Dräger X-am 5000 Gebrauchsanweisung Seite 25

To check the measured value response times, apply t90 test gas to the X-am
via the calibration cradle. Check the results in accordance with the details in the
table from page 29 until 90 % of the end display is reached.
After the bump test, the display shows a printer icon even if there is no printer
connected to the bump test station.
Adjustment
Adjustment may not be possible due to instrument and channel errors.
Carrying out the fresh air adjustment
Adjust the instrument to fresh air, free of measured gases or other interfering
gases. During the fresh air adjustment the zero point of all sensors (with the
exception of the DrägerSensor XXS O
DrägerSensor XXS O , the display is set to 20.9 vol. % and with DrägerSensor
2
XXS CO to 0.03 vol. %.
2
The fresh air calibration / zero adjustment is not supported by the
DrägerSensor XXS O . A zero-point calibration / adjustment of this sensor
3
can be carried out using the Dräger CC Vision software. A suitable zero gas
free from ozone (e.g. N ) must be used.
2
 Switch on instrument.
 Press the [ + ] key 3 times, the symbol for fresh air adjustment »
 Press the [OK] key to start the fresh-air adjustment function.
– The measured values flash.
NOTICE
NOTICE
and XXS CO ) are set to 0. With the
2 2
NOTICE
« appears.
When the measured values have stabilized:
 Press the [OK] key to perform the calibration.
– The display containing the current gas concentration changes with the
display » OK «.
 Press the [OK] key to exit the adjustment function or wait for approx. 5 seconds.
If a fault has occurred during the fresh air adjustment:
– The fault message » « appears and »
respective sensor instead of the measured value.
 In this case, repeat the fresh air adjustment. If necessary, have the sensor
replaced by qualified personnel.
« is displayed for the
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