Teledyne BDS-3960 operating instructions System Alarm, Pin Contact

Installation BDS 3960

Threshold Alarm 2:

•Can be configured as high (actuates when concentration is above threshold), or low (actuates when concentration is below threshold).

•Can be configured as failsafe or nonfailsafe.

•Can be configured as latching or nonlatching.

•Can be configured out (defeated).

System Alarm:

•Actuates when DC power supplied to circuits is unacceptable in one or more parameters. Permanently configured as failsafe and latching. Cannot be defeated. Actuates if communication with PPC fails.

Further detail can be found in Chapter 4, Section 4-5.

Table 3-2: Alarm Relay Contact Pins

Pin Contact

45Threshold Alarm 1, normally closed contact

28Threshold Alarm 1, moving contact

46Threshold Alarm 1, normally open contact

42Threshold Alarm 2, normally closed contact

44Threshold Alarm 2, moving contact

43Threshold Alarm 2, normally open contact

36System Alarm, normally closed contact

20System Alarm, moving contact

37System Alarm, normally open contact

Digital Remote Cal Inputs: Accept 0 V (off) or 24 V dc (on) inputs for remote control of calibration. (See Remote Calibration Protocol below.) See Table 3-3 for pin connections.

Teledyne Analytical Instruments 36