAC”.
NOTE: Do not turn the switch all the way around as it may damage the
switch.
115 V
230 V
Figure 6.2. Setting of the supply voltage to the FCU.
6.4
Write Inhibit/Enable Switch
There is a write inhibit switch in the FCU. It can be locked in the
write inhibit position by securing a locking plate with a wire
through the clevis pins, see figure 6.3.
Reset switch
Write inhibit
230 V
115 V
Write
enable
Figure 6.3. Write enable/inhibit switch.
26
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
6.5
Installation Data for FCU 2160
Ambient operating temperature:
-40°C to +65°C
(-40°F to +149°F)
Power Supply
115 or 230 VAC, +10% to -15%,
50-60 Hz, max. 80 W
Group bus interface
TRL/2 Bus, RS-232 or RS-485
Field bus interface
TRL/2 Bus. Max 16 units on
one port
Ambient operating temperature: -40°C to +65°C
(-40°F to +149°F)
Explosion protection
None
Number of RTGs and/or Independent DAUs Max. 32 RTGs and
32 DAUs
0.23 m
0.28 m
TankRadar L/2
Field Connection Unit
Serial no:
Type FCU 2160
UI:
Saab Tank Control
A division of Saab Marine Electronics AB
MADE IN SWEDEN
Ground
Connection
Cable Outputs
Figure 6.4. The Field Communication Unit.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
27
Installation Manual
Description of the Junction Boxes
Saab Tank Control can supply a series of junction boxes for the
connection of the various units in the TankRadar L/2 system.
7.1
Junction Box JB 8 for Connection of RTG to Slave DAU
The JB 8 should only be used for intrinsically safe connections. It is
used when a Slave DAU is located more than 1.6 m away from the
RTG. It contains eight terminals, two holes for PG 16 glands, one
PG 16 gland for cable diameter 11-15 mm.
DAU
TH
TankRadar L/2
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
~ 2 m wires with
protective hose
Data Acquisition Unit
JB 8
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Ex
Type DAU 2130
Hazardous Location Class I Gorup C
and D. Temperature Code T4. The device
provides intrinsically safe outputs.
See control drawing 9150 057-901
©
Warning: any substitution of any components
may impair intrinsic safety.
See service manual
Listed 9390
Ambient temperature -40° to +65°C
UL
UI:
Serial no:
Saab Tank Control
MADE IN SWEDEN
A division of Saab Marine Electronics AB
For intrinsically safe circuits only
Cable
"i"
2 pcs PG 16
Figure 7.1 shows the JB 8 Junction Box.
7.2
Junction Box JB 12 for Connection of RTG (with CLC) to
Slave DAU
The JB 12 should only be used for intrinsically safe connections. It
is used when a Current Loop Card is included in the RTG. It contains 12 terminals, various holes for glands from PG 13.5-PG 16.
Six glands PG 13.5 for cable diameters 11-15 mm are included. See
also chapter 3.1.5.
2 pcs PG 16
TH
DAU
TankRadar L/2
Data Acquisition Unit
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Serial no:
Ex
Type DAU 2130
Hazardous Location Class I Gorup C
and D. Temperature Code T4. The device
provides intrinsically safe outputs.
See control drawing 9150 057-901
©
Warning: any substitution of any components
may impair intrinsic safety.
See service manual
Listed 9390
Ambient temperature -40° to +65°C
UL
UI:
Saab Tank Control
A division of Saab Marine Electronics AB
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
W11
~ 2 m wires with
protective hose
MADE IN SWEDEN
For intrinsically safe circuits only
Cable
"i"
Analog
inputs
JB 12
Analog
outputs
6 pcs PG 13.5
Figure 7.2 shows the JB 12 Junction Box.
28
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
7.3
Junction Box JB 16 for Connection to RTG and Independent DAU
The JB 16 is an EEx "e" approved junction box, used for connecting
power and TRL/2 Bus to the RTG and the Independent DAU. It
contains 16 terminals, a flexible hose for the cabling to the RTG or
DAU, a mounting plate and various holes for glands from PG1621. Four glands are included for cable diameters 8-18 mm.
7.4
Junction Box JB 36 for Connection of Temperature Sensors
~2 m wires
with
protective
hose
JB 16
JB 16 for
Relay Output
Independent
DAU
TH
6 pcs PG 21
TankRadar L/2
Data Acquisition Unit
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Serial no:
Ex
Type DAU 2100
Hazardous Location Class I Group A, B, C
and D. Temperature Code T4.
Intrinsically safe for use in connection
with Radar Unit TH 2000- TH 2014.
See control drawing 9150 057-901
Warning: any substitution of components
may impair intrinsic safety
See service manual
Ambient temperature -40° to +65°C
UL
©
Listed 9390
UI:
Saab Tank Control
A division of Saab Marine Electronics AB
MADE IN SWEDEN
For intrinsically safe circuits only
Figure 7.3 shows
the JB 16 junction
Box.
W12
JB 16
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
~2 m wires with
protective hose
Signal
Power 230/115 V
The JB 36 is used for the intrinsically safe connection of up to 14
temperature sensors to a DAU.
Connection to a Plant Host Computer (Plant DCS)
DAU
JB 36
TankRadar L/2
Data Acquisition Unit
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Ex
Type DAU 2130
Hazardous Location Class I Gorup C
and D. Temperature Code T4. The device
provides intrinsically safe outputs.
See control drawing 9150 057-901
©
Warning: any substitution of any components
may impair intrinsic safety.
See service manual
Listed 9390
Ambient temperature -40° to +65°C
UL
2 pcs PG 21
1 pc PG 16
UI:
Serial no:
Saab Tank Control
A division of Saab Marine Electronics AB
MADE IN SWEDEN
For intrinsically safe circuits only
Cable
Tempsensor
Pt100 - up to 12 sensors
Cu100 - up to 14 sensors
DAU
JB 36
TankRadar L/2
Data Acquisition Unit
EEx ia II C T4
Tamb = -40° to +65°C
BASEEFAEx91C2069
Umax:in = 28 VDC Wmax:in = 1.3 W
Imas:in = 394 mADC
Ceq = 0 Leq = 0
Ex
Type DAU 2130
Hazardous Location Class I Gorup C
and D. Temperature Code T4. The device
provides intrinsically safe outputs.
See control drawing 9150 057-901
©
Warning: any substitution of any components
may impair intrinsic safety.
See service manual
Listed 9390
Ambient temperature -40° to +65°C
UL
UI:
Serial no:
Saab Tank Control
A division of Saab Marine Electronics AB
MADE IN SWEDEN
For intrinsically safe circuits only
Cable
Figure 7.4 shows
two alternative
connections of the
JB 16 Junction Box.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
2 pcs PG 21
1 pc PG 16
Tempsensor
Pt100 - up to 12 sensors
Cu100 - up to 14 sensors
29
Installation Manual
A host computer can be connected either to a PC with OPI Software or directly to the Field Communication Units (FCUs).
The TRL/2 system can be connected to all major DCS systems,
such as Foxboro, Honeywell, Rosemount and Yokogawa. New
interfaces can be developed on request. For a complete list of the
available interfaces, please contact Saab Tank Control or one of its
representatives.
