Dräger X-am 5000 Serie Instrucciones De Uso página 43

1. Prepare a test gas cylinder, the volume flow must be 0.5 L/min and the gas
concentration must be higher than the alarm threshold concentration that is
to be tested.
2. Connect the test gas cylinder with the calibration cradle (order no. 83 18 752).
!
CAUTION
Health hazard! Never inhale the test gas.
Observe the hazard warnings of the relevant Safety Data Sheets.
! WARNING
CSA requirement: carry out a bump test before use. It should be carried out in
the measuring range 25 - 50 % of the full scale value, whereby the displayed
measured value may deviate from the actual measured value by 0 - 20 %.
Accuracy may be corrected via calibration.
3. Switch on the instrument and insert it into the calibration cradle – press
downwards until it engages.
4. Open the test gas cylinder valve to let test gas flow over the sensors.
5. Wait until the instrument displays the test gas concentration with sufficient
tolerance –
Ex: ±20 % of the test gas concentration
O : ±0.6 vol.%
2
TOX: ±20 %. of the test gas concentration
If the alarm thresholds are exceeded, the instrument displays the gas
concentration in alternation with » A1 « or » A2 « depending on the test gas
concentration.
6. Close the test gas cylinder valve and remove the instrument from the
calibration cradle.
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
information in the table in the enclosed supplementary documentation
(order no. 90 33 890) until 90 % of the end display is reached.
1) During application of the Dräger mixed gas (order no. 68 11 130) the displays should be
within this range.
1)
1)
1)
Operation en
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