Oil in Water Analyzer | Part I: Control Section | |
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Remote Calibration Protocol: To properly time the Digital Remote Cal Inputs to the Model 6600 Analyzer, the customer's controller must monitor the Cal Relay Contact.
When the contact is OPEN, the analyzer is analyzing, the Remote Cal Inputs are being polled, and a zero or span command can be sent.
When the contact is CLOSED, the analyzer is already calibrating. It will ignore your request to calibrate, and it will not remember that request.
Once a zero or span command is sent, and acknowledged (contact closes), release it. If the command is continued until after the zero or span is complete, the calibration will repeat and the Cal Relay Contact (CRC) will close again.
For example:
1)Test the CRC. When the CRC is open, Send a zero command until the CRC closes (The CRC will quickly close.)
2)When the CRC closes, remove the zero command.
3)When CRC opens again, send a span command until the CRC closes. (The CRC will quickly close.)
4)When the CRC closes, remove the span command.
When CRC opens again, zero and span are done, and the sample is being analyzed.
Note: The Remote Bench terminal strip (section 3.6 Part III) provides signals to ensure that the zero and span gas valves will be controlled synchronously.
Range ID Relays: Four dedicated RANGE ID CONTACT relays . The first four ranges are assigned to relays in ascending
Network I/O: A serial digital input/output for local network protocol. At this printing, this port is not yet functional. It is to be used in future versions of the instrument.
Table
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DCD | 1 | Data Carrier Detect |
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Teledyne Analytical Instruments | Part I: | ||
