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Varec, Inc. 25
4532 Wiring
Note! The 4590 TSM has three sets of i.s. HART terminals. These three pairs are looped
internally.
Caution! Do not connect signal HART lines from the 4532 ATC to terminals 30 and 31. They
are designed to supply drive power for the 7500 Series Radar Tank Gauge only.
6.2 Grounding
The 4532 ATC must be grounded to the tank potential before communication and power
connections are made. The connections from ground terminal of the 4532 ATC to the
tank ground must be made before any other wiring connections are made. All grounding
must be compliant with local and company regulations and checked before the
equipment is commissioned.
Figure 6-4: The 4532 ATC Grounding
Z1
Z1
H2-
H2-
H2+
H2+
H1-
H1-
H1+
H1+
Z2
Z2
Z3
Z3
AR1
AR1
Ground terminal
to 4590 TSM or
6000 Series Servo
Tank Gauge
A > 4 mm
2
Tank Ground