ALTAIR 2X
26
Use
GB
Bump Test
This test quickly confirms that the gas sensors are functioning. Perform a full
calibration periodically to ensure accuracy and immediately if the device fails the
bump test. The bump test can be performed using the procedure below or auto-
matically using the GALAXY GX2 test stand.
Bump Test for Devices without XCell Pulse Technology
(1) Press the button for about 1 sec.
BUMP? is displayed.
(2) Press the button again while BUMP? is displayed.
(3) Feed test gas into the device:
Connect the regulator (screwed on the calibration gas cylinder) and the
sensor opening with a tube and open the regulator.
Possible test gases Section 7.
If gas is detected PASS is displayed.
(4) Close the regulator.
WARNING
Perform a bump test to verify proper device operation. Failure to perform this
test can result in serious personal injury or death.
Bump test frequency is often stipulated by national or corporate regulations;
however, bump testing before each day's use is generally the accepted best
safety practice and is therefore MSA's recommendation.
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