GE Moisture Image 1 Series, Service Manual, Page: 20 / 107

Installing Optional Features 1-11
June 2003
Connecting Pressure
Transmitters
The Series 1 accepts two types of pressure transmitters:
Note: Optional auxiliary inputs are required.
•
Two-wire or loop-powered transmitter (this is always a 4 to 20-mA
system)
•
Four-wire or self-powered transmitter (this can be either a current
or voltage output system)
Connect the pressure transmitters on the desired channel(s) to the
designated pins on the AUX terminal block located on the back of the
electronics unit. Pin connections include at least one of the auxiliary
inputs (pin 1 or 2, see Figure 1-8). Because you are connecting the
sensor to one of the auxiliary inputs, you must set the corresponding
auxiliary switch to either current or voltage (refer to
C. Setting Input
Switches on page 1-14).
Use the appropriate section that follows to connect a pressure
transmitter to the meter.
Figure 1-8: AUX Terminal Block Pin Designations
+ - + - RTN 1 2 +24V
Return
Auxiliary
Inputs
1 2
+24
Source
Self Po
wered
Lo
op
Po
we
red