Varec 4000 - Manual (Page 11)

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