8.1
Connect to the FCU for Quick Updates
When a host computer is connected to one or several FCUs, measured data such as level, average temperature, pressure, etc. can be
transferred to the host system. If the host system has inventory
functions, a connection directly to the FCUs is recommended.
8.2
Connect to OPI/2 for Inventory Data
When a host computer is connected to the OPI/2, calculated data
such as volume, mass and density can be communicated in addition to the measured data mentioned in chapter 8.1 above.
Installation Schedule
Operator's
Interface
Value
Level
Value
Temp
Auto
Level
Delay
Avg
Pressur
Temp
Avg
Pressur
Measured data:
Level, Temperature, Pressure, etc.
Entry
Tank1
Hi Lim
18.000
Auto
120.0
Auto
2.0
Hyst
Lo Lim
2.000
80.0
HH
Lim
20.000
LL Lim
1.000
0.0
0.200
5.0
Leak
0.5
Limit
0.200
Enter
Enable
Cancel
New
Calculated data:
Volume, Mass, Density, etc.
Tank
FBM
TRL/2 Group Bus
FCU
FCU
FBM
Measured data:
Level, Temperature, Pressure, etc.
Figure 8.1 shows two different ways of connecting a host computer to the TRL/2 system.
30
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
1.
2.
3.
4.
5.
6.
7.
8.
Customer receives the Installation Manual with the Required
System Information Form.
The completely filled in Required System Information Form,
tank farm layout drawings and cabling drawings are sent to
Saab Tank Control representative 1-3 months prior to delivery, depending on system size.
The Installation drawings are reviewed and approved by
Saab Tank Control or Saab Tank Control representative.
Allow approximately 2 weeks for review and return.
Inspection at Saab Tank Control before delivery (when requested).
Customer receives and installs the TRL/2 System according
to the Installation Manual.
Data sheets are completed and a system configuration chart
are made by the customer as a preparation for the start up of
the system. See Service Manual for instructions.
System is started up by customer (after completed training)
or a Saab Tank Control Representative according to Service
Manual.
Send Commissioning Check List to Saab Tank Control.
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Installation Manual
10 Requirements on the Installation of the Radar Tank
Gauges
To achieve precise and trouble free measurement, it is very important to mount the Radar Tank Gauge correctly on the tank.
Please note that if an ullage plug is required, it has to be installed
separately as there is no ullage plug on the Horn Antenna Gauge
or the Parabolic Antenna Gauge.
Note: Please see the installation drawings for more information. There is
a list of drawings in chapter 13.
10.1 Requirements for the Horn Antenna Gauge, RTG 2920
The Horn Antenna Gauge, RTG 2920, must be installed so that
there are no pipes or other obstacles that could prevent the radar
beam to reach the bottom unobstructed. Please refer also to the
mechanical installation drawing for more information on the
installation requirements of the Horn Antenna Gauge.
See installation drawing for requirements on service space.
Note: Levels closer than approximately 850 mm from the flange, cannot
be measured with the highest accuracy.
10.1.1 Free Space Requirement
The radar beam spreads over 30°. There are two flanges available
for the Horn Antenna Gauge. One inclines the gauge 4° and the
other is horizontal. See installation drawing for flange dimensions.
If the wall would intrude into the 30° radar beam with a vertical
antenna axis, the 4° flange has to be used so that the radar beam is
Tank
wall
Antenna
axis
Tank
wall
Antenna
axis
30° radar
beam
Figure 10.1 shows
the free space requirements for the
Horn Antenna
Gauge.
32
30° radar
beam
Vertical
plumb
line
Vertical
plumb
line
4° ± 1°
Saab TankRadar L/2
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Installation Manual
directed away from the wall. This inclination is necessary to ensure maximum accuracy.
If the wall does not intrude into the 30° radar beam when the
antenna axis is vertical, the horizontal flange can be used.
For special cases, where the maximum accuracy is not necessary,
the horizontal flange can be used even when the wall intrudes into
the radar beam. In doubtful cases, please contact Saab Tank Control or one of its representatives.
10.1.2 Socket Requirement
Maximum height of socket is 330 mm.
Socket
height
max.
330 mm
Figure 10.2.
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Installation Manual
10.2 Requirements for Parabolic Antenna Gauge, RTG 2930
Please refer also to the mechanical installation drawing for more
information on the installation requirements for the Parabolic
Antenna Gauge.
See also installation drawing for requirements on service space.
10.2.1 Inclination of the Parabolic Antenna Gauge
The radar beam should be directed 1.5° towards the tank center.
Generally an Inclination Device must be used to ensure the correct
angle of the gauge. However, for products with high condensation, like bitumen/asphalt applications, the radar beam should be
directed vertically without any inclination towards the tank center.
When the Inclination Device is used the plane of the cover is allowed to lean a maximum of 5.5° away from the tank wall and a
maximum of 2.5° towards the tank wall. It must also be horizontal
within ± 4° along the tank wall. See figure 10.3.
If the plane of the cover has an inclination of 1°-2° away from the
tank wall and is horizontal within 1° along the wall then the Parabolic Antenna Gauge can be directly mounted on the cover without the use of the Inclination Device. See figure 10.3.
With Inclination Device
Without Inclination Device
±4°
HOR
IZON
2.5° M
AX
MAX
±1°
MAX
TAL
HOR
IZO
5.5
ALL
NK W
TA
HOR
IZO
NTA
°M
NTA
1°
AX
ALL
NK W
-2
°
TA
Figure 10.3 shows the requirements on the flange for RTG 2930 with and without the Inclination Device.
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Installation Manual
10.2.2 Free Space Requirement
The radar beam of the Parabolic Antenna Gauge is 10° wide. Obstacles (construction bars, pipes larger than Ø 2", etc.) within the
radar beam are generally not accepted, as these can give a disturbing echo, see figure 10.11. However, in most cases, a smooth tank
wall or heating coils can be accepted in the radar beam, since the
interference from these can be regarded as small. For evaluation
contact Saab Tank Control.
5°
5°
Free
passage
Vertical
plumb line
Antenna
axis
1.5°
Figure 10.2 shows the free space requirements for RTG 2930.
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Installation Manual
10.2.3 Flange Requirements
The Parabolic Antenna Gauge can mounted on a welding neck
flange that is welded to the cover or fixed to the cover with eight
M16-stud screws welded onto the cover.
The dimensions of the welding neck flange are stated on the installation drawing for RTG 2930, see list of drawings in chapter 13.
See figure 10.5.
Welding Neck
Flange
Ullage plug
for hand dipping.
Cover
Hole Ø 145 mm must
be made for Welding
Neck Flange
Figure 10.5 shows a welding neck flange for RTG 2930.
If the Parabolic Antenna Gauge is mounted with stud screws
directly onto the cover then the surface for the gasket must be
smooth in order to provide a good sealing. See figure 10.6. The top
of the cover must have a 145 mm diameter hole through which the
antenna is mounted. It must be possible to remove the cover when
installing the antenna. Refer to installation drawing for manufacturing of cover, see list of drawings in chapter 13.
