Carry Out Manual Bump Test - Dräger X-am 2500 Instrucciones De Uso

To protect the battery charge only in the temperature range of 5 to 35 °C.
Outside this temperature range, the charging process is automatically
interrupted and automatically continued after the temperature range has
been reached again. The charging time is typically 4 hours. A new NiMH
power pack reaches its full capacity after three complete charge /
discharge cycles. Never store the instrument for extended periods without
being connected to a power source (maximum of 2 months) because the
internal buffer battery will drain.
4.9.3

Carry out manual bump test

NOTICE
i i
The automatic bump test with the Bump Test Station is
described in the Technical Handbook.
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).
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.
CAUTION
!
Never inhale the test gas. Health hazard!
Observe the hazard warnings of the relevant Safety Data
Sheets.
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.
Dräger X-am 2500
5. Wait until the instrument displays the test gas concentration with
sufficient tolerance –
Ex: ±20 % of the test gas concentration
1
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.
NOTICE
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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 36 until
90 % of the end display is reached.
NOTICE
i
i
After the bump test (menu), the display shows a printer icon
even if there is no printer connected to the bump test station.
If the displays are outside of the above-mentioned ranges:
Have the instrument adjusted by the service personnel.

1) During application of the Dräger mixed gas (order no. 68 11 130) the displays should be
within this range.
Operation
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