Datex-Ohmeda F-LM1, Technical Reference Manual

Page: 218 / 377

Datex-Ohmeda S/5 Light Monitor
2.3 Adjustments and calibrations
2.3.1 CO
2
calibration check
Welch Allyn recommends that the CO
2
sensor should be checked at least once annually to ensure
its accuracy.
Equipment needed:
•
CO
2
Calibration Check Adapter Kit (P/N 902305)
• Calibration Gas 5.00 % CO
2
(P/N 755580)
•
Patient Airway Adapter.
755534
Obstruct
hole with
the tube
755533
When using Datex-Ohmeda calibration gas regulator note the following:
•
With regulator P/N 755533 remove the tube with Y-piece. Connect the silicone tube (comes
with the adapter) on the nozzle of the regulator.
•
With regulator P/N 755534 slide the silicone tube until it blocks also the little hole on the
nozzle. This will ensure that the CO2 concentration rises high enough in the calibration
check adapter.
To check the mainstream CO
2
sensor
1. Turn the monitor ON.
2. Change the mode of operation to MainSt.
3. Change the CO
2
units of measure to % CO
2
.
4. Fix the mainstream sensor to the patient airway adapter.
5. Let the CO
2
sensor warm up for 15 minutes.
6. At the end of the 15-minute warm-up period, observe the reading of
CO
2
in %. The CO
2
reading should be between 0.0 % - 0.3 % with well
ventilated room air.
7. Fix the mainstream sensor to the CO
2
calibration airway adapter.
8. Feed 5.00 % CO
2
gas (e.g. Datex-Ohmeda Quick Cal Calibration Gas, order No. 755580) to
the free end of the silicon tube (included in the kit P/N 902305). Introduce a steady stream
of gas until FiCO
2
and EtCO
2
readings are same and observe the reading.
The CO
2
reading should be 5 %
±
0.3 % for a 5 % gas.
9. If the values do not fall within the acceptable ranges, contact your local GE Healthcare
distributor for further information.
Document No. 8000060-1
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