Dräger X-am 5000 Notice D'utilisation page 16

Charging the device with NiMH power pack T4
(83 18 704)
Do not charge underground or in explosion-hazard areas! Danger of explosion!
The chargers are not designed in accordance with the regulations for firedamp
and explosion protection.
Even if the device is not used, we recommend that you store the device in the
charger!
Insert the switched off device into the charger.
– Display LED on the charger:
Charge
Fault
Full
To maintain the lifetime of the batteries, charging is temperature controlled and
only performed in a temperature range of 5 to 35 °C. When this temperature
range is left, the charging 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 load/unload cycles. Never store the device for extended periods
(maximum 2 months) without being connected to a power source, as this drains
the internal buffer battery.
Carrying out a manual the function test with gas
(Bump Test)
Refer to the Technical Handbook for a description of the automatic function test
using the bump test station.
Prepare a test gas cylinder, the volume flow must be 0.5 L/min and the gas
concentration must be higher than the alarm setpoint concentration to be
tested.
Connect the test gas cylinder to the calibration cradle (order no. 83 18 752).
Test gas must not be inhaled. Risk to health!
Observe the hazard warnings of the relevant safety data sheets.
Switch on the device and insert it into the calibration cradle – press down-
wards until it engages.
Open the test gas cylinder valve to let test gas flow over the sensors.
16
WARNING
NOTICE
CAUTION
Wait until the device displays the test gas concentration with sufficient toler-
ance:
1)
Ex: ±20 %
1)
O : ±0.6 vol. %
2
1)
TOX: ±20 %.
– If the alarm setpoints are exceeded, the device displays the gas concentration
in alternation with » A1 « or » A2 « depending on the test gas concentration.
Close the test gas cylinder valve and remove the device from the calibration
cradle.
If the displays are outside of the above-mentioned ranges:
Have the device calibrated by the service personnel.
Calibration
Calibration may not be possible due to device and channel errors.
Carrying out the fresh air calibration
Calibrate the device to fresh air, free of measured gases or other interfering
gases. During the fresh air calibration, the zero point of all the sensors (with the
exception of the DrägerSensor XXS O
DrägerSensor XXS O the display is set to 20.9 vol. % and for the
2
DrägerSensor XXS CO to 0.03 vol. %.
2
Fresh air calibration / zero point adjustment is not supported by the
DrägerSensor XXS O . A zero point calibration / adjustment of these sensors
3
can be conducted using the Dräger CC-Vision PC software. To do so, a
suitable zero gas that is free of ozone (e.g. N
Switch on the device.
Press the [ + ] key 3 times, the symbol for fresh air calibration »
Press the [OK] key to start the fresh air calibration function.
– The measured values flash.
When the measured values are stable:
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 calibration function or wait for approx.
5 seconds.
1) Upon application of the Dräger mixed gas (order no. 68 11 130) the displays should be within
this range.
and XXS CO ) is set to 0. For the
2 2
NOTICE
) should be used.
2
« appears.