Varec 4532 User Manual
4532 Average Temperature Sensor and
Converter
Installation and
Operations Manual
For software version V1.45
IOM019NVAE0208
www.varec.com
5834 Peachtree Corners East, Norcross (Atlanta), GA 30092 USA
Tel: +1 (770) 447-9202 Fax: +1 (770) 662-8939
Varec, Inc.
4532
Copyright
All rights reserved. Printed in the United States of America. Except as permitted under
the United States Copyright Act of 1976, no part of this publication may be reproduced,
stored in a retrieval system or transmitted in any form or by any means- electronic,
mechanical, photocopying, recording or otherwise- without the prior written permission
of the Publisher:
Varec, Inc.
5834 Peachtree Corners East
Norcross (Atlanta) GA 30096
USA
Trademarks acknowledged
Varec, Inc. recognizes all other trademarks. Trademarks of other products mentioned in
this document are held by the companies producing them.
Varec® is a registered trademark of Varec, Inc., a wholly-owned subsidiary of
Science Applications International Corporation
Varec, Inc. 1
Average Temperature/Water Bottom Sensor and Converter
Disclaimer of Warranties
The contract between the Seller and the Buyer states the entire obligation of the Seller.
The contents of this document shall not become part of or modify any prior or existing
agreement, commitment or relationship between the Seller and Buyer. There are no
express or implied warranties set out in this document. The only warranties that apply
are those in the existing contract between the Seller and Buyer.
Varec, Inc. products have not been tested by Varec, Inc. under all possible operational
conditions, and Varec, Inc. may not have all the data relative to your application. The
information in this document is not all inclusive and does not and cannot take into
account all unique situations. Consequently, the user should review this product
literature in view of his/her application. If you have any further questions, please contact
Varec, Inc. for assistance.
Limitations of Seller's Liability
In the event that a court holds that this document created some new warranties, Seller's
liability shall be limited to repair or replacement under the standard warranty clause. In
no case shall the Seller's liability exceed that stated as Limitations of Remedy in the
contract between the Seller and Buyer.
Terms of Use
The information provided in this document is provided “as is” without warranty of any
kind. Varec, Inc. disclaim all warranties, either express or implied, including the
warranties of merchantability and fitness for a particular purpose. In no event shall
Varec, Inc. or its suppliers be liable for any damages whatsoever including direct,
indirect, incidental, consequential, loss of business profits or special damages, even if
Varec, Inc. or its suppliers have been advised of the possibility of such damages.
Use of parts that are not manufactured or supplied by Varec, Inc. voids any Varec, Inc.
warranty and relieves Varec, Inc. of any obligation to service the product under warranty.
Varec, Inc. recommends the use of only Varec, Inc. manufactured or supplied parts to
maintain or service Varec, Inc. products.
Use of parts that are not manufactured or supplied by Varec, Inc. invalidates the agency
approval for this product.
2 Installation and Operations Manual
4532
Safety Precaution Definitions
Caution! Damage to equipment may result if this precaution is disregarded.
Warning! Direct injury to personnel or damage to equipment which can cause injury to
personnel may result if this precaution is not followed.
Safety Precautions
Read and understand this instruction manual before installing, operating or performing
maintenance on the Varec 4532 Average Temperature Sensor and Converter. Follow all
precautions and warning noted herein when installing, operating or performing
maintenance on this equipment.
