Varec Network Adapter 4000 Installation And Operation Manual

4000 Tank Gauge Transmitter

Advanced Technology Transmitter for transmission of level and
temperature data from the tankside to inventory management
systems

Installation and
Operations Manual

IOM003GVAE0809

www.varec.com

5834 Peachtree Corners East, Norcross (Atlanta), GA 30092 USA

Tel: [phone] Fax: [phone]

Varec, Inc.

4000

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), Georgia 30092
Phone: [phone]
Fax: [phone]

Trademarks acknowledged

Varec, Inc. recognizes all other trademarks. Trademarks of other products mentioned in
this document are held by the companies producing them.

FuelsManager®, TankView®, TacFuels®, Varec®, and FuelsManager IntoPlane® are
registered trademarks of Varec, Inc.

MODBUS® is a registered trademark of Modicon, Inc.

TIWAY® is a registered trademark of Texas Instruments Corporation.

HART® interface is a registered trademark of HART communications foundation.

Rosemount® and Smart Family® are registered trademarks, and HART is a
trademark of Rosemount Inc.

All other product and service names mentioned are the trademarks of their
respective companies.

i

Advanced Technology Transmitter

Disclaimer of Warranties

The contract between the Seller and the Buyer states the entire obligation of the Seller.
The contents of this instruction manual 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 instruction manual. The only
warranties that apply are those in the existing contract between the Seller and Buyer.

The 4000 Advanced Technology Transmitter (ATT) has not been tested by Varec under
all possible operational conditions, and Varec may not have all the data relative to your
application. The information in this instruction manual 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 or her application. If you have any further questions,
please contact Varec for assistance.

Limitations of Seller's Liability

In the event that a court holds that this instruction manual 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.

Use of parts that are not manufactured or supplied by Varec voids any warranty and
relieves Varec of any obligation to service the product under warranty. Varec
recommends the use of only Varec manufactured or supplied parts to maintain or
service Varec 4000 Advanced Technology Transmitters.

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.

This manual is solely intended to describe product installation and functions and should
not be used for any other purpose. It is subject to change without prior notice. This
manual was prepared with the highest degree of care. However, should you find any
errors or have any questions, contact one of our service offices or your local sales agent.

ii Installation and Operations Manual

4000

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 this manual carefully and make sure you understand its contents before using this
product. Follow all instructions and safety guidelines presented in this manual when
using this product. If the user does not follow these instructions properly, Varec cannot
guarantee the safety of the system.

Note Comply with all applicable regulations, codes, and standards. For safety pre­cautions, the user should refer to the appropriate industry or military standards.

Caution! Electrical Hazard! Read and understand static and lightning electrical
protection and grounding described in API 2003. Make certain that the tank instal­lation, operation, and maintenance conforms with the practice set forth therein.

iii

Advanced Technology Transmitter

iv Installation and Operations Manual

4000

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2 Getting Acquainted with the Advanced Technology Transmitter (ATT) . . . . .1

1.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.4 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.5 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1.2 Storage Prior to Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1.3 Becoming Familiar with the ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.1.4 Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.2 Mounting the Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.3 Grounding the Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.4.1 ATT Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.4.2 Wiring Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.4.3 Connecting Input Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.4.4 Connecting Host Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4.5 ATT EIA485 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4.6 ATT Mark/Space Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.5 Connecting the RTD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.5.1 Connecting the Handheld Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.5.2 Wiring Completion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.5.3 Installation Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2.5.4 Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.1 Configuration Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2 1200 Hand Held Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.3 Terminal Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.4 Menu Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.4.1 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.4.2 Summary Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3.4.3 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

3.4.4 Host Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

3.4.5 Notes on Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

3.5 Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

3.5.1 Imperial Fractional 1900 Quick Setup Defaults . . . . . . . . . . . . . . . . . . . . .20

3.5.2 Imperial Decimal 1900 Quick Setup Defaults . . . . . . . . . . . . . . . . . . . . . .21

3.5.3 0-20 Meter 1900 Quick Setup Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . .22

3.5.4 0-30 Meter 1900 Quick Setup Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . .23

v

3.5.5 Imperial Fractional 1800 Series Transmitter Quick Setup . . . . . . . . . . . . . 24

3.5.6 Imperial Decimal 1800 Series Transmitter Quick Setup. . . . . . . . . . . . . . . 24

3.5.7 0-20 Meters 1800 Series Transmitter Quick Setup . . . . . . . . . . . . . . . . . . 24