Ø 145 mm
M16 (8X)
Cover
Ullage plug
for hand dipping.
Sealing surface
must be smooth.
Figure 10.6. The gauge can be mounted on a manhole cover.
10.2.4 New Tanks
At new installations the distances from the tank wall to the antenna axis should be 0.8 m or larger.
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Installation Manual
10.2.5 Socket Requirements
When using a Ø 20" socket the height of the socket must not exceed 0.6 m.
If a socket with a larger diameter is used then the height can also
be larger. In this case there must be a free passage for the radar
beam within a 5° angle from the edge of the Parabolic Reflector to
the bottom end of the socket. See figure 10.7.
Note: The distance from the top of the customer’s flange to the maximum
product surface should not be less than 1.0 m. The highest accuracy
cannot be maintained at distances less than 1.0 m.
Larger than
Ø 20"
Bottom of flange
Max
100 mm
Min 1.0 m
to product
surface
5° Min
Socket
height
max
0.6 m
5° Min
Ø 455 mm
Vertical
Plumb Line
Figure 10.7 shows the requirements on the socket to RTG 2930.
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Installation Manual
10.3 Requirements for the Still Pipe Gauge, RTG 2940
Please refer also to the mechanical installation drawing for more
information on the installation requirements.
10.3.1 Still Pipe Requirements
The Still Pipe Gauge fits 6", 8", 10" and 12" flanges and pipes. This
adaption is accomplished by selecting a suitable Transition Cone.
The gauge has a meeting flange for sealing of the tank.
Note: The gap between the Transition Cone and the still pipe must not be
larger than 4 mm anywhere along the lower end of the Transition Cone.
Table 10.1 shows the wide range of schedules and pipe inner
diameters that the Transition Cones can be mounted in.
The still pipe must be vertical within 0.3° (0.1 m over 20 m).
Main Pipe
Diameter
Pipe Schedule
From
Pipe Inner Diameter
To
From (mm)
To (mm)
6"
SCH 20 S
SCH 40 S
Ø 156.3
Ø 154.1
8"
SCH 20 S
SCH 80 S
Ø 206.3
Ø 193,7
10"
SCH 20 S
SCH 40 S
Ø 260.3
Ø 254.5
12"
SCH 20 S
SCH 40 S
Ø 311.1
Ø 304.9
Tables 10.1 shows the pipe schedules and the maximum area of the holes.
Note: If the Still Pipe Gauge has to be mounted on a pipe with a schedule
or an inner diameter that is not included in the table above, then please
contact Saab Tank Control or the Saab Tank Control representative.
10.3.2 Flange Requirements
The Still Pipe Gauge fits flanges of sizes 6", 8", 10" and 12". The
gauge has a meeting flange for sealing of the tank. The flange
must be horizontal within ±2°.
±2°
MAX
WAL
TANK
Figure 10.8. The flange must be horizontal within ±2°.
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Installation Manual
10.3.3 New Tanks
When constructing new tanks, an 8" still pipe or larger is recommended. This is especially relevant in tanks with sticky, viscous
products. Before manufacturing a new still pipe, we recommend
that you contact the Project Department at Saab Tank Control for
advice. See also drawing with recommendations for still pipe
dimensions, see list of drawings in chapter 13.
For highest performance, the total area of the slots or holes in the
still pipe must not exceed the values shown in table 10.2 below.
The area in the table is the total area of the holes over the entire
length of the pipe, regardless of its length. In some cases it is possible to allow a larger area of the holes in the still pipe, than the
area stated in table 10.2. When the limits are exceeded, please
contact Saab Tank Control for advice.
Pipe Dimension
Max Area of
Slots or Holes
6"
0.03 m
8"
0.12 m
10"
0.40 m
12"
1.00 m
Tables 10.2 shows the maximum area of the slots or holes.
10.3.3 Service Space
See installation drawing for requirements on the service space. It is
necessary to have this free space when installing the gauge, when
doing service on it and when hand dipping or taking samples. The
height of the free space requirement depends on which Transition
Cone that is used. The larger Transition Cones require higher free
space.
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Installation Manual
10.4 Requirements for the LPG/LNG Gauge, RTG 2960
The LPG/LNG Gauge fits to a 6" flange and requires a still pipe
for measurement.
Please refer to the mechanical installation drawing for more detailed information of the requirements on the installation of the
LPG/LNG Gauge.
10.4.1 Temperature and Pressure Measurement
A prerequisite for high accuracy level-measurement is that temperature and pressure measurements are made. This can be accomplished in some different ways.
•
An Independent DAU can interface both pressure sensors
and temperature sensors.
•
A Current Loop Card in the Transmitter Head to connect the
pressure sensor and a Slave Data Acquisition Unit for the
temperature measurement.
10.4.2 Still Pipe
A still pipe must be installed before the gauge is installed. The still
pipe is customer supplied and should be manufactured according
to the drawings specified in chapter 13.
Either a steel pipe with an inner diameter of 100 mm and 2-3 mm
wall thickness or a 4" SCH 10 stainless steel pipe can be used.
Specify the type of pipe in the Required System Information Form.
The still pipe must be vertical to within ±0.5°. The customer flange
must be horizontal within ±1°.
10.4.3 References in Still Pipe
The still pipe is made with a number of holes along the length of
it. Some of these holes are used to mount the Reference Pins and
the Reflector Plug (if included).
The Reflector Plug is used for calibration of the gauge. The Reference Pins provide verification of the measurement when the tank
is pressurized. The other holes provide pressure equalization so
that the level is the same on the inside as on the outside of the
pipe. These holes can be chosen to 20 mm or 3/4". All holes must
be placed along a line on one side of the pipe. The direction of the
line, along which the lines are located, must be marked clearly on
the tank flange and customer flange.
There are two systems for references in the still pipe:
One Reference Pin at the top of the still pipe and a Reflector
Plug at the bottom of the pipe.
Two or three reference pins installed at the top, the bottom
and the middle of the pipe. This system is used when it is not
possible to have an epoxy Reflector Plug in the tank.
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Installation Manual
10.4.4 System with Reference Pin and Reflector Plug
At the top of the pipe there is a reference pin and at the bottom
there is a reference plug made from epoxy resin.
Note: If the products that will be stored in the tank are not compatible
with epoxy resin, the system with two or three Reference Pins should be
used instead, see chapter 10.4.5.
See installation drawings for information on where to place the
references in the still pipe. Enclosed with reference pin and bottom
plug are instructions on how to install these.
10.4.5 System with Reference Pins Only
Saab Tank Control delivers three Reference Pins to each Radar
Tank Gauge and they have to be mounted in the still pipe before it
is lowered into the tank. For more information please refer to the
installation drawings, see List of Drawings in chapter 8.
Position the holes for the Reference Pins so that the top pin is
located at approximately 95% of the total tank height but at least
0.8 m below the flange of the still pipe. Place the second pin at
approximately 50% level.
Place the lowest pin at approximately 20 % of the tank height but
at least 0.8 m above the lower end of the pipe.
On tanks with tank heights of less than 7 m, only the top and
bottom reference pins are used.
