Troubleshooting
Connector Pin Descriptions
Thermo Electron Corporation Model 42i Low Source Instruction Manual 6-15
2AC-NEUT
3 AC-Ground
FAN 1 PJ4 1 +24V
2 Ground
FAN 2 PJ5 1 +24V
2 Ground
AC IN PJ6 1 AC-HOT
2AC-NEUT
3 AC-Ground
COOLER PJ7 1 Cooler Thermistor
2 Ground
3 +15V_PWR
4 Cooler On/Off Control
AC TEMP PJ8 1 AC-HOT
2AC-NEUT
3 AC-Ground
NO/NOX SOL. PJ9 1 +24V
2 NO/NOX Solenoid Control
SAMPLE SOL. PJ10 1 +24V
2 Sample Solenoid Control
Z/S SOL. PJ11 1 +24V
2 Zero/Span Solenoid Control
SPARE1 SOL. PJ12 1 +24V
2 Spare 1 Solenoid Control
SPARE2 SOL. PJ13 1 +24V
2 Spare 2 Solenoid Control
PERM OVEN
THERM
POJ1 1 Perm Oven Gas Thermistor
2 Ground
PERM OVEN POJ3 1 Perm Oven Heater On/Off
2 +15V_PWR
3 Perm Oven Thermistor
4 Ground
Table 6-4. Measurement Interface Board Connector Pin Descriptions, continued
Connector
Label
Reference
Designator
Pin Signal
Description
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