5664.500/800 Evita 4/Evita 2 dura 06/98 Repair Instructions Page 50
For internal use only. Copyright reserved.
GBR5664500T055664800.fm 18.03.99
Dräger Medizintechnik
D
8.2 CO
2
Sensor
The CO
2
sensor can only be repaired in the Lübeck workshop.
The lamp in the CO
2
sensor has an estimated service life of approx. 40,000 hours (about 4
1/2 years of continuous operation). The service life might be reduced if the sensor is
dropped or exposed to strong vibrations.
A span-check filter is located in the CO
2
sensor cable. This span-check filter is specifically
adapted to the relevant CO
2
sensor. If you have to replace it with a new span-check filter, you
must re-adapt the new span-check filter to the CO
2
sensor. Follow these instructions to adapt
the new filter:
• Calibrate the CO
2
sensor with test gas.
• Insert the span-check filter into the cuvette.
• Read out the CO
2
value.
• Attach a new clip to the span-check filter whose value is closest to the measured value.
A set of clips can be ordered separately.
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