10.4.6 Extension Pipe for Minimum Distance
The Radar Tank Gauge should be placed so that there is always
800 mm or more between the Closing and the maximum product
level. If the tank is filled completely, an extension pipe can be
mounted to raise the Radar Tank Gauge so that it measures correctly all the way up to the maximum level. See figure 10.9.
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Min 800
mm to
product
surface
Figure 10.9 shows an extension pipe.
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Installation Manual
11 Mechanical Installation of the Radar Tank Gauges
Please refer also to the mechanical installation drawings for more
information. A list of the drawings is presented in chapter 13.
11.1 Installation of Horn Antenna Gauge, RTG 2920
Note: When determining the dimensions for conduits (if used), make
note that the Horn Antenna Gauge may be inclined 4° towards the center
of the tank. See figure 11.7. Use flexible conduits close to the Radar Tank
Gauge.
Follow this step by step instruction when installing the Cone
Antenna Gauge, RTG 2920
1.
Spring
Sleeve
2.
Waveguide Unit
M6 stop
screw
3.
"i"
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
W12
W11
Transmitter
Head
4.
Cone and flange
assembly
Check that all parts and tools are
available before carrying them up to
the tank top.
Mount the Spring Sleeve into the
baser of the Transmitter Head. Turn
the Spring Sleeve so that it fits into
one of the notches.
Mount the Waveguide Unit into the
base of the Transmitter Head. On one
end of the Waveguide Unit there are
two screws with washers fitted.
Mount the Waveguide Unit with this
end first into the base of the Transmitter Head. Enter the stop screws
and tighten them.
Carefully enter the Horn and Flange
Assembly into the nozzle. Tighten
the flange onto the customer’s flange
using customer supplied screws and
nuts.
Check that the socket height is less
than 330 mm.
Customer's
gasket
Customer's
flange
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Installation Manual
5.
Mount the Transmitter Head onto
the flange. Fit and tighten the four
M10 screws with washers.
6.
Mount the Weather Protection Hood
and secure with locking pins.
Transmitter
Head
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
W11
Four screws
and washers
Mount Weather
Protection Hood
and secure with
locking pins
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
W11
Mounting
pins
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Installation Manual
11.2 Installation of the Parabolic Antenna Gauge, RTG 2930
Follow this step by step instruction when installing the Parabolic
Antenna Gauge.
1.
Check that all parts and tools are available before carrying
them up to the tank top.
Spring
Sleeve
Transmitter
Head
Four M10
nuts and
washers
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Four M10
stud screws
W11
2.
Mount the Spring Sleeve into the
baser of the Transmitter Head. Turn
the Spring Sleeve so that it fits into
one of the notches.
3.
Mount the Waveguide Unit into the
base of the Transmitter Head. On one
end of the Waveguide Unit there are
two screws with washers fitted.
Mount the Waveguide Unit with this
end first into the base of the Transmitter Head. Enter the stop screws
and tighten them.
On the Closing there are two guide
pins on one sided and only one on
the other. Fit the Transmitter Head to
the side of the Closing that has two
guide pins with four M10 nuts and
washers. These parts can be
preassembled at a more convenient
location than the tank top.
If the Inclination Device is used then
check that the gaskets are correctly
applied on the Angular Rings.
Mount the Angular Rings onto the
flange or manhole cover.
Check that the two O-rings are
placed in their separate grooves on
the top surface of the Antenna
Feeder. Mount the Antenna Feeder to
the Closing, entering the guide pin
into its corresponding hole. Fit the
four nuts and tighten.
M6 stop
screw
Waveguide Unit
Two guide pins
Closing
One guide pin
Gaskets
Welding neck
flange
(customer supply)
Inclination
Device
4.
Customer
manhole cover
Transmitter
Head
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
Closing
Two O-rings
Four M10
nuts
5.
Antenna
feeder
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Installation Manual
Transmitter
Head
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
6.
M16 or 3/4" screws
(customer supply)
Closing
Inclination
Device
M16 or 3/4" nuts
(customer supply)
Carefully mount the Transmitter
Head with the Closing and Antenna
Feeder onto the flange and direct the
Transmitter Head so that one of the
ridges which are cast into the Safety
Enclosure is pointed to the tank
center.
Fit eight M16 or 3/4" screws and
tighten them by hand. These screws
are customer supplied.
Direct ridges on
Transmitter
Head toward
tank center
within ±2°
Transmitter
Head
Tank center
Ridges
Tank
7.
Antenna
feeder
Parabolic
reflector
Open the manhole cover. Fit the
Parabolic Reflector onto the Antenna
Feeder. Fit and tighten the three
screws.
Three M6
screws
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Installation Manual
Replace the manhole cover. Adjust
the inclination of the Gauge, so that
the antenna axis points 1.5° to the
tank center, using the Inclination
Device. Tighten the eight screws for
the Closing.
Note: For bitumen tanks, the gauge
should be mounted with 0° inclination.
9.
Fit the Weather Protection Hood onto
the two pins of the Transmitter
Head.
Plumb line
Tank center
8.
Incline 1.5°
towards
tank center
Mount Weather
Protection Hood
and secure with
locking pins
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
46
W11
Mounting
pins
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US Version. Seventh edition, June 1995
Installation Manual
11.3 Installation of the Still Pipe Gauge, RTG 2940
Note: If there is no flange on the still pipe a clamp flange must be
mounted.
Follow this step by step instruction when installing the Still Pipe
Gauge.
1.
Check that all parts and tools are available before carrying
them up to the tank top.
2.
Enter the Cone into the still pipe to make sure it fits. Maximum gap between the Cone and the pipe is 4 mm.
O-Ring
3.
Mount the O-ring into the flange.
4.
Press the Flange onto the Cone. Use
manual force only. If there is much
resistance, try putting some grease
on the O-ring.
5.
Place the M16 screw with a washer
in the Stand. Fit the spherical washers onto the screw and secure these
washers by mounting the small Oring under the washers. This O-ring
can be left on when the Stand is
mounted onto the flange.
Mount the Stand onto the Cone and
tighten the four screws.
Flange
Flange
Cone
M16 screw and
washer
Stand
Spherical washers
O-Ring
6.
Four screws
Stand
Flange
M16-screw
with
spherical
washers
Cone
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Installation Manual
7.
Stand
8.
O-Ring
Flange
Cone
Place a customer supplied gasket on
the flange of the still pipe.
Mount the assembly into the still
pipe. Use only manual force. Too
much force can damage the Cone.
Mount customer supplied screws
and nuts and tighten. Make sure the
Cone is centered in the still pipe. Fit
the M16-nut and tighten.
Customer´s
gasket
Still pipe
M16 nut
and
washer
Spring
Sleeve
Waveguide
Unit
9.
Mount the Spring Sleeve into the
baser of the Transmitter Head. Turn
the Spring Sleeve so that it fits into
one of the notches.
10.
Slide the Waveguide Unit into the
Transmitter Head. It can only be
entered in one way.
11.
Mount the Transmitter Head onto
the Stand with its cable connections
pointing down. Be careful not to
drop the Waveguide Unit as it is not
in i fixed position. Check that the
guide pins on the Stand enter the
holes on the base of the Transmitter
Head properly. Fit and tighten the
M10 nuts.