Varec, Inc. 3
Average Temperature/Water Bottom Sensor and Converter
4 Installation and Operations Manual
4532 Contents
Contents
1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Installation and operation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Software history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.4 System functional diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Installation, commissioning and operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Product Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2.1 Power source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2.2 Use in hazardous areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2.3 External connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3.1 Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3.3 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3.4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.6 Notes on safety conventions and symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Device designation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1.1 Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 CE marks, declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.3 Flexible tube. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 Special conditions for safe use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Mounting instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Mounting on a fixed roof tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2.1 Top anchor method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2.2 Thermo well method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Varec, Inc. 1
Contents Average Temperature/Water Bottom Sensor and Converter
5.2.3 Anchor weight method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Mounting on a floating roof tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3.1 Top anchor method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3.2 Thermo well method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3.3 Guide ring and anchor weight method . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 Terminal Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1.1 4532 ATC terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1.2 6000 Series Servo Tank Gauge terminal . . . . . . . . . . . . . . . . . . . . . . . . 24
6.1.3 4590 TSM i.s. terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 Local HART connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1.1 As a Varec tank gauging instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1.2 As a standalone generic HART instrument . . . . . . . . . . . . . . . . . . . . . . . 27
7.2 Device set up: 4590 TSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.1 HART scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.2 The 4532 ATC specific parameter set up on the 4590 TSM . . . . . . . . . . . 28
7.3 Device set up: 6000 Series Servo Tank Gauge . . . . . . . . . . . . . . . . . . . . . 28
7.3.1 Preparation of 6000 Series Servo Tank Gauge . . . . . . . . . . . . . . . . . . . . 28
7.3.2 4532 ATC configuration on 6000 Series Servo Tank Gauge . . . . . . . . . . . 28
8 Operation and Description of Instrument Function . . . . . . . 31
8.0.1 HART Device designation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.0.2 Device Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1 Temperature measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1.1 Primary values: VH00 ~ VH09. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1.2 Element Temperature 1: VH10 ~ VH15 . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1.3 Element Temperature 2: VH20 ~ VH29 . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1.4 Element Position 1: VH30 ~ VH35
(VH36~VH39 is used only in 4539 ATC)
8.1.5 Element Position 2: VH40 ~ VH45 are not available in 4532 ATC . . . . . . . 35
8.1.6 WB primary and Advanced temp: VH50 ~ VH59 . . . . . . . . . . . . . . . . . . . 37
8.1.7 WB Adjustment and Operation Power: VH60 ~ VH69 . . . . . . . . . . . . . . . 38
8.1.8 Temperature Adjustment: VH70 ~ VH79. . . . . . . . . . . . . . . . . . . . . . . . . 38
8.1.9 Device setting 2: VH90~VH99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
35
9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.1 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.2 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.3 Repairs to Ex-approved devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.4 Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2 Installation and Operations Manual
4532 Contents
10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
10.1 System error messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
10.2 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
11 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
11.1 Anchor weight (Tall profile) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
11.2 Anchor weight (Low profile) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
11.3 Wire hook, Top anchor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
12 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
A Order Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
B Declaration of Contamination Form . . . . . . . . . . . . . . . . . . . . . . . 55
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Varec, Inc. 3
Contents Average Temperature/Water Bottom Sensor and Converter
4 Installation and Operations Manual
4532 Introduction
1 Introduction
1.1 Introduction
The 4532 Average Temperature Sensor and Converter (ATC) is a multi-element (Pt100)
resistance device designed to measure the average product temperature in bulk liquid
storage tanks. The measured value is converted into a HART® compatible output for use
in temperature compensated volumetric calculations. The 4532 ATC contains up to 6
temperature elements, spaced at 2 or 3 meter intervals along the length of the probe.
Power and local HART communications are provided over a 2-wire, intrinsically safe (i.s.)
connection from compatible instruments, such as the Varec 6000 Series Servo Tank
Gauge (STG), 7500 Series Radar Tank Gauges (RTG) and the 4590 Tank Side Monitor
(TSM).
1.2 Installation and operation ov erview
Step 1. Installing on tank top
• The actual installation may require an installer to work in a hazardous area. Safety
must be taken into account in order to avoid any harmful conditions.
• The installation method depends on the type of 4532 ATC. Refer to
Chapter 4, Installation.
Step 2. Wiring to the host instruments (4590 TSM)
• Wiring material and conditions must be in accordance with intrinsically safe
standards.
• One end (normally on the host instrument side) of the shield twisted pair of cables
must be grounded at the terminal connection.
• Refer to Chapter 4, Installation.
Step 3. 4532 ATC initial setup
• Set up device settings for the 4532 ATC and the local HART setting to the host
instrument.
Step 4. Data flow from the 4532 ATC to the host instruments
• Individual element temperature data: Individual row element temperature can be
accessed regardless of liquid level information on the 4532 ATC's data matrix.
Average temperature data: The host instrument sends liquid level data on the HART line
to the 4532 ATC. The 4532 ATC calculates both Gas / Liquid phase average temperature
based on this given liquid level.
1.3 Software history
Software version /
Date
V1.45/04.2006 Original software
Software changes Documentation
changes
Varec, Inc. 1
Introduction Average Temperature/Water Bottom Sensor and Converter
Pressure
Power AC
FuelsManager
Software
8130 RTU
or
8300 TGI
+24V
+5V
+15V
-15V
CPU
COMM
I/O
ERROR
Level
Temperature
To F T ool FieldT ool
Package
Commubox
FXA191/195
HAR T
2-wire
2-wire Power
(DC, Ex i)
Ex i
Ex i
Ex d
4590 TSM
Level
Interface
Density
Bottom
Temperature
HAR T
2-wire
Power AC/DC
HAR T
2-wire
1.4 System functional diagram
Figure 1-1: Connection with 7500 Series Radar Tank Gauge and 6000 Series Servo Tank
Gauge
2 Installation and Operations Manual
4532 Safety instructions
2 Safety instructions
2.1 Installation, commissioning and operation
• Mounting, electrical installation, start-up and maintenance of the instrument may
only be carried out by trained personnel authorized by the operator of the facility.
