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Teledyne 3010MA – Paramagnetic oxygen analyzer, no 0-100% range – (superceded) User Manual

Page 32

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Part 1 Control Unit

Model 3010MA

Teledyne Analytical Instruments

32

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
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.

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

synchronous signal must open and close external span valve
appropriately. See Figure 3-5 Remote Probe Connector.
(The –C option internal valves operate automatically.)

Cal

Contact: This relay contact is closed while analyzer is

spanning and/or zeroing. (See Remote Calibration Protocol
below.)

Table 3-3: Remote Calibration Connections

Pin Function

9

+ Remote Zero

11

Remote

Zero

10

+ Remote Span

12

Remote

Span

40

Cal

Contact

41

Cal

Contact

Remote Calibration Protocol: To properly time the Digital Remote
Cal Inputs to the Model 3010MA Analyzer, the customer's controller
must monitor the Cal Relay Contact.