3.5.8 0-30 Meters 1800 Series Transmitter Quick Setup . . . . . . . . . . . . . . . . . . 24

3.5.9 Imperial Modbus Quick Setup Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.5.10 Metric Modbus Quick Setup Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4 Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.3.1 ATT Error Status Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.4 ATT Status Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.5 ATT Configuration Error Checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.6 Model 1200 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.7 Host Communication Loopback Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Tank Gauge Transmitter

5 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1 Specifications and Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.1 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.2 Physical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.3 Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.4 Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2 Safety Agency Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2.1 Explosion Proof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2.2 Intrinsic Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 Major System Assemblies and Components. . . . . . . . . . . . . . . . . . . . . . . . 34

6 Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.1 Order Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.2 CPU Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.3 Status Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.4 ATTI Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.5 Host Communications Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.6 Level Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.6.1 Back-up Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.6.2 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.7 Encoder Battery Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.8 Temperature Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

vi Installation and Operations Manual

4000

7.9 Host Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

7.10 Mark/Space Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

7.11 Modbus Support over Mark/Space Host Interface . . . . . . . . . . . . . . . . . . . .43

7.12 Compatibility with Varec Tank Polling Unit . . . . . . . . . . . . . . . . . . . . . . . . . .43

8 ATT Family of Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

8.1 Model 4040 Display Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

8.2 Model 4050 Digital Input/Output Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

8.2.1 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

8.2.2 Digital Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

8.2.3 Relay Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

9 Modbus Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.2 Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.3 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

9.4 Functions and Data Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

9.5 Integer Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

9.5.1 Integer Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

9.5.2 Integer Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.3 Character Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

9.5.4 Coded Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.5.5 Packed Bit Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

9.6 Floating-Point Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.6.1 Floating-Point Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.6.2 The Two 16-bit Registers Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.6.3 Floating Point Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

9.6.4 The One 32-bit Register Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

9.6.5 Floating Point Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

9.6.6 Floating Point Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

9.7 Status Bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.7.1 Status Bit Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.8 Exception Responses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

9.9 Data Out of Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.10 Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.11 Hardware Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

9.12 Integer Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

9.13 Floating Point Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

9.14 Status Bit Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

10 Optional Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

10.1 4000TIFMO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

vii

10.2 4000GEFMO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10.3 4000LJFMO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10.4 4000MXFMO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10.5 4000WBFMO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

10.6 4000GMFMO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Tank Gauge Transmitter

viii Installation and Operations Manual

4000 Introduction

FuelsManager

Software

8130 RTU

or

8300 TGI

Loop Communcations

Star Communcations e.g. Mark/Space

Field

Junction Box

+24V

+5V

+15V

-15V

CPU

COMM

I/O

ERROR

Communications

between DCS/PLCs

for control capabilities

Tank Gauge

and

Transmitter

Power

Loop

Communcations

3-wire

RTD

1 Introduction

1.1 Using This Manual

This manual is designed to assist the user with the installation, configuration, operation,
maintenance, and troubleshooting of the Varec Model 4000 Advanced Technology
Transmitter (ATT).

1.2 Getting Acquainted with the Advanced Technology Transmitter (ATT)

The Varec Model 4000 Advanced Technology Transmitter (ATT), in conjunction with a
host, represents a data acquisition and communications system for use in liquid level
measurement and/or other measurement applications. Liquid level measurement is
provided by the Advanced Technology Transmitter coupled to a Varec Model 2500 or
other level gauge, as shown in Figure 1-1.

Figure 1-1: Tank Installation with Model 4000 ATT

1

Introduction Tank Gauge Transmitter

1.3 Operation

The ATT uses an incremental counting technique for determining liquid level. An initial
level is identified as part of the calibration procedure. Changes to that level are
determined through incremental increases or decreases detected by the ATT.

The host computer collects measurement information by polling the Advanced
Technology Transmitter over a variety of communication interfaces such as EIA485 and
Mark/Space. Several communication protocols are supported. Among them are Modbus
and Mark/Space.

1.4 Configuration

The Varec Model 1200 Handheld Terminal is used to configure the ATT. It connects to
the same ATTI bus used to interconnect other input/output devices to the ATT. There is
a special connection located inside the junction box for the Handheld Terminal.

