Oxygen Analyzer | Installation |
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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 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 BDS 3960 Analyzer, the customer's controller must monitor the Cal Relay Contact.
Teledyne Analytical Instruments | 37 |