During Use - Dräger X-am 5100 Notice D'utilisation

Use
3.4 Bump test with documentation of results in
the instrument memory.
Setting on delivery: Quick bump test (Check whether the gas
concentration has exceeded the A1 alarm threshold. For further
information, see the Dräger X-am 5100 Technical Handbook.)
1. Prepare a test gas source (e.g., cylinder, permeation oven); the
volume flow must be 0.5 L/min and the gas concentration must be
higher than the alarm threshold concentration to be tested.
2. Fit the calibration adapter (68 06 291) to the sensor cap.
3. Connect the test gas source to the calibration adapter.
4. 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).
5. Switch on the instrument.
6. Call up the Quick Menu and select the bump test, see "Quick
Menu" on page 24.
The current gas concentration values and the special symbol

» « (for bump test) flash.
7. Press the key to start the bump test.
OK
8. Open the valve on the test gas source to let test gas flow over the
sensor.
If the gas concentration rises above the A1 alarm threshold, the

corresponding alarm is triggered.
If a gas alarm ("Quick bump test") is triggered or the set bump test

concentration ("Extended bump test") is reached within the
specified time:
The display containing the current gas concentration changes

with the display » OK «.
The bump test that was carried out is documented with the

result and date in the instrument memory.
9. Close the valve on the test gas source.
If the concentration has now fallen below the A1 alarm threshold,

the instrument returns to the measuring mode.
22
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If the set bump test concentration is not reached after a sensor-

specific time interval, an instrument error is generated.
3.5
!
During operation, the measured values for the measured gas

are displayed.
If a measuring range is exceeded or a negative drift occurs, the

following displays are shown instead of the measured value display:
»
»
In the event of an alarm, the corresponding displays, including the

visual, audible and vibration alarms, are activated, see "Identifying
Alarms" on page 23.
i i

During use

CAUTION
To ensure correct measurement operation, the gas inlet
opening on the instrument must not be covered or dirty.
The sensor cap must not be twisted.
« (Too high concentration) or
« (Negative drift).
NOTICE
Special states in which there is no measuring operation
(quick menu, calibration menu, warm-up of sensors, pass-
word input) are indicated by a visual signal (slow flashing of
the alarm LED ).
Dräger X-am 5100