P/N: 974153 |
Rev: 072016
|
ECO: 46503
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6.3.2 CONNECTING THE HART HANDHELD COMMUNICATOR
In hazardous areas, refer to the handheld communicator instruction manual for instructions for HART
Communicator to function properly.
A minimum of 250 Ohms resistance must be present in the loop.
The HART Communicator does not measure loop current directly.
The HART Communicator can interface with the SPX anywhere along the 4 - 20 mA cable as shown in the
following figure.
Figure 6-1 HART Communicator Interface
6.3.3 PROCEDURE
1.
Connect Power Supply and HART Communicator per the above diagram.
2.
If commissioning on the bench with a dead weight tester or calibrated pressure source, insure
pressure connection is free of leaks.
ATTENTION
