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CALIBRATION INSTRUCTIONS
PV 101+/PV 102+ Service Manual
4–2
BREAS MEDICAL
Doc. No. 003259 En
Issue: X-1
4.3
Calibrating the pressure sensor
1
Start the PV 101+/PV 102+ device by pressing the I/O button and the
+
button at
the same time.
2
Remove the casing (see section 3.2). Keep the CPU board connected to the MDA
board.
3
Use the voltmeter to measure the voltage on pin 9 on the analogue/digital output
connector on the rear panel of the PV 101+/PV 102+.
4
Adjust the screw on the P203 (Offset) potentiometer on the MDA board until the
voltage is 1V.
5
Connect the pressure gauge to the syringe and the y-piece tube. Remove the
black tube from the pressure sensor on the MDA board. Connect the free end of
the y-piece tube to the pressure sensor.
6
Use the syringe to create a pressure of 30 mbar ±0.5 mbar.
7
Adjust the screw on the P204 (Gain) potentiometer on the MDA board until the
voltage is 4
V.
8
Remove the y-piece tube from the MDA board’s pressure sensor and reconnect
the black tube.
9
Repeat step 4 to 8 until no further adjustment is necessary.
10
Remove the equipment. Continue with the pressure verification procedure (see
section 4.4).
P203
P204
Pressure
sensor
P203 Offset
+
_
P204 Gain
+
_
MDA board
Summary of Contents for PV 101+
Page 76: ...FAULT TRACING PV 101 PV 102 Service Manual 8 2 BREAS MEDICAL Doc No 003259 En Issue X 1...
Page 78: ...9 2 BREAS MEDICAL Doc No 003259 En Issue X 1 APPENDICES PV 101 PV 102 Service Manual...
Page 82: ...9 6 BREAS MEDICAL Doc No 003259 En Issue X 1 APPENDICES PV 101 PV 102 Service Manual...
Page 87: ...BREAS MEDICAL 10 PV 101 OPERATING MANUAL...
Page 88: ...BREAS MEDICAL...
Page 89: ...BREAS MEDICAL 11 PV 102 OPERATING MANUAL...
Page 90: ...BREAS MEDICAL...