Teledyne Analytical Instruments 3020 M, Operating Instructions Manual

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Paramagnetic Oxygen Analyzer Installation
Teledyne Analytical Instruments
31
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 probe connections (paragraph 3.3.9) provides
signals to ensure that the zero and span gas valves will be
controlled synchronously. If you have the
–C Internal valve
option
—which includes additional zero and span gas
inputs
—the 3020M automatically regulates the zero, span
and sample gas flow.
3.3.6 Range ID Relays
There are four dedicated RANGE ID CONTACT relays. The first
three ranges are assigned to relays in ascending order—Low range is
assigned to RANGE 1 ID, Medium range is assigned to RANGE 2 ID,
and High range is assigned to RANGE 3 ID. RANGE 4 ID is reserved
for the Air Cal Range (25%).
3.3.7 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.
3.3.8 RS-232 Port
The digital signal output is a standard RS-232 serial
communications port used to connect the analyzer to a computer,
terminal, or other digital device. The pinouts are listed in Table 3-3.