Teledyne 3010TAC - Split architecture trace oxygen analyzer (EU - CENELEC) - Manual (Page 28)

3 Installation Model 3010TAC
3-6: Part I
Teledyne Analytical Instruments
• 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. Perma-
nently configured as failsafe and latching. Cannot be
defeated. Actuates if self test fails.
(Reset by pressing button to remove power.
Then press again and any other button EXCEPT
System to resume.
Further detail can be found in chapter 4, section 4-5.
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 V dc (on) inputs
for remote control of calibration. (See Remote Calibration Protocol be-
low.) 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 Remote Probe Connector. (The –C
option internal valves operate automatically.)
Span: Floating input. 5 to 24 V input across the + and – pins puts
the analyzer into the
Span mode. Either side may be
grounded at the source of the signal. 0 to 1 volt across the
terminals allows
Span mode to terminate when done. A