Dräger X-am 8000 Mode D'emploi page 57

2) Depending on the measuring range and the measuring accu-
racy.
Dräger recommends selecting a test concentration in
the middle of the respective measuring range or close
to the expected measuring range.
To carry out a single-gas calibration:
1. Screw the calibration adapter onto the gas detector.
2. Connect the test gas cylinder to the calibration
adapter.
3. Connect a second hose (max. length: 2 m) to the
second connector on the calibration adapter to direct
the test gas to an exhaust or outside.
4. Switch on the gas detector.
5. Select > Log in.
6. Enter and confirm the password.
7. Select Maintenance > Single gas cal..
 A dialog for selecting the measuring channel to
be calibrated appears.
8. Select the measuring channel.
 A dialog for selecting the calibration appears.
9. Select either zero-point calibration or span
calibration.
● For a span calibration: Enter and confirm the
calibration concentration.
10.Open the valves on the test gas cylinder.
11. Select to start the single-gas calibration or
cancel the calibration.
 The measuring channel appears, and the
measured value flashes.
As soon as the stability check detects a stable
measured value, a calibration is carried out
automatically.
12.If necessary, press
control. In this case, a calibration happens
immediately.
 The new measured value is displayed for
confirmation.
The result is displayed as follows:
single-gas calibration successful.
single-gas calibration failed.
13.The single-gas calibration is complete when
measuring channel successfully passed or failed the
single-gas calibration.
● Select and then confirm the dialog to discard
the result.
● Select to confirm the result.
X-am
to overrule the stability
®
8000
14.Close the valves on the test gas cylinder.
If there was an error during the single-gas calibration:
– Repeat the single-gas calibration.
– Inspect the sealing contours and surfaces on the
calibration adapter as well as the front cradle of the
housing to make sure they are free of damage.
Inspect the thread port for the calibration adapter.
– If necessary, replace the sensor.
For mixed gas and cross calibration, see the technical
manual.
5.6 Charging the battery
WARNING
Risk of explosion!
To reduce the risk of ignition of a flammable or
explosive atmosphere, observe the following:
► Do not open the gas detector in explosion-hazard
areas.
► Only use the LBT 02** (lithium-ion) battery type.
► Do not charge or exchange the battery in explosion-
hazard areas.
► Only use the battery charger specified by Dräger.
The use of a different charger nullifies the explosion
protection certification of the gas detector.
For the replacement of the battery, see the technical
manual.
to
The battery is a part of the lower part of the casing. The
battery can be charged with or without the gas detector.
1. Place the gas detector or only the lower part of the
casing with the battery in the charging cradle.
 The gas detector switches off automatically
(factory setting). The green LED on the power
pack flashes.
The typical charging time after a work shift of 8 – 10 h is
approx. 4 h.
The typical charging time for an empty battery is
approx. 10 h
If the battery is deep-discharged, it may be
necessary to leave the device in the charging cradle for
up to 16 h to charge it.
If the specified temperature range (5 to 35 °C) is not
reached or is exceeded, charging stops automatically.
This extends the charging time. After a return to the
temperature range, charging continues automatically.
Maintenance en