Bump Test With Documentation Of Results In The Instrument Memory; Calibrating The Gas Detector - Dräger X-am 5100 Cyanogen Gebrauchsanweisung

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Maintenance
5.3.2 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",
page 20).
 The current gas concentration values and the special symbol
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 current gas concentration and OK are alternating on the display.
 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.
● If the set bump test concentration is not reached after a sensor-specific
time interval, an instrument error is generated.
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5.4

Calibrating the gas detector

WARNING
Incorrect measured values!
An incorrect calibration may prevent alarms from triggering, or alarms may
trigger late.
► Do not close the outlet of the calibration adapter / exhaust gas hose.
► Always carry out the fresh air / zero calibration before the span calibration.
● Adjustment may not be possible due to instrument and channel errors.
5.4.1 Performing a fresh air calibration
The zero point of the sensor is set to 0 during the fresh air calibration.
Prerequisites
– Calibrate the instrument to fresh air, free of measured gases or other
interfering gases.
(for
1. Switch on the instrument.
2. Press the -key 3 times; the symbol for fresh air calibration
3. Press the -key to start the fresh air calibration.
OK
 The measured values flash.
4. When the measured values have stabilized:
Press the -key to carry out the calibration.
OK
 The current gas concentration and OK are alternating on the display.
5. Press the -key to exit the calibration or wait for approx. 5 seconds.
OK
6. If a fault has occurred during the fresh air calibration:
The fault message
following is displayed for the respective sensor:
a. Repeat the fresh air calibration.
b. If necessary replace the sensor; see the technical manual.
Instructions for use
appears and instead of the measured value, the
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X-am 5100 Cyanogen
appears.