The Waveguide Unit will not be in a
fixed position until the Transmitter
Head has been tightened to the
Stand.
Transmitter Head
Note:
Guide
pins
Four M10 nuts
and washers
Stand
Transmitter
Head
Cables
pointing
down
48
12.
Saab TankRadar L/2
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Installation Manual
Braided
ground
wire
Tighten by hand
13.
Fit the Waveguide Connection into
the Cone. It must be firmly pressed
down so that there is a well defined
snap as the lower end fits onto the
O-ring of the Cone. Tighten the nut
onto the thread of the Waveguide
Unit by hand.
Mount the ground wire onto the
Stand.
14.
Secure the Waveguide Unit by tightening two stop screws into the base
of the Transmitter Head. Tighten the
top screw first. Fit the two mounting
pins onto the Stand and mount the
Weather Protection Hood onto the
four pins.
Waveguide
Connection
Self tapping
screw
Note:
Press until a
well defined
snap.
Mount Weather
Protection Hood
and secure with
locking pins
2 x M6 Stop
screws
Note: Tighten top
screw first
Fit the two
mounting pins
for the Weather
Protection Hood
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Installation Manual
11.4 Installation of the LPG/LNG Gauge, RTG 2960
Follow this step by step instruction when installing the LPG/LNG
Gauge.
Note: There must be a clear mark on the customer flange to show the
direction of the reference pins in the still pipe. Carefully check that the
Closing is mounted in the appropriate angle relative to that mark.
See also the installation drawings. See chapter 13 for list of drawings.
The Lower Flange, the ball valve and the Closing are
preassembled and delivered as one unit.
1.
Check that all parts and tools are available before carrying
them to the tank top.
2.
Install the still pipe according to mechanical installation
drawing 9150057-986 or 9150057-987.
3.
Enter the Cone into the still pipe to make sure it fits. Maximum gap between the Cone and the pipe is 2 mm.
Do not remove
this protective cap
4.
Mount the Pipe Cone onto the Closing using four M6 Allen head screws.
Be careful when handling the Closing with the Pipe Cone mounted
onto it as it is very important that the
Pipe Cone is not deformed.
Do not remove the yellow protective
cap.
5.
Mount the Spring Sleeve into the
baser of the Transmitter Head. Turn
the Spring Sleeve so that it fits into
one of the notches.
Pressure
transducer
Lower
Flange
Ball
Valve
Closing
Four M6
screws
Pipe
Cone
Spring
Sleeve
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Saab TankRadar L/2
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Installation Manual
Waveguide Unit
6.
Put the Transmitter Head upside
down on a flat surface and fit the
Waveguide Unit into the base.
7.
Fit the Housing to the Transmitter
Head. Carefully check that the Guide
Pins enter their respective holes and
turn the lever of the Waveguide Unit
so that it fits into the corresponding
recess in the Housing. Tighten the
Housing to the base of the Transmitter Head using four M10 screws and
washers.
8.
Place customer supplied gasket on
customer's flange. Carefully fit the
Pipe Cone into the still pipe and
tighten the Closing onto the 6" flange
using customer supplied screws and
nuts. Direct the Closing so that the
marking hole aligns with the notch
or mark on the customer flange.
The tank is now sealed and can, as
far as Saab Tank Control equipment
is concerned, be pressurized.
Transmitter Head
Housing
Guide pins
Waveguide
Unit
4 M10 screws
and washers
Align!
Notch indicating
the direction of
the Reference
Pins
9.
Customer
Flange
Align!
Reference
Pin
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Installation Manual
4 M10 screws
and washers
10.
Remove the yellow protection cap,
but do not remove the rubber cone.
Fit the Transmitter Head and the
Housing onto the Lower Flange.
Carefully check that the Guide Pins
enter their respective holes. Tighten
using four M10 screws and washers.
11.
Fit the Weather Protection Hood onto
the mounting pins of the Transmitter
Head.
12
FO
IN R
SA TR
ON FE INSI
LY CI CA
RC LL
UI Y
TS
"i"
11
Guide pins
Do not
remove
this cone!
Lower
Flange
Mount Weather
Protection Hood
and secure with
locking pins
W12
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
52
W11
Mounting
pins
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Installation Manual
12 Electrical Installation
Warning! Isolate and terminate ends of unused wires. The intrinsic
safety may be jeopardized if any cable ends are hanging loose. Use certified battery operated instruments only. Use Saab Tank Control original
spare parts only.
Note: For all electrical installation, please see the instructions in the
electrical installation drawings. See list of drawings in chapter 13.
12.1 Cabling for Power Supply
The cables used for the power supply connection must be suitable
for the supply voltage in question and also approved for use in
hazardous area where it is applicable. In the USA, for example,
explosion proof conduits must be used in the vicinity of the tank.
The wire areas must be selected not to cause too much voltage
drop on the way to the RTGs, the DAUs, the FCUs, etc.
Each Radar Tank Gauge and Field Communication Unit have a
switch for voltage selection that can be set to either 115 VAC or 230
VAC. Check that the switch is set in the right position before
power is connected. See chapter 3.1.3 and 6.3.
The selection of 115 or 230 VAC power supply for the Independent
Data Acquisition Unit is made by connecting a strap on one of the
printed circuit boards in the flameproof enclosure. See chapter
4.7.1. Maximum power consumption is 10 W.
The Slave Data Acquisition Unit receives its power via the local
line from the associated Radar Tank Gauge.
The power supply connection to the Radar Tank Gauge should be
made with wires according to table 12.1 below. The table shows
the voltage drop at various cable lengths and wire areas at the
maximum power consumption of 80 W. The figures shaded in
grey indicate combinations of lengths and areas that might result
in too high voltage drops.
115 V
Cable Length
0.75 mm
(AWG 18 or
similar)
230 V
1.5 mm
(AWG 16 or
similar)
0.75 mm
(AWG 18 or
similar)
1.5 mm
(AWG 16 or
similar)
100 m
330 ft.
3.1 V
1.6 V
1.6 V
0.8 V
200 m
660 ft.
6.3 V
3.2 V
3.2 V
1.6 V
500 m
1640 ft.
16 V
8V
8V
4V
Table 12.1. Grey areas show too high voltage drop.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
53
Installation Manual
12.2 Cabling for TRL/2 Bus
The TRL/2 bus requires a twisted and shielded pair with an area
of min 0.50 mm2 (AWG 20 or similar). The maximum length of the
TRL/2 bus is 4 km. The TRL/2 Field Bus can normally use existing cables in the tank area.
Note: Wherever two TRL/2 Buses run alongside each other, sharing the
same cable or conduit tube, individual shielding is mandatory in order to
avoid crosstalk.
12.3 Grounding
According to national code of practice the Transmitter Head or
Data Acquisition Unit can be grounded by connecting an exterior
4 mm2 wire to a potential equalization network, or, if no such
exists, to the tank structure. A grounding lug is available on the
enclosure for this purpose.
Note: When the enclosure is connected to a potential equalizing network
or to the tank structure, the protective ground with the power supply
must not be connected.
