Thermo Scientific 49i Instruction Manual page 180

Troubleshooting
Connector Pin Descriptions
6-18 Model 49i Instruction Manual
Table 6-7. Measurement Interface Board Connector Pin Descriptions, continued
Connector Reference
Label Designator
DATA J4
PRES J12
FLOW B J8
OZONATOR J5
CHA J9
CHB J10
Pin Signal
Description
4 +24V
5 Ground
6 Ground
7 Ground
8 Ground
1 Ground
2 +RS485 from Motherboard
3 -RS485 from Motherboard
1 Pressure Sensor Input
2 Ground
3 +15V
4 -15V
1 Sample Flow B Sensor Input
2 Ground
3 +15V
4 -15V
5 Ground
1 Ozonator Lamp Intensity Control
Voltage Output
2 Ozonator Lamp Intensity Control
Voltage Input
3 Ozonator Heater Thermistor
4 +24V
5 Ground
6 Ozonator Lamp On/off Control
7 Ground
8 Ground
1 +15V
2 -15V
3 Ground
4 Measurement Frequency A
1 +15V
2 -15V
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