Fujitsu Airstage J-II, Service Manual

Page: 191 / 209

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