Teledyne 4020 Operating & Maintenance Manual page 42

Installation
pin # Description
9 Background Gas Select +
10 Remote Span +
11 Background Gas Select -
12 Remote Span -
13 Network +
14 Remote Thermistor
15 Zero Solenoid Return
16 Span Solenoid Return
17 Span Solenoid Hot
18 Range 3 Contact
19 Range 3 Contact
20 Alarm 3 C Contact
21 Range 1 Contact
22 Range 2 Contact
23 - Range ID 0-1 v
24 + Output 0-1 v
25
26
27
28 Alarm 1 C Contact
29 Network -
30 Remote Sensor +
31 Remote Thermistor
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 Calibration Contact
41 Calibration Contact
42 Background Gas O2 Contact
43 Background Gas N2 Contact
44 Background Gas C Contact
45 Alarm 1 NC Contact
46 Alarm 1 NO Contact
47 Remote Sensor -
48 Exhaust Solenoid Return
49 Zero Solenoid Hot
50 Sample Solenoid Return
Teledyne Analytical Instruments
Model 4020
24