Mitsubishi Electric EHSD-MEE - Page 60

Part Name Checkpoints
Thermistors Disconnect the connector then measure the resistance with a multimeter.
(At ambient temperatures of 10 to 30°C.)
Flow sensor
Pressure sensor
Thermistor Normal Abnormal
TH1
4.3 to 9.5 kΩ Open or short
TH2
THW1
THW2
THW5A
THW5B
THW6
THW7
THW8
THW9
THW10
40 to 100 kΩ Open or short
THWB1
1
2
3
4
BK
WH
BU
BN
SENSOR
5 VDC
Vout
MICRO
PROCESSOR
FTC CONTROLLER BOARD
4-3 : 5 V (DC)
2-3 : Output Vout (DC)
WITHOUT SIGNAL
CN1A WH
Flow signal
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0 20 40 60 80 100
Flow [L/min]
Flow output signal[V]
0.35 V
1
3
4
RD
BK
WH
SENSOR
5 VDC
Vout
MICRO
PROCESSOR
FTC CONTROLLER BOARD
1-3 : 5 V (DC)
4-3 : Output Vout (DC)
CN401 WH
0.5
2.5 5
2.5
4.5
Vout (V)
PRESSURE
(MPa)
1
3
4
RD
BK
WH
SENSOR
5 VDC
Vout
MICRO
PROCESSOR
FTC CONTROLLER BOARD
1-3 : 5 V (DC)
4
-
3
: Output Vout (DC)
CN401 WH
0.5
2.5 5
2.5
4.5
Vout (V)
PRESSURE
(MPa)
60
OCH815A