Penlon AV-S, Service Manual, Page: 58 / 94

PRE-OPERATION PROCEDURES - O
2
Monitor
5.3.2.1 Calibration - Using 100% Oxygen
AV-S ventilator mounted on a Prima SP
anaesthetic machine fitted with a A200SP
absorber
Calibrate with the sensor in position within the absorber.
1. Detach the absorbent canister (1).
2. Remove the breathing circuit hoses from the
inspiratory and expiratory connectors (2) on
the absorber.
This will give a free flow of oxygen through the
sensor.
3. Switch on the ventilator (3) and the
anaesthetic machine gas delivery switch.
The oxygen monitor automatically switches
ON when the ventilator is switched on.
Ensure that all vaporizers are OFF.
4. Apply 100% oxygen only, at 5 L/min, from the
anaesthetic machine flowmeter.
5. Allow the oxygen to flow until the oxygen
monitor readout (4) stabilises.
6. Calibrate the sensor, using the AV-S ventilator
menu procedure, as follows.
7. Press the menu switch (5) and select the O
2
monitor sub-menu.
8. Scroll to CALIBRATION.
If the menu shows 21% (which indicates
calibration using air), press the navigator
wheel / button (6) to switch to 100%
(calibration using oxygen).
9. A message will flash on the screen:
O2 AT 100% ?
Press the button (5) to confirm
NOTE
The message:
OXYGEN SENSOR LOW OUTPUT
will appear on screen if the user attempts to
calibrate at 21% in 100% oxygen.
10. Scroll to ESCAPE FROM MENUS and press
the button (6) to exit.
11. Turn off the flow of oxygen.
12. Refit the canister.
2
1
52
3
5
6
4
%O
2
100
21
20
.
.
IO o
o
O2 Monitor & Spiro
ESCAPE FROM MENU
O2 MONITOR: on
>
CALIBRATION: 100%
HIGH ALARM SET: 105
LOW ALARM SET: 18
SPIROMETER: on
SPIRO CALIBRATION: 0 L/min