Characteristics Of Sensors; Pressure Sensor - Fujitsu Airstage J-II Service Manual

5-3 CHARACTERISTICS OF SENSORS

5-3-1 Pressure senser
1. Discharge Pressure Sensor - Pressure Sensor (HIGH): CN118 -
4.5
0.5
0
Pressure [MPa]
Pressure
0.00 0.10
(MPa)
Output
0.50 0.58
(V)
Pressure
2.20 2.40
(MPa)
Output
2.26 2.42
(V)
2. Suction Pressure Sensor - Pressure Sensor (Low): CN119 -
3.5
0.5
0
Pressure [MPa]
Pressure
0.00 0.10
(MPa)
Output
0.50 0.68
(V)
With the connector connected to the PCB, measure the voltage
between CN118 : 2-3 of the Main PCB.
5.00
0.20 0.30 0.40 0.50
0.66 0.74 0.82 0.90
2.60 2.80 3.00 3.20
2.58 2.74 2.90 3.06
With the connector connected to the PCB, measure the voltage
between CN119 : 2-3 of the Main PCB.
1.70
0.20 0.30 0.40 0.50
0.85 1.03 1.21 1.38
DC
0.70 0.80 0.90 1.00
1.06 1.14 1.22 1.30
3.40 3.60 3.80 4.00
3.22 3.38 3.54 3.70
DC
0.70 0.80 0.90 1.00
1.74 1.91 2.09 2.27
05-19
1.20 1.40 1.60 1.80
1.46 1.62 1.78 1.94
4.20 4.40 4.60 4.80
3.86 4.02 4.18 4.34
1.10 1.20 1.30 1.40
2.44 2.62 2.79 2.97
2.00
2.10
5.00
4.50
1.50 1.60 1.70
3.15 3.32 3.50