30
Maintenance
Menu implementation with the docu-
men-tation of results in the device
memory
The "Quick bump test" or the "Extended
bump test" is selected using the Dräger CC
Vision PC software. The "Quick bump test"
checks whether the gas concentration has
exceeded the Alarm 1 threshold (with oxy-
gen, the check is whether the concentration
has fallen below the Alarm 1 threshold). The
"Extended bump test" checks whether the
gas concentration has exceeded the Alarm 1
threshold (with oxygen, the check is whether
the concentration has fallen below the Alarm
1 threshold) and whether the gas concentra-
tion has reached the preset bump test con-
centration.
Setting on delivery: Quick bump test.
● Prepare a test gas cylinder, the volume
flow must be 0.5 L/min and the gas con-
centration must be higher than the alarm
setpoint concentration to be tested.
Example test gas cylinder 68 11 130 =
mixed gas with 50 ppm CO, 15 ppm H
2
S,
2.5 vol. % CH
4
, 18 vol. % O
2
● Connect the test gas cylinder with the ca-
libration cradle (83 18 752).
● Vent the test gas into a fume cupboard or
into the open air (with a hose connected
to the second connector of the calibration
cradle).
●
● Switch on the device and insert it into the
calibration cradle – press downwards un-
til it engages.
● Call the quick menu and select the func-
tion test with gas (bump test), page 15.
CAUTION
Do not inhale the test gas. Risk to health!
Observe the hazard warnings of the rele-
vant Safety Data Sheets.
00523854_01_en.eps
0.5 L/min
0
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