
Prima 465 Anaesthetic Machine
81
User Manual
Maintenance
7.4
Anaesthetic gas scavenging system -
Receiver unit
Follow the cleaning and service recommendations detailed in
the AGSS user instruction manual.
7.5
Breathing system sensors
7.5.1 Pressure sensor zeroing
CAUTION
1. Do not calibrate while the unit is connected to a patient.
2. During calibration, do not move or compress the
breathing tubes.
Procedure
1. Stop ventilation.
If a breathing tube is connected, open the breathing tube
patient connection to air.
Check that the bellows falls to the bottom of the canister.
2. Set gas flows to minimum.
3. In standby mode, touch the [System] button (1) ->
[Calibration] button (2) ->[Pressure Sensor Cal] button (3).
Pressure sensor zero calibration will start automatically.
Do not touch the breathing system tubing during
calibration.
CAUTION
If zeroing fails, contact a Penlon-trained engineer.
7.4.2 Flow sensor zeroing
1. Stop manual or mechanical ventilation. If a breathing
tube is connected to the breathing system, then open the
breathing tube patient connection to air.
Check that the bellows falls to the bottom of the canister.
2. Turn off the flowmeter.
3. In standby mode, touch the [System] button (1) ->
[Calibration] button (2) ->[Flow Sensor Cal] button (3).
Flow sensor zero calibration will start automatically.
Do not touch the breathing tubes during calibration.
CAUTION
If zeroing fails, contact a Penlon-trained engineer.
7.5
Flowmeter zero calibration procedure
1. Press the ‘System’ button (1), located in the function fields
2. Select the Calibrations page (2).
DO NOT press the Flowmeter Zero Cal. button.
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Summary of Contents for Prima 465
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