623A, 623B, 624A, & 625A Capacitance Manometer Pin-outs

Terminal Block 1 (TB1)
Pin Description
1 Power Common
2 Signal Common
3 Signal Output
4 -15 VDC
5 +15 VDC
Note: Chassis Ground. to screw labeled Chassis
Terminal Block 2 (TB2)
Pin Description
1 Trip Point A Level (0 to 10 Volts)*
2 Trip Point A Relay, Normally Closed
3 Trip Point A Relay, Common
4 Trip Point A Relay, Normally Open
5 Trip Point B Relay, Normally Open
6 Trip Point B Relay, Common
7 Trip Point B Relay, Normally Closed
8 Trip Point B Level (0 to 10 Volts)*
*Note: Use pin 2 of TB1 for trip point signal common

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