Table 3-2: Alarm Relay Contact Pins - Teledyne 3000ZA2G Operating Instructions Manual

Trace Oxygen Analyzer
Can be configured as failsafe or non-failsafe.

Can be configured as latching or non-latching.

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 self test
fails.
(Reset by pressing

press
simultaneously to resume.
Further detail can be found in Chapter 4, Section 4.6.


Table 3-2: Alarm Relay Contact Pins

Pin Contact
45 Threshold Alarm 1, normally closed contact
28 Threshold Alarm 1, moving contact
46 Threshold Alarm 1, normally open contact
42 Threshold Alarm 2, normally closed contact
44 Threshold Alarm 2, moving contact
43 Threshold Alarm 2, normally open contact
36 System Alarm, normally closed contact
20 System Alarm, moving contact
37 System Alarm, normally open contact
Digital Remote Cal Inputs: Accept 0 V (off) or 24 VDC (on) inputs for
remote control of calibration. (See Remote Calibration Protocol below).
See Table 3-3 for pin connections.
Zero: Floating input. 5 to 24 V input across the + and – pins puts the
analyzer into the Zero mode. Either side may be grounded at
the source of the signal. 0 to 1 volt across the terminals allows
Zero mode to terminate when done. A synchronous signal must
open and close the external zero valve appropriately. See
Teledyne Analytical Instruments
button to remove power to relay. Then
again and any other button Up and Down
Installation
21