• Personnel must absolutely and without fail read and understand this manual before
carrying out its instructions.
• The instrument may only be operated by personnel who are authorized and trained
by the operator of the facility. All instructions in this manual are to be observed
without fail.
• The installer must make sure that the measuring system is correctly wired
according to the wiring diagrams. The measuring system is to be grounded.
• Please observe all provisions valid for your country and pertaining to the opening
and repairing of electrical devices.
2.2 Product Requirements
2.2.1 Power source
Check the voltage of the power supply before connecting it to the product. It should be
the exact voltage required for proper operation of the product.
2.2.2 Use in hazardous areas
When using the product in the first or second-class hazard location (Zone 1 or Zone 2)
be sure to use an intrinsically safe or pressure and explosion-proof apparatus. Take the
utmost care during the installation, wiring, and piping of such apparatus to ensure the
safety of the system. For safety reasons, maintenance or repairs on the product while it
is being used with such apparatus should only be performed by qualified personnel.
2.2.3 External connection
When an external connection is required, the product should be protectively grounded
before it is connected to a measurement object or an external control circuit.
2.3 Operational safety
2.3.1 Hazardous area
Measuring systems for use in hazardous environments are accompanied by separate "Ex
documentation", which is an
installation instructions and ratings as stated in this supplementary documentation is
mandatory.
integral part
of this manual. Strict compliance with the
• Please use the explosion-proof type for measurement in explosion-hazardous
areas.
• Instruments used in explosion hazardous areas should be mounted and wired
according to the explosion-proof regulations.
Varec, Inc. 3
Safety instructions Average Temperature/Water Bottom Sensor and Converter
• Instruments mounted in explosion hazardous areas must not be opened when the
power is on. Tighten the cable gland firmly.
• The maintenance and repair of the instrument is limited to fulfill the explosion
proof regulations.
• Ensure that all personnel are suitably qualified.
• Observe the specifications in the certificate as well as national and local regulations.
2.3.2 Power supply
Check that voltage and frequency of the local power supply are in the range of the
technical data of the instrument before turning on the power, in Chapter 12, Technical
data.
2.3.3 Grounding
Do not remove the grounding of the instrument when the power supply is turned on.
This may set the instrument in a dangerous condition.
2.3.4 Wiring
2.4 Return
Make sure of the grounding of the instrument before connecting input and output to
another system.
Caution! Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
The following procedures must be carried out before the instruments is sent to Varec
for repair:
• Always enclose a duly completed "Declaration of Contamination" form. Only then
can Varec transport, examine and repair a returned device.
• Enclose special handling instructions if necessary, for example, safety data sheet as
per EN 91/155/EEC.
• Remove all residue which may be present. Pay special attention to the gasket
grooves and crevices where fluid may be present. This is especially important if the
fluid is dangerous to health, e.g. corrosive, poisonous, carcinogenic, radioactive,
etc.
A copy of the “Declaration of Contamination” is included at the end of this operating
manual in Appendix B.
Caution! No instrument should be sent back for repair without all dangerous material being
completely removed first, e.g. in scratches or diffused through plastic.
• Incomplete cleaning of the instrument may result in waste disposal or cause harm
to personnel (burns, etc.). Any costs arising from this will be charged to the
operator of the instrument.
2.5 Disposal
In case of disposal, please separate the different components according to their material
consistency.
4 Installation and Operations Manual
4532 Safety instructions
EX
EX
2.6 Notes on safety conventions and symbols
In order to highlight safety-relevant or alternative operating procedures in the manual,
the following conventions have been used, each indicated by a corresponding symbol in
the margin.
Safety conventions
Warning!
Caution!
Note!
Explosion protection
Warning!
A warning highlights actions or procedures which, if not performed
correctly, will lead to personal injury, a safety hazard or destruction of
the instrument
Caution!
Caution highlights actions or procedures which, if not performed
correctly, may lead to personal injury or incorrect functioning of the
instrument
Note!
A note highlights actions or procedures which, if not performed
correctly, may indirectly affect operation or may lead to an instrument
response which is not planned
Device certified for use in explosion hazardous area
If the device has this symbol embossed on its name plate, it can be
installed in an explosion hazardous area
Explosion hazardous areas
Symbol used in drawings to indicate explosion hazardous areas.