1.5 Construction

The Advanced Technology Transmitter is housed within an aluminum enclosure. The
enclosure and assembly meet explosion proof requirements and are environmentally
sealed to prevent internal exposure to contamination.

8 "

(203 mm)

7.5 "

(190 mm)

12 "

(308 mm)

4 "

(101 mm)

6.8 "

(172 mm)

Figure 1-2: Model 4000 Advanced Technology Transmitter Assembly

2 Installation and Operations Manual

3.7 "

(94 mm)

3.4 "

(86 mm)

4000 Installation

2 Installation

2.1 Overview

This section contains instructions for unpacking, mounting, grounding, and wiring the
Varec Model 4000 Advanced Technology Transmitter (ATT) assembly. An installation
checklist is also included.

Warning! To avoid electric shock and possible injury, do not perform any service procedures

other than those specified in this manual. These installation instructions are for use
by qualified service technicians.

Figure 2-1: Model 4000 ATT mounted on Model 2500 ATG

2.1.1 Unpacking

Remove the ATT from the shipping container and inspect it for evidence of shipping or
handling damage. Report any shipping damage to the carrier. Verify that the contents
of the shipping container agrees with the packing list.

2.1.2 Storage Prior to Installation

If the ATT is to be stored prior to installation, it should be repackaged in its shipping
container and stored in a temperature and humidity controlled environment.

2.1.3 Becoming Familiar with the ATT

The ATT is housed within an explosion proof enclosure. A cover is provided to permit
access to both the electronics and backup batteries.

3/4- and 2 1/2-inch NPT plugs are provided for wiring access. Wiring to the ATT
consists of connecting power, host communication, RTD input and an optional ground
connection.

2.1.4 Hardware Configuration

All configuration is performed using the Model 1200 Handheld Terminal or a download
from a host computer. However, certain parameters such as communication address and
speed must be configured via the Model 1200 Handheld Terminal.

3

Installation Tank Gauge Transmitter

Sprocket Sheave

Pin drive

Back
cover

2500

Automatic

Tank Gauge

Transmitter

External enclosure ground

connection by installer

Drive coupling

5/16 split lock washers (4 places)

5/16-18 X 1 mounting bolts (4 places)

Integral junction

box

Junction

box cover

External Ground Lug

Back Cover

Gauge cover mounting

bolts (15 places)

2.2 Mounting the Equipment

The ATT is bolted to the Model 2500 Automatic Tank Gauge head as illustrated in
Figure 2-2. It may also be mounted to Endress+Hauser, Sakura, Tokyo-Keiso, Shand &
Jurs, and Gauging Systems, Inc. float and tape gauges with the Endress+Hauser adapter
shown in the following table.

Part Number Gauge Adapter Kit

13-05956-102 L&J (Shand & Jurs) 92513, 92514, 92020, 92030

13-05956-202 Whessoe 2006, 2026, 2036 and L&J (Shand & Jurs) 92006

Mounting the ATT to the Level Gauge is accomplished in the following manner:

1. Remove the back cover of the Level Gauge.

2. Remove the access cap from the back cover of the Level Gauge.

3. Mount the ATT in place of the access cap, making certain that the word "TOP" cast
into the housing lines up with the top of the Level Gauge back cover.

4. Install the Level Gauge back cover with the transmitter in the Level Gauge. Make
certain that the slot in the ATT drive coupling engages with the pin on the tape
sheave of the Level Gauge.

5. Proceed with field wiring.

Figure 2-2: ATT Mounting Diagram

4 Installation and Operations Manual

4000 Installation

2.3 Grounding the Equipment

Warning! The ATT must be grounded before communication and power connections are

made.

An external grounding lug is provided on the ATT. A connection from the ground lug to
earth ground must be made before any other wiring connections are made.

Note! For adequate/proper operation of the ATT lightning arrestor, a ground strap must be

attached to the ATT. Grounding through mounting kits or pipe coupling is not ade­quate.

Note! Properly seal all ports to prevent moisture or other contamination from entering the

wiring compartment.

2.4 Wiring

Connections should be made in a conventional manner according to local or plant
electric codes.

Warning! Explosion-proof seals must be installed in all wiring entries. Any unused entries must

be plugged with pipe plugs and secured with Loctite®, or equivalent.

