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Troubleshooting
Connector Pin Descriptions
6-14
Model 42i Trace Level Instruction Manual
Connector
Reference
Label
Designator
AMB TEMP
MJ9
HVPS
MJ10
FLOW SW
MJ14
FLOW
MJ15
TEMP CTRL
MJ17
OZONATOR
OJ1
24V IN
P1
PROV INPUT
P2
Pin
Signal Description
8
SPI Output
9
SPI Clock
10
SPI Board Select
1
Ambient Temperature Thermistor
2
Ground
1
HV Power Supply Voltage Adjust
2
Ground
3
HV Power Supply On/Off
4
Ground
5
HV Power Supply Voltage Monitor
6
Ground
7
Ground
1
NC
2
Ground
3
Ozonator Flow OK Switch
1
Flow Sensor Input
2
Ground
3
+15V
4
-15V
5
Ground
1
Bench Temperature Input
2
Ground
3
-15V
4
Converter Heater On/Off
5
Converter Temperature Input
6
+15V_PWR
1
Ozonator Output A
2
Ozonator Output B
1
+24V
2
Ground
1
Spare Voltage Input
2
Ground
3
Ground
4
Ground
Thermo Fisher Scientific
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