Dräger MQG 0020, Инструкция по эксплуатации

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Dräger X-am 5100 25
Calibrating the instrument
1. In measuring mode, press the key three times.

If functions in the quick menu have been activated using the
Dräger CC-Vision PC software, you can select these functions
using the
key. If no functions have been activated in the
quick menu, the instrument remains in measuring mode.
2. You can select the activated functions of the quick menu by
pressing the key.

Press the key to call the selected function.

Press the key to cancel the active function and to switch to
measuring mode.

If no key is pressed for 60 seconds, the instrument reverts
automatically to measuring mode.
5 Calibrating the instrument

Adjustment may not be possible due to instrument and channel
errors.
5.1 Performing a fresh air calibration

Calibrate the instrument to fresh air, free of measured gases or
other interfering gases.

The zero point of the sensor is set to 0 during the fresh air
calibration.
1. Switch on the instrument.
2. Press the
key 3 times; the symbol for fresh air calibration » «
appears.
3. Press the key to start the fresh air calibration.
The measured values flash.

When the measured values have stabilized:
4. Press the key to carry out the calibration.
The display containing the current gas concentration changes with
the display
» OK « .
5. Press the key to exit the calibration or wait for approx.
5 seconds.
If a fault has occurred during the fresh air calibration:

The fault message » « appears and » « is displayed for the
respective sensor instead of the measured value.

Repeat the fresh air calibration.

If necessary replace the sensor; see the Technical Handbook.
5.2 Performing a standard sensitivity calibration
During the sensitivity calibration, the sensitivity of the sensor is set to
the value of the test gas.
1. Fit the calibration adapter (68 06 291) to the sensor cap.
2. Connect the test gas source to the calibration adapter.
3. Vent the test gas into a fume cupboard or into the open air
(with a hose connected to the second connector of the calibration
adapter).
4. Switch on the instrument.
5. Press the
key and keep it pressed for 5 seconds to call the
calibration menu.
WARNING
Always adjust the zero point first, before the sensitivity,
otherwise the adjustment will be incorrect!
OK
!
OK
CAUTION
Never inhale the test gas. Danger to health!

Observe the hazard warnings of the relevant Safety Data
Sheets.
NOTICE
To minimise adsorption effects, keep the length of the hose
as short as possible (maximum hose length: 1 m). Dräger
recommends using PTFE hoses.
OK
OK
!
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