• Devices located in and wiring entering areas with the designation
“explosion hazardous areas” must conform to the stated type of
protection
Safe area (non-explosion hazardous area)
Symbol used in drawings to indicate, if necessary, non-explosion
hazardous areas.
• Devices located in safe areas still require a certificate if their
outputs run into explosion hazardous areas
Explosion protection
Direct voltage
A terminal to which or from which a direct current or voltage may be
applied or supplied
Alternating voltage
A terminal to which or from which an alternating (sine-wave) current or
voltage may be applied or supplied
Grounded terminal
A grounded terminal, which as far as the operator is concerned, is
already grounded by means of an earth grounding system
Protective grounding (earth) terminal
A terminal which must be connected to earth ground prior to making
any other connection to the equipment
Equipotential connection (earth bonding)
A connection made to the plant grounding system which may be of type
e.g. neutral star or equipotential line according to national or company
practice
Varec, Inc. 5
Safety instructions Average Temperature/Water Bottom Sensor and Converter
6 Installation and Operations Manual
4532 Identification
3 Identification
3.1 Device designation
3.1.1 Nameplate
4532 Series
Temperature Device
Ex ia IIB T
ATEX II 1/2 G
KEMA 08 ATEX 0012 X
Ambient Temperature -40 °C to °C
Ui<30V Ii<120mA Pi<1W
Ci=7.9nF Li=48µH
Do not modify parts and circuits of this instrument.
5834 Peachtree Corners East Norcross (Atlanta)
Made in Japan
WARNING
Varec, Inc.
Georgia 30092 USA
16-04532AT Rev B
Figure 3-1: 4532 ATC labels
N453
Order Code
Mfg. Date
Serial No.
Span °C to °C
0820
APPROVED
Ambient Temperature -40 °C to °C
Ui<30V Ii<120mA Pi<1W
Ci=6.6nF Li=48μH
Do not modify parts and circuits of this instrument.
5834 Peachtree Corners East Norcross (Atlanta)
Made in Japan
453x Series
Temperature Device
Length mm
5834 Peachtree Corners East Norcross (Atlanta)
Varec, Inc.
Georgia 30092 USA
4532 Series
Temperature Device
IS Cl. I, Div. 1, Gp. C,D
Cl. I, Zone0, AEx ia IIBT
NI Cl. I, Div. 2, Gp. C,D
WARNING
Install per control drawing Ex461-869
Varec, Inc.
Georgia 30092 USA
16-0453x Rev EMade in Japan
16-04532 Rev C
NEMA 4X
Figure 3-2: Product label for 453x average temperature devices
3.2 Scope of delivery
• Instrument according to the version ordered
• ToF Tool (CD-ROM)
• Accessories (as ordered)
Varec, Inc. 7
Identification Average Temperature/Water Bottom Sensor and Converter
3.3 CE marks, declaration of conformity
The instrument is designed to meet state-of-the-art safety requirements, has been
tested and left the factory in a condition in which it is safe to operate. The instrument
complies with the applicable standards and regulations in accordance with EN 50014
"Electrical apparatus for potentially explosive atmospheres-General requirements". The
instrument described in this manual thus complies with the statutory requirements of
the EG directives. Varec confirms the successful testing of the instrument by affixing to
it the CE mark.
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4532 Installation
4 Installation
4.1 Design, dimensions
142.5 mm
215 mm
Ф10
Ф26
Figure 4-1: 4532 ATC dimensions
Flexible tube
depends on the
tank height
Bottom hook
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Installation Average Temperature/Water Bottom Sensor and Converter
Recommended procedure
Incorrect procedure
4.2 Unpacking
When unpacking, be careful not to bend, fold or twist the flexible tube. Please refer to
the recommended procedure below.
4.3 Flexible tube
When attaching and bending the flexible tube, the radius of curvature must be at least
300 mm (11.8") at any bend portion.
Flexible tube
Min.1m (39.37")
Figure 4-2: Flexible tube
Note! If a flexible tube is bent with a radius of curvature less than 300 mm (11.8"), the flex-
ible tube or the measuring element may be seriously damaged or broken.
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4532 Installation
4.4 Installation Instructions
Note! The level sensor circuit is connected to ground and is infallibly galvanically isolated
from the supply and output circuit and from the temperature measurement circuit.
All metal parts of the sensor and the transmitter shall be electrically conductive and
securely be connected to the potential equalization system within the hazardous area.
4.5 Special conditions for safe use
To exclude ignition sources due to sparks caused by impact or friction, even in the event
of rare incidents, do not subject the temperature sensor tube to environmental stress,
such as impact from moving parts. Also, make sure the bottom part is secured.
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