Connect To Your Own Supply And Control Equipment - Edwards AIM-S-NW25 Instruction Manual

NRA737880 Issue E
3.3.2

Connect to Your Own Supply and Control Equipment

Note:
Do not connect the electrical supply common (pin 2) to the signal common (pin 5). If you do, the AIM Gauge
pressure output signal will be inaccurate.
A schematic diagram of the recommended electrical connections to the AIM Gauge is shown in
The pins on the AIM Gauge electrical connection socket are used as shown in
electrical supply, d.c. relay and back EMF suppression diode are given in
Figure 3 - Schematic Diagram of Typical Electrical Connections
Page 6
1. AIM Gauge electrical connector socket
2. Cable electrical connector plug
3. Electrical supply
4. Voltmeter
5. D.C. relay (optional)
6. Back EMF suppression diode (optional)
7. Gauge enable switch
Table 1 - Pins on the AIM Gauge Electrical Connector Socket
Pin
Number
1 Electrical supply positive voltage
2 Electrical supply common
3 Pressure measurement output signal
4 Gauge identification signal
5 Signal common
6 Error output signal
7 Gauge enable
8 No connection
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Table 1. The specification of the
Section 2.
Use
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Figure 3.