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Teledyne Analytical Instruments 24
30
31
32 Exhaust Solenoid Hot
33 Sample Solenoid Hot
34 Range 4 Contact/ not used
35 Range 4 Contact/not used
36 Alarm 3 NC Contact
37 Alarm 3 NO Contact
38 Range 1 Contact
39 Range 2 Contact
40
41
42 Alarm 2 NC Contact
43 Alarm 2 NO Contact
44 Alarm 2 C Contact
45 Alarm 1 NC Contact
46 Alarm 1 NO Contact
47
48 Exhaust Solenoid Return
49
50 Sample Solenoid Return
3.3.4 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. It requires a standard 9-pin D connector.
Input: The input functions using RS-232 that have been implemented
to date are described in Table 3-5.
Table 3-5: Commands via RS-232 Input
Command Description
AS<enter> immediately starts an auto span.
AL<enter> immediately revert to Analyze (THC Phase)
RL<enter> Change to Manual Range LOW
RM<enter> Change to Manual Range MEDIUM
RH<enter> Change to Manual Range HIGH
RA<enter> Change to Manual Range AUTO