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CALIBRATION INSTRUCTIONS
PV 101+/PV 102+ Service Manual
4–4
BREAS MEDICAL
Doc. No. 003259 En
Issue: X-1
4.5
Calibrating the flow sensor
Always calibrate the pressure sensor before you calibrate the flow sensor.
Calibrating the flow sensor first may lead to unreliable results.
1
Start the PV 101+/PV 102+ device by pressing the I/O button.
2
Plug the patient air outlet with a
6 mm flow restrictor nipple.
3
Set both the IPAP and EPAP
pressure to 12 mbar.
4
Remove the casing (see sec-
tion 3.2). Keep the CPU board
connected to the MDA board.
5
Use the voltmeter to measure the voltage on pin 8 on the analogue/digital output
connector on the rear panel of the PV 101+/PV 102+.
6
Adjust the screw on the P201 (Gain) potentiometer on the MDA board until the
voltage is 2.15 V (±0.15 V).
7
Block the air outlet to
completely stop the air flow.
8
Adjust the screw on the P202 (Offset) potentiometer on the MDA board until the
voltage is 0.5 V (±0.05 V).
9
Remove the air flow blockage.
10
Repeat step 6 to 9 until no further adjustment is necessary.
11
Remove the equipment and reassemble the casing.
P201
P202
P201 Gain
+
_
P202 Offset
+
_
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...