2.4.1 ATT Wiring

Wiring the ATT is described in the following paragraphs. The wiring diagram provided
in Figure 2-3 on page 6 should be used in conjunction with these wiring instructions.

2.4.2 Wiring Preparation

Remove the two thread protectors from the 1/2-inch NPT conduit entries at the top and
bottom of the ATT. Remove the rear cover from the ATT housing.

2.4.3 Connecting Input Power

Warning! When connecting DC power leads to the ATT, make certain that power is OFF.

The ATT operates on a 24-48 volts DC power source. The input power connection to the
ATT is accomplished in the following manner.

Connect the positive side of the power supply to terminal 10, B+, and the negative side
to terminal 9, B-, of the terminal block assembly. See Figure 2-3 on page 6.

5

Installation Tank Gauge Transmitter

Figure 2-3: ATT Field Terminal Block Wiring

Terminal Block One TB1 Terminal Block Two TB2

1 L+ = ATTI expansion Bus +

power

2 HPORT = ATTI bus HART Signal 11 M = Mark or EIA485 -

3 L- = ATTI expansion Bus -

power

4 C = RTD C lead 9 B - = ATT - power

5 B = RTD B lead 8 -- = Reserved

6 A = RTD A lead 7 -- = Reserved

2.4.4 Connecting Host Communication

The procedure used to wire the ATT to the host computer depends on the type of host
interface option ordered with the ATT.

12 S = Space or EIA485 +

10 B + = ATT + power

6 Installation and Operations Manual

4000 Installation

2.4.5 ATT EIA485 Wiring

The ATT uses a 2-wire EIA485 hardware interface to communicate with the Modbus
master. EIA485 is a high speed differential communications network which allows up to
32 devices to operate on one network. The ATT and Modbus master share a twisted pair
of wires to communicate. Figure 2-4 illustrates the typical EIA485 wiring.

The communication distance that EIA485 can reliably travel is dependent on baud rate
(communication speed), wire quality, environmental noise, wiring configuration, and the
number of multi-dropped ATTs. The recommended wire for EIA485 systems is
18-gauge or larger, shielded, twisted pairs. The shield should be earth grounded at the
Modbus master (control system or computer end). The shield at the ATT should be open.
The ATT B- power line acts as a common reference tie to the Modbus master. Figure 2-5
on page 8 illustrates the EIA485 Modbus system.

TB2

TB2

Power Supply

6

5

4

+48
VDC Common

Figure 2-4: Typical EIA485 Wiring

RTU 8130 with 8230 expansion module

7

Installation Tank Gauge Transmitter

110/220 VAC 50/60 Hz.

Model 8130 with optional
48 VDC power supply.

Field Junction Box

Field Junction Box

Host Computer Interface

MODBUS interface is

certified by Honeywell

Office Printer

RS232 To FuelsManager
or other MODBUS master

Area 1

Area 0

FuelsManager

RTU 8130

Model 4000 ATT

Transmitters*

Model 4000 ATT

Transmitters*

Two 18 AWG
twisted pair cables

Two 18 AWG
twisted pair
cables

EIA85 comm.
with MODBUS to FIC

RS232 serial port

50 feet max to FIC

* Up to 31 units with
5000 ft. max. wiring distance
using good quality wire.

Figure 2-5: Typical EIA485 System Wiring

8 Installation and Operations Manual

4000 Installation

2.4.6 ATT Mark/Space Wiring

For an ATT using the Mark/Space field communications option, the following additional
wiring connections must be made. (Refer to Input Power Wiring in Section 6 to determine
the minimum wire size required.). See Figure 2-6.

• Run two twisted pairs of 18 AWG wire (Mark/Space wires) into the ATT through the

conduit entry along with the 48 VDC power wiring.

• Connect the Mark line to terminal 11, M/485-, and the Space line to terminal 12,

S/485+, on the terminal block assembly.

8203 With 8210

expansion module

Field Junction Box

To Other

4-Wire

Transmitters

in Area 0

4 Conductor

Cable
18 AWG
Shielded

Ground shield at RTU8130 ONLY!

Do NOT ground shield at transmitter.

