Carrying Out The Function Test With Gas (Bump Test); Manual Implementation Without The Documentation Of Results In The Device; Memory - Dräger X-AM 5000 Technical Manual

Maintenance

Carrying Out the Function Test with Gas (Bump Test)

Manual implementation without the documentation of results in the device

memory

•
Prepare a test gas cylinder, the volu-
me flow must be 0.5 L/min and the
gas concentration 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 S, 2.5 vol. % CH
2
• Connect the test gas cylinder with the
calibration cradle (83 18 752).
•
Vent the test gas into a fume cup-
board or into the open air (with a hose
connected to the second connector of
the calibration cradle).
CAUTION
Do not inhale the test gas. Risk to
health! Observe the hazard warnings of
the relevant Safety Data Sheets.
•
Switch on the device and insert it into
the calibration cradle – press down-
wards until it engages.
•
Open the test gas cylinder valve to let test gas flow over the sensors.
• Recommendation: Wait until the device displays the test gas concentration with suf-
ficient tolerance –
Ex: ±20% of the test gas concentration
O : ±0.6 vol. %
2
TOX: ±20% of the test gas concentration
Wait al least until the alarm setpoint A1 or A2 is exceeded.
•
If the alarm setpoints are exceeded, the device displays the gas concentration in al-
ternation with » A1 « or » A2 « depending on the test gas concentration.
•
Close the test gas cylinder valve and remove the device from the calibration cradle
−
If the concentration has now fallen under the A1 alarm setpoint:
•
Acknowledge the alarm.
•
If the displays are outside of the above-mentioned ranges:
•
Calibrating the device, refer to page 37.
1) Upon application of the Dräger mixed gas (order no. 68 11 130) the displays should be within this
range.
32
, 18 vol. % O
4 2
1)
0
1)
1)
.
0.5 L/min