Carrying Out A Single-Gas Calibration - Dräger X-am 2800 Gebrauchsanweisung

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Maintenance
3. Press to start fresh air calibration manually.
OK
 All measurement channels involved in the fresh air calibration flash.
4. If necessary, press
calibration takes place immediately.
Dräger recommends using the automatic stability control (wait until the
gas detector has independently carried out the calibration).
 The new measured value is displayed for control purposes.
The result is displayed as follows:
OK fresh air calibration successful.
fresh air calibration failed.
5. The fresh air calibration is complete when all participating measurement
channels have passed or failed the fresh air calibration.
● Select
● Select
● Select

5.6.3 Carrying out a single-gas calibration

Observe the following instructions for single-gas calibration:
● With a zero-point calibration, the zero-point of the selected sensor is set to
zero.
● In the case of the span calibration, the sensitivity of the selected sensor is
set to the concentration value of the test gas used.
● Use a standard test gas.
Permitted test gas concentration:
CatEx
O
2
The permitted test gas concentration of other gases can be read out of the gas
detector by the Dräger CC Vision PC software. The permitted concentrations
depend on the set parameters (e.g. alarm thresholds).
Dräger recommends selecting a test concentration in the middle of the
respective measuring range or close to the expected measured value.
56
to override the stability check. In this case, a
OK
to confirm the result.
and then confirm the dialogue to discard the result.
to return to the results.
The permitted test gas concentration is
displayed by the gas detector during
single-gas calibration of the sensitivity.
®
X-am 2800