Breas PV 101+, Service Manual

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Doc. No. 003259 En Issue: X-1 BREAS MEDICAL 4–1
PV 101+/PV 102+ Service Manual CALIBRATION INSTRUCTIONS
4 CALIBRATION INSTRUCTIONS
This chapter describes how to adjust and verify the pressure, flow and high pressure
limit sensors of the PV 101+/PV 102+ device.
4.1 Requirements
• The calibration should be made every 12 months or after 15,000 operating hours.
• Keep the power cord of the PV 101+/PV 102+ connected to the mains power dur-
ing the calibration.
Always use caution when working with the device connected to the mains
and the casing removed.
Always check and adjust the patient settings to the prescribed values after
you have calibrated the PV 101+/PV 102+.
4.2 Equipment
Make sure you have the following equipment to hand:
• Screwdriver for the calibration screws (
∅
1 mm)
Pressure calibration
• Flow restrictor nipple 6 mm, BREAS part number 000997
• Flow restrictor nipple 5 mm, BREAS part number 003311
• Voltmeter
• Syringe with a y-piece tube
• Pressure gauge, 0–70 mbar
Flow calibration
• Flow restrictor 6 mm, BREAS part number 000997
• Voltmeter
High pressure limit calibration
• Flow restrictor nipple 4 mm, BREAS part number 003312
• Fan control unit, BREAS part number 003302
• Pressure gauge, 0–70 mbar