If the enclosure is not externally grounded, the protective ground with
the power supply should be connected.
12.4 Electrical Installation of the Radar Tank Gauge, RTG
12.4.1 The Non-Intrinsically Safe Connection (W11)
The power connection is made with two wires. The TRL/2 Field
Bus connection is made with a single pair of shielded twisted
wires.
A Junction Box is required for the non-intrinsically safe connection
of the power supply and the TRL/2 Field Bus. The junction box
can either be customer supplied or supplied by Saab Tank Control
as an option, see chapter 7. The three wires in the cable output that
are not used must be properly insulated and terminated in the
junction box.
12.4.2 The Intrinsically Safe Connection (W12)
See chapter 3.1.2 for information on number of cables in lead seal.
If the distance between the Transmitter Head and the Slave Data
Acquisition Unit is longer than 2.0 m, a junction box must be used
to connect an extension cable. This extension cable must not be
longer than 50 m. For safety reasons the ends of the unused wires
must be properly insulated and terminated. The junction box can
either be customer supplied or supplied by Saab Tank Control as
an option, see chapter 7.
A flexible protective hose for the wires is delivered with the Barrier Unit or the Current Loop Card, or with the Transmitter Head
if the units have been factory installed. For reasons of electromag-
54
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Installation Manual
netic interference and compatibility it is very important that a
continuous metal shield is covering the wires between the Transmitter Head and the Slave Data Acquisition Unit. If an extension
cable is used, both the cable and the junction box must provide
good shielding.
12.5 Electrical Installation of the Data Acquisition Unit, DAU
Instructions for the connection of the Data Acquisition Unit is
given on the inside of its cover.
12.5.1 Electrical Installation of the Slave DAU, DAU 2100
The connection to the Radar Tank Gauge is done according to the
instructions in chapter 12.4.2 above.
Either Pt 100 (spot element) or Cu 100 (averaging sensor) temperature sensors can be used. If the sensors are connected with common return wires then jumpers must be connected in the Data
Acquisition Unit terminals.
Intrinsically safe connection of the temperature sensors, the RTDs,
is made with n + 2 wires for an n-element spot or averaging sensor. There are spot elements with three wires for each element.
12.5.2 Electrical Installation of the Independent DAU, 2130
The connection of the power supply and the TRL/2 Field Bus is
made through the lead seal W21.
A Junction Box is required for the non-intrinsically safe connection
of the power supply, the TRL/2 Field Bus and the relay outputs.
The junction box can either be customer supplied or supplied by
Saab Tank Control as an option, see chapter 7.
Temperature sensors are connected in the same way as for the
Slave Data Acquisition Unit which is described above in chapter
12.5.1.
Intrinsically safe 4-20 mA transducers can be connected to the
current inputs with two wires for each sensor. Up to four transducers can be connected to each Data Acquisition Unit but the
input multiplexer can only bias one at a time. These connections
are normally used for pressure sensors or interface probes.
Eight intrinsically safe digital or frequency inputs are provided.
Each input requires two wires.
Four non-intrinsically safe relay outputs are available with two
wires per relay. This option has to be specified in the Required
System Information Form. The relays are connected through the
lead seal W22.
Saab TankRadar L/2
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55
Installation Manual
12.6 Electrical Installation of the Field Bus Modem, FBM 2170
The Field Bus Modem is delivered, as standard, with a 3 m long
cable for the RS-232C connection to the PC. The TRL/2 bus connection is made with a twisted pair of wires. The Field Bus Modem must not be used in a hazardous zone as it is not explosion
protected. The Field Bus Modem is powered from an AC/DC
converter (6-15 V, 10 mA) supplied by Saab Tank Control. In some
rare cases the Field Bus Modem can be powered from the RS-232C
port of the PC.
12.7 Electrical Installation of the Field Communication Unit,
FCU 2160
The FCU can be connected to the PC either directly via RS-232C or
via a TRL/2 Group Bus.
For the connection of the TRL/2 Bus, see chapter 12.2.
The RS-232C connection can be made with 3 wires from the PC to
the Field Communication Unit. The area must be at least 0.25 mm2
(AWG 24 or similar). The maximum length of the RS-232C connection is 30 m.
56
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Installation Manual
13 List of Drawings
13.1 Mechanical Installation
9150041-958
9150057-951
9150057-924
9240003-987
9150057-982
9150066-961
9150057-957
9150057-958
9150057-959
9240002-912
9240002-913
9240002-914
9240003-906
9240003-489
Reference Pin Installation, RTG 2960 LPG/LNG Gauge
Instruction Still Pipe Installation, RTG 2960 (LPG/LNG Gauge)
Mechanical Installation, RTG 2940 Still Pipe Gauge
Recommended still pipes for Saab TankRadar
Mechanical Installation, RTG 2930 Parabolic Antenna Gauge
Mechanical Installation, RTG 2920 Horn Antenna Gauge
Mechanical installation drawing, RTG 2960 (LPG/LNG Gauge)
Mechanical installation drawing, Still Pipe Alt. A, RTG 2960
Mechanical installation drawing, Still Pipe Alt. B, RTG 2960
Mechanical Installation Independent DAU, DAU 2130
Mechanical Installation Slave DAU, DAU 2100
Mechanical Installation FCU 2160
Mechanical Installation Temperature Bulb
Mechanical Installation Temperature Connection Box
13.2 Electrical Installation
9240002-902
9240002-903
9240002-904
9240002-905
9240002-906
9240002-907
9240002-908
9240002-909
9240002-910
9240002-911
9240002-923
9240002-924
9240002-925
9240002-930
9240002-936
Electrical Installation FBM - FCU
Electrical Installation FBM - Group Bus
Electrical Installation FCU - FBM
Electrical Installation FCU - RS-232
Electrical Installation FCU - Modem
Electrical Installation Independent DAU - Cu 100
Electrical Installation Independent DAU - Pt 100
Electrical Installation Slave DAU - Cu 100
Electrical Installation Slave DAU - Pt 100
Electrical Installation Radar Tank Gauge
Electrical Installation RTG + Current Loops + DAU
Electrical Installation RTG + Current Loops + DAU
Electrical Installation RTG + Current Loops + Display
Electrical Installation RTG + Current Loops + DAU
Electrical Installation FCU RS-485 - Host Computer
Saab TankRadar L/2
US Version. Seventh edition, June 1995
57
Installation Manual
14 Description of the Required System Information
In order to be able to correctly configure and assemble the parts of
the system the Required Information Form must be completed.
It is also necessary to provide drawings of the tank farm layout
with proposed location of Radar Tank Gauges, Data Acquisition
Units, Field Communication Units, Field Bus Modems, Operator’s
Interface etc.
The Required System Information Form and the drawings must be
filled in and returned to Saab Tank Control or to Saab Tank Control Representative 1-3 months before delivery.
When the system is started up all the database constants have to
be programmed into the system. For this purpose the Data Sheets
in the Service Manual should be completed. The completed Data
Sheets are a great aid when setting up the system using either the
Operator’s Interface (OPI) or the Configuration Software (COS).
