Varec Network Adapter 4000, Installation And Operation Manual, Page: 11 / 80

1
4000 Introduction
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
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