External
Power Supply

Figure 2-6: Typical Mark/Space Field Wiring

Model 4000

Details of RTU8130 with 8210 expansion
module and ATT termination board wiring

Varec

ATT

9

Installation Tank Gauge Transmitter

2.5 Connecting the RTD

The following list shows how the ATT is wired to an RTD device. The ATT’s temperature
circuit is designed to work with a platinum or copper 3-wire RTD.

2.5.1 Connecting the Handheld Terminal

Figure 2-3 on page 6 shows how the 1200 Hand Held Terminal is connected to the ATTI
bus on the ATT. The Model 268 can also be used to configure the ATT.

Warning! The 1200 Hand Held Terminal on the ATT is not Intrinsically Safe. Care must be

taken to only use in a non-hazardous environment

Wire as follows:

• Connect the RTD's A terminal to the ATT's terminal 6, A.

• Connect the RTD's B terminal to the ATT's terminal 5, C.

• Connect the RTD's C terminal to the ATT's terminal 4, C.

2.5.2 Wiring Completion

Caution! Do not overtighten metal plugs used to seal wiring compartment ports. Overtighten-

ing may damage the housing.

Properly seal the 1/2-inch NPT conduit entry. Install cover and tighten to ensure that the
O-ring seal is adequately compressed. Proper sealing of all ports is necessary to prevent
moisture or other contamination from entering the wiring compartment.

2.5.3 Installation Checkout

After a thorough check that all connections are correctly made and that all covers and
plugs are installed, turn on power to the ATT. Proceed to Chapter 3, Configuration.

2.5.4 Installation Checklist

The steps required in the installation process are summarized in the following checklist.
Since each step is detailed specifically with accompanying notes, cautions, and
warnings, be sure to refer to the sub-sections indicated for further information.

Unpack the ATT and check the packing list. Unpacking

Verify that the required input power is available. Mounting the ATT, Wiring

Mount the ATT. Mounting the Equipment

Ground the ATT. Grounding the Equipment

Route the conduit between the ATT and other
devices and seal all ports.

Wire the host communications. Connecting Host Communication

Wire the RTD Connecting the RTD

Wire the input power connections. Connecting Input Power

Apply power to the ATT. Installation Checkout

Wire the Model 1200 Handheld Terminal Connecting Handheld Terminal

Proceed to ATT configuration procedure. ATT Configuration (Section 3)

Step Sub-Section(s) Reference

Wiring Completion

10 Installation and Operations Manual

4000 Configuration

3 Configuration

The Varec Model 4000 Advanced Technology Transmitter (ATT) must be configured for
the specific tank, attached sensors, and host interface. This section provides detailed
information on ATT configuration.

The ATT can be configured with a 1200 Hand Held Terminal or from a host program
such as Varec TankView.

3.1 Configuration Parameters

Configuration parameters associated with ATT operation are entered and modified
using the Model 1200 and can be divided into the following areas:

• General Configuration - includes units of measure, level calibration, temperature

type selection, and alarm setpoints.

• Host Configuration - includes the type of host interface used, baud rate selection,

and emulation modes for other level transmitters.

3.2 1200 Hand Held Terminal

The ATT can be used with a 1200 Hand Held Terminal, see Figure 3-3 on page 13. The
Model 1200 provides a local terminal interface to configure the ATT and encoder at
tankside. It is connected to the ATTI bus. It can be physically attached via two banana
plugs located inside the terminal block housing.

The ATT uses the Model 1200 in a different mode of operation. Normally, the Model
1200 polls the ATTI BUS device, recognizes it, and goes into an internal menu system
that is specifically tailored to that ATTI Bus device. The ATT however, uses the Model
1200 in what is called ASCII Terminal mode. In this mode, the Model 1200 sends
keyboard activity to the ATT and displays screen information from the ATT. The ATT can
not be configured with the Rosemount Model 275 Terminal.

Because of the way the ASCII Terminal mode works on the Model 1200, the ATT is unable
to poll any ATTI BUS device while communicating to it. The ATT goes from an operational
mode to an off-line mode. The operational mode is automatically switched to when the
Model 1200 is removed from the ATTI BUS bus.

Warning! The 1200 Hand Held Terminal on the ATT is not Intrinsically Safe. Care must be

taken to only use in a non-hazardous environment.

Function keys F1 through F4, defined in Figure 3-1 on page 12, are used for basic
scrolling of the ATT menus and selection of configuration parameters.

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Configuration Tank Gauge Transmitter

Function Key Description

HELP Help Message

F1 Scroll Up

F2 Scroll Down

F3 Alter/Backspace

F4 Enter

Previous Function [ ] Return to previous menu or abort data entry

Table 3-1: Model 1200 Function Keys

Alpha and numeric information is entered from the keypad directly. Numeric data is
entered using a single keystroke, while alpha information is entered with a two-key
combination. The two-key combination for alpha data consists of a shift key followed
by a numeric key to select the desired alpha character.

For example, to enter the alpha character "N"; first press the shift key, then press the
number 4. To enter the alpha character "R"; first press the shift key, then press the
number 1.

Terminal Mode
Configuration

When the Model 1200 is connected to the ATTI Bus and turned on, a blank screen will
appear on the Model 1200 after a self test sequence. Pressing any key will cause the
following screen to appear on the Model 1200 display:

The version indicated is the software version of the ATT.

Enter a "D" (to select Display Mode entries) or an "A" (to select Alter Mode entries) and
press F4 (Enter).

If the Display Mode is selected with a "D", current status and configuration data may be
examined but cannot be modified. This mode is useful for verifying ATT configuration.
This mode cannot be used to actively monitor ATT operation, as normal ATT operation
is suspended when the Model 1200 is connected.

Figure 3-1: ATT Alter Mode Menu Tree

If the Alter Mode is selected with an "A", all applicable configuration parameters can be
modified. Figure 3-2 on page 13 illustrates the display mode menu tree and Figure 3-1
on page 12 illustrates the Alter Mode menu tree. The menu tree groups related items
under separate menus and sub-menus. The menu grouping is provided to permit the
field operator to configure and display items in a related and logical order. Once a menu
is selected, the operator can scroll through related items.

12 Installation and Operations Manual

4000 Configuration

Previous Function

ON / OFF

Shift

Figure 3-2: ATT Display Mode Menu Tree

Figure 3-3: 1200 Hand Held Terminal

3.3 Terminal Mode Operation

The 1200 Hand Held Terminal is used to scroll through the various ATT menus. Basic
scroll and selection operations are performed using the four function keys (F1 through
F4) immediately below the display.

Line 1 of the display contains the menu title. Lines 2 and 3 are item display lines. Line 4
is an error message/status line.

If the item displayed on line 2 is preceded with an "M>", the item being displayed is a
menu. Select the menu by pressing F4 (Enter). If the item is preceded by a "C>" the item
being displayed is a command that can be executed by pressing F4 (Enter).

Where:

F1 = Up
F2 = Down
F3 = Alter
F4 = Enter

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Configuration Tank Gauge Transmitter

3.4 Menu Operation

For example, when the Main Menu is displayed on the top line, pressing F1 (Up) will
scroll up through the possible main menu selections while pressing F2 (Down) will scroll
down through the possible main menu selections.

Pressing F4 (Enter) will cause the selection of the sub-menu displayed on lines two and
three (such as Config Menu). Scrolling through a sub-menu is performed in the same
manner as scrolling through the Main Menu using the F1 and F2 keys.

To return to the Main Menu, press the PREVIOUS FUNCTION key [ ], as shown in
Figure 3-3 on page 13.

When a parameter is encountered which is to be changed, pressing the F3 key (Alter) will
cause the display of the current parameter in a form which permits its modification.

When a specific set of parameters is available, the F1 and F2 keys can be used to scroll
through the valid selections. When the desired selection is displayed, pressing the F4
key (Enter) will cause selection of the new parameter. When the parameter consists of
numeric or free format characters, the Model 1200 keyboard can be used to enter the
parameter. Note that parameter alteration is not final until the session is completed with
the EXIT AND SAVE command from the Main Menu.

To complete parameter alteration, scroll through the Main Menu until the following
display is presented, then press F4 (Enter) to exit and save the altered parameters.

If parameter alteration is to be aborted (new parameters not saved), scroll through the
Main Menu until the following display is presented and press F4 (Enter) to quit without
saving alterations. The QUIT or EXIT AND SAVE commands must be initiated before
turning off or disconnecting the 1200 Hand Held Terminal.

14 Installation and Operations Manual