SiUS371901E
Check
Service Diagnosis
388
4.9
Pressure Sensor Check
Voltage Measurement Point of the High Pressure Sensor
Voltage Measurement Point of the Low Pressure Sensor
CHECK 12
High Pressure (P
H
)
Low Pressure (P
L
)
Output Voltage V
H
, V
L
Detected Pressure
40.8
35.7
30.6
25.5
20.4
15.3
10.2
5.1
–5.1
–72.5
0
45.9
51.0 5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
(VDC)
(kg/cm
2
)
(psi)
(MPa)
P
H
, P
L
P
H
(MPa) = × V
H
– × 0.5
P
L
(MPa) = × V
L
– × 0.5
P
H
: High pressure (MPa)
P
L
: Low pressure (MPa)
V
H
: Output Voltage (High Side) (VDC)
V
L
: Output Voltage (Low Side) (VDC)
4.15
3.0
4.15
3.0
1.7
3.0
1.7
3.0
1 MPa = 145 psi
725
653
580
508
435
363
290
218
145
72.5
0
+5 V
(4)
(3)
(2)
(1)
Red
Black
White
X32A
High
pressure
sensor
Microcomputer
A/D input
Make measurement of DC
voltage between these wires.
+5 V
(4)
(3)
(2)
(1)
Microcomputer
A/D input
Make measurement of DC voltage between these wires.
X31A
Red
Black
White
Low
pressure
sensor
Summary of Contents for REYQ-XA
Page 1: ...Service Manual SiUS371901E REYQ72 456XATJU REYQ72 456XAYDU REYQ72 432XAYCU Heat Recovery 60 Hz...
Page 415: ...SiUS371901E Wiring Diagrams Appendix 402 REYQ144 168XATJU 2D119206A...
Page 416: ...Wiring Diagrams SiUS371901E 403 Appendix REYQ72 96 120XAYDU 2D119207B...
Page 417: ...SiUS371901E Wiring Diagrams Appendix 404 REYQ144 168XAYDU 2D119208B...
Page 418: ...Wiring Diagrams SiUS371901E 405 Appendix REYQ72 96 120 144 168XAYCU 2D119209A...
Page 421: ...SiUS371901E Wiring Diagrams Appendix 408 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 423: ...SiUS371901E Wiring Diagrams Appendix 410 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 425: ...SiUS371901E Wiring Diagrams Appendix 412 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Page 426: ...Wiring Diagrams SiUS371901E 413 Appendix FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Page 428: ...Wiring Diagrams SiUS371901E 415 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 429: ...SiUS371901E Wiring Diagrams Appendix 416 FXAQ07 09 12 18 24PVJU C 3D075354D...
Page 435: ...SiUS371901E Wiring Diagrams Appendix 422 VAM1200GVJU 3D073270D...
Page 437: ...SiUS371901E Wiring Diagrams Appendix 424 1 4 2 Multi Branch Selector Unit BS4Q54TVJ 3D089123B...
Page 438: ...Wiring Diagrams SiUS371901E 425 Appendix BS6 8Q54TVJ 2D089122B...
Page 439: ...SiUS371901E Wiring Diagrams Appendix 426 BS10 12Q54TVJ 2D089121B...
Page 440: ...Revision History Month Year Version Revised contents 04 2019 SiUS371901E First edition...
