Fujitsu Airstage VR-II Series - Page 205

SERVICE PARTS INFORMATION 23
Discharge Pressure Sensor
Suction Pressure Sensor
Check Point : Check Voltage from Main PCB
DC
With the connector connected to the PCB, measure the voltage between CN118:2-3
of the Main PCB.
1. Discharge Pressure Sensor
Characteristics of pressure sensor
4.5
725 / 5.0
0.5
0
Output [V]
Pressure psi / MPa
DC
Check Point : Check Voltage from Main PCB
DC
With the connector connected to the PCB, measure the voltage between CN119:2-3
of the Main PCB.
2. Suction Pressure Sensor
Characteristics of pressure sensor
3.5
246.5 / 1.7
0.5
0
Output [V]
Pressure psi / MPa
DC
11
33
WHITE
PRESSURE
SENSOR
(HIGH)
BLACK
22
RED
PS
11
33
WHITE
PRESSURE
SENSOR
(LOW)
BLACK
22
RED
PS
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
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
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
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
Mpa
Output (V)
1.60 1.70
3.32 3.50
319.0 348.0 377.0 406.0 435.0 464.0 493.0 522.0 551.0 580.0 609.0 638.0 667.0 696.0 725.0
0.0 14.5 29.0 43.5 58.0 72.5 101.5 116.0 130.5 145.0 174.0 203.0 232.0 261.0 290.0
psi
MPa
psi
0.0 14.5 29.0 43.5 58.0 72.5 101.5 116.0 130.5 145.0 159.5 174.0 188.5 203.0 217.5
psi
232.0 246.5
psi
04-116