Digital Communications Wiring Connections - GE HygroTrace User Manual

Digital Communications Wiring Connections

If the unit is to be operated using PanaView™ instrumentation
software installed on a computer, an RS232/RS485 converter
must be used and the wiring must be set up as follows.
The transmitter must be wired using the factory-supplied cable
(two meters in length).
Note: To lengthen cables, refer to Table 2 below to splice an
extension onto the existing cable. Connect positive to
positive, negative to negative, and ground to ground.
Note: EMI ferrite shielding may be required for communication
through an ungrounded serial port. Please consult the
factory for guidance.
Use the following steps to wire the transmitter to the system.
1. Align the red dot with the red mark (see Figure 3 on page 4)
and push the connector on the transmitter cable into the
mating connector on the transmitter module. Make sure the
pins are properly aligned. Secure the connectors by pushing
the cable connector until it locks in place.
2. Using the flying leads at the other end of the transmitter cable,
connect the transmitter to the power supply, the data
acquisition system (DAS) and the computer as shown in
Figure 4 on page 6. Refer to Table 2 below for a description of
the leads in the factory-supplied cable.
Table 2: Cable Lead Connections - with PC
Lead
Red
Black
Orange
Blue
White
Green
Cable Braid
HygroTrace Moisture Transmitter
Connection Description
(+) 24VDC 1 AMP
(–) 24VDC 1 AMP
(+) 4-20mA Output
(–) 4-20mA Output
(+) RS485
(–) RS485
System Ground
September 2007
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