14.1 System Configuration
Enter how many Field Communication Units, Radar Tank Gauges,
Slave Data Acquisition Units and Independent Data Acquisition
Units that will be connected to the system.
Enter power supply as either 115 V or 230 V.
14.2 System Master
The Operator’s Interface software needs at least a 486/33 MHz
computer. There is a minimum requirement of at least 8 MByte
RAM memory for the OPI Software and 12 MByte RAM for the
OPI/2 Software. The operating system must be OS/2 of version
1.2 Standard Version or higher. It is not a requirement, but it is
very convenient to operate the program with a mouse or some
other pointing device.
14.3 Plant Host Computer System (Plant DCS)
The type and make of the host computer must be entered in the
table. The type of communication and the communication protocol
must be specified. The host computer can be connected directly to
the Field Communication Units or it can be connected to a PC with
the Operator’s Interface. See chapter 8.
14.1.3 Tank Data
The tank type, the tank content, its temperature range and its
maximum pressure has to be filled in. The Tank Reference Height
is the reference height from the Tank Reference Point down to the
Datum Level or the tank bottom, whichever that is used as the
zero level. The Tank Reference Point should be the ullage plug
which will be used for hand dipping. The Tank Connection Type
has to be specified as either Horn Antenna, Still Pipe, Parabola or
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Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
LPG/LNG. Enter if an Inclination Device will be used. If there is a
still pipe then enter the inner diameter and the type of pipe that
will be used.
Specify to which Field Communication Unit that each tank will be
connected. If there will be a Data Acquisition Unit connected at the
tank then specify if it will be a Slave or an Independent DAU and
if it will be equipped with a Local Readout LCD Display.
The number of digital outputs have to specified and if they are to
be normally ON or normally OFF.
The number of temperature sensors and their type (Cu 100 or Pt
100) has to be entered. Other inputs can be current inputs, frequency inputs or digital inputs. Specify what kind of signal that is
read at the input. Please note the heights of the Resistance Temperature Detectors in the tables on pages 6-8 in the appendix. See
also figure 14.1 below.
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
T14
T13
T12
T3
T2
T1
Figure 14.1.
Installation of
temperature
sensors.
Saab TankRadar L/2
US Version. Seventh edition, June 1995
DATUM
LEVEL
59
Installation Manual
This page is intentionally left blank.
60
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Required System Information Form
Required System Information Form
All constants are defined in the Installation Manual, Chapter 14.
Please state all distances in metric units.
Installation site: ___________________________________________
Total number of tanks: ______________________________________
Name of person who
completed this form: _______________________________________
In order to be able to correctly configure and assemble the parts of
the system the Required System Information Form must be filled
in.
It is also necessary to provide drawings of the tank farm layout
with proposed location of Radar Tank Gauges, Data Acquisition
Units, Field Communication Units, Field Bus Modems, Operator’s
Interface etc.
Note: See chapter 9 in the Installation Manual when completing the
form.
Copyright © June 1995.
Saab Marine Electronics AB
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Appendix-1
Required System Information Form
Power Supply
System Information:
115 V
230 V
Number of FCU's:
Number of RTG's:
Number of Slave DAU's:
Number of Independent DAU's:
PC for OPI or OPI/2 Software:
Type and make (manufacturer) of PC:
Size of RAM ( OPI: Min 8 MByte, OPI/2: Min 12 MByte):
OPI Network
Number of servers in network
Number of clients in network
If existing network: Type of network
operating system
Plant DCS (Plant Host Computer):
Type and make (manufacturer) of computer:
Type of communication:
Communication protocol:
Connected to FCU's or to
Operator's Interface:
Connection to TRL-System:
Processor Unit Serial Number:
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Appendix-2
Required System Information Form
Tank Data
Tank
Name
Tank
Product
Temp.
Min
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Max
Over
Pressure
Tank
Height
Approx.
RTG Type
(2920, -30,
-40 or -60)
Max
Appendix-3
Required System Information Form
Tank Data (Cont.)
Tank
Name
If RTG 2920
or RTG 2930:
Dist. to
Tank Wall
(mm)
Socket
Height
(mm)
If RTG 2940:
Pipe
Inner
Diam.
(mm)
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Size of
Slots/
Holes
(Ø or
WxH
in mm)
Number
of Slots/
Holes
per meter
If RTG 2960:
Flange
Pressure
Rating
Pipe Inner
Diameter
(Mark
with X)
DIN
100
4"
SCH
10
Appendix-4
Required System Information Form
Tank Data (Cont.)
Data Acquisition Unit, DAU
Tank
Name
Conn. to
FCU
name or
number:
Independent
or Slave
DAU:
Number Type of Other
of
Temp. Inputs:
Temp. Sensors:
Sensors:
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Option
Option
Local
Digital
Outputs Readout
Normally Display
(Yes/No)
ON or
OFF:
Appendix-5
Required System Information Form
Tank Data
Specific requirements to fulfill FCC rules (Only for US markets)
Tank Name
Metallic tank
(Yes/No)
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Any permanent
openings
(Yes/No)
Any occasional
openings on tank
(Yes/No)
Appendix-6
Required System Information Form
Temperature Sensor Installation
W12
W11
FOR
INTRINSICALLY
SAFE CIRCUITS
ONLY
"i"
T14
T13
T12
T3
T2
T1
DATUM
LEVEL
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Appendix-7
Required System Information Form
Installation of Temperature Sensors (Cont.)
Tank
Name
Resistance Temperature Detectors
T1
Saab TankRadar L/2
US Version. Seventh edition, June 1995
T2
T3
T4
T5
T6
T7
Appendix-8
Required System Information Form
Installation of Temperature Sensors (Cont.)
Tank
Name
Resistance Temperature Detectors
T8
T9
T10
Saab TankRadar L/2
US Version. Seventh edition, June 1995
T11
T12
T13
T14
Appendix-9
Installation Manual
Index
Analog inputs ...................................... 55, 59
Angular Rings
Parabolic Antenna Gauge ............... 44
Asphalt .......................................... 16, 17, 34
Barrier Unit ................................................. 54
Barrier Unit Card ....................................... 14
Barrier Unit Kit ........................................... 14
Bitumen ......................................... 16, 17, 34
BU ................................................................. 14
Cable length ................................................ 54
Cable Outputs ............................................ 13
Cable Requirements
Power Supply .................................... 53
TRL/2 Bus ......................................... 54
CLC .............................................................. 15
Closing
LPG/LNG Gauge ............................. 50
Parabolic Antenna Gauge ............... 44
Commissioning Check List ...................... 31
Communication ......................................... 58
Communication Ports ............................... 25
Conduits ...................................................... 42
Configuration Software .............................. 9
COS ................................................................ 9
Cu100 ........................................................... 59
Current Loop Card ............................. 15, 54
Data Acquisition Unit ................................. 9
Description ........................................ 20
Database ...................................................... 58
Datum Level ............................................... 58
DAU 2100 ............................................. 22, 55
DAU 2130 .................................................... 24
DCS ....................................................... 29, 58
Digital inputs .............................................. 59
Digital or frequency inputs ...................... 55
DPS board ................................................... 23
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Electrical Installation ................................. 53
Data Acquisition Unit ...................... 55
Field Bus Modem ............................. 56
Field Communication Unit ............. 56
Independent DAU ............................ 55
List of Drawings ............................... 57
Radar Tank Gauge ............................ 54
Slave DAU ......................................... 55
Electronic Unit ............................................ 13
Explosion proof ................................... 10, 11
Explosion protection ................................. 10
Extension Pipe
LPG/LNG Gauge ............................. 41
FBM 2170 ......................................... 9, 24, 56
FCM interface boards ................................ 25
FCU 2160 .................................. 9, 25, 27, 56
FCU Enclosure ............................................ 26
Field Bus ...................................................... 25
Field Bus Modem .................................. 9, 24
Description ........................................ 24
Field Communication Unit .................. 9, 25
Description ........................................ 25
Flame proof ................................................. 10
Flange
Parabolic Antenna Gauge ............... 36
Flange Adapter ........................................... 47
Flange Requirements ................................. 38
Parabolic Antenna Gauge ............... 36
Flexible conduits ........................................ 42
Free Space Requirement
Parabolic Antenna Gauge ........ 32, 35
Frequency inputs ....................................... 59
Ground ........................................................ 54
Grounding................................................... 54
Group Bus ................................................... 25
Index 1
Installation Manual
Hazardous area .......................................... 10
Horn Antenna Gauge
Description ........................................ 16
Installation requirements ................ 32
Host computer..................................... 30, 58
Housing ....................................................... 51
Local Readout Display .............................. 21
Local Readout Display (LCD) .................... 9
Low-loss radar mode ................................ 18
LPG/LNG Gauge
Description ........................................ 19
Installation requirements ................ 40
Mechanical Installation.................... 50
Inclination
Parabolic Antenna Gauge ........ 34, 46
Inclination Device ...................................... 34
Parabolic Antenna Gauge ........ 34, 44
Independent DAU ................................ 9, 20
Description ........................................ 23
Inner diameters .......................................... 38
Installation Data
Both DAUs ........................................ 22
Field Bus Modem ............................. 24
Field Communication Unit ............. 27
Horn Antenna Gauge....................... 16
Independent DAU ............................ 24
LPG/LNG Gauge ............................. 19
Parabolic Antenna Gauge ............... 17
Slave DAU ......................................... 22
Still Pipe Gauge ................................ 18
Transmitter Head.............................. 15
Installation requirements
Cone Antenna Gauge ....................... 31
LPG/LNG Gauge ............................. 40
Parabolic Antenna Gauge ............... 34
Still Pipe Gauge ................................ 38
Installation Schedule ................................. 30
Intrinsic safety ............................................ 10
Inventory Data ........................................... 30
Mechanical Installation
Horn Antenna Gauge....................... 42
List of Drawings ............................... 57
LPG/LNG Gauge ............................. 50
Parabolic Antenna Gauge ............... 44
Still Pipe Gauge ................................ 47
Mechanical installation ............................. 42
Metrological Seal ........................................ 15
Mouse .......................................................... 58
JB 12 ............................................................. 28
JB 16 ............................................................. 29
JB 36 ............................................................. 29
JB 8 ............................................................... 28
Junction Box ......................................... 54, 55
Junction Boxes ............................................ 28
LCD-display ................................................. 9
List of Drawings ......................................... 57
Index 2
New Tanks
Parabolic Antenna Gauge ............... 36
Still Pipe Gauge ................................ 39
Obstacles ..................................................... 32
Operating system ....................................... 58
Operator’s Interface ........................ 8, 9, 58
OPI ................................................................. 9
OS/2............................................................. 58
Parabolic Antenna Gauge
Description ........................................ 17
Installation requirements ................ 34
Mechanical Installation.................... 44
Parabolic Reflector ..................................... 45
Pipe Cone ............................................. 50, 51
Pipe inner diameter ................................... 38
Pipe schedule .............................................. 38
Plant Host Computer ........................... 8, 29
Plant Host Computer System................... 58
Power Supply
Field Connection Unit...................... 26
Independent DAU ............................ 23
Radar Tank Gauge ............................ 14
Power supply ............................................. 53
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
Pressure Measurement
LPG/LNG Gauge ............................. 40
Pressure sealing
LPG/LNG Gauge ............................. 19
Protocol ....................................................... 58
Pt100 ............................................................ 59
Radar beam
Cone Antenna Gauge ....................... 32
Parabolic Antenna Gauge ........ 35, 37
Radar Tank Gauge ....................................... 9
RAM requiremnt ........................................ 58
Reference height ......................................... 58
Reference Pins ....................... 19, 40, 41, 50
Reference Plug ............................................ 19
Reference resistance ................................... 21
References
LPG/LNG Gauge ............................. 40
Reflector Plug ............................................. 40
Relay ............................................................ 23
Relay outputs ............................................. 55
Relays........................................................... 23
Required System Information .................. 58
Required System Information Form ....... 31
Resistance Temperature Detectors .......... 59
RS-232C ....................................................... 56
RS-232C Group Bus ................................... 25
RTDs ............................................................ 20
RTG ................................................................ 9
RTG 2920 .............................................. 16, 42
RTG 2930 .............................................. 17, 44
RTG 2940 .............................................. 18, 47
RTG 2960 .............................................. 19, 50
Safety ........................................................... 10
Schedule ...................................................... 38
Sealing Strips
Parabolic Antenna Gauge ............... 44
Shielding ..................................................... 55
Slave Data Acquisition Unit
Description ........................................ 22
Slave DAU .................................................. 20
Socket Requirements
Horn Antenna Gauge....................... 33
Parabolic Antenna Gauge ............... 37
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Still pipe ............................................... 40, 51
Area of the slots ................................ 39
LPG/LNG Gauge ............................. 50
Still Pipe Gauge .......................................... 18
Description ........................................ 18
Installation requirements ................ 38
Mechanical Installation.................... 47
Still Pipe Requirements ............................. 38
Supply voltage switch
Data Acquisition Unit ...................... 23
Field Communication Unit ............. 26
Radar Tank Gauge ............................ 14
System Configuration ............................... 58
System Master ............................................ 58
Tank Data .................................................... 58
Tank Reference Height .............................. 58
Tank Reference Point ................................. 58
Temperature Measurement
LPG/LNG Gauge ............................. 40
Temperature measurement................ 20, 21
Temperature Range ................................... 21
Temperature sensors.................... 20, 55, 59
Transition Cone .......................................... 38
Transmitter Head ....................................... 12
Voltage drop ............................................... 53
Voltage selection ........................................ 53
Voltage switch ............................................ 53
W11 .............................................................. 54
W12 .............................................................. 54
Waveguide Connection ............................. 49
Waveguide Unit
LPG/LNG Gauge ............................. 51
Parabolic Antenna Gauge ............... 44
Still Pipe Gauge ................................ 48
Welding neck flange .................................. 36
Write Inhibit/Enable Switch
DAUs .................................................. 21
Field Connection Unit...................... 26
Index 3
Installation Manual
Notes:
Index 4
Saab TankRadar L/2
US Version. Seventh edition, June 1995

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