60
5 Maintenance
2. Release the gas input again.
After approximately 5 seconds, the error message