Teledyne 6000B Operating Instructions Manual page 23

Photometric Analyzer
1) Test the CRC. When the CRC is open, Send a zero command
2) When the CRC closes, remove the zero command.
3) When CRC opens again, send a span command until the CRC
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 connector (paragraph 3.3) 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 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.
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.
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 2-3.
until the CRC closes (The CRC will quickly close.)
closes. (The CRC will quickly close.)
Table 2-3: RS-232 Signals
RS-232 Sig RS-232 Pin Purpose
DCD
RD
TD
DTR
COM
DSR
RTS
CTS
RI
Teledyne Analytical Instruments
Part I: Control Unit
1 Data Carrier Detect
2 Received Data
3 Transmitted Data
4 Data Terminal Ready
5 Common
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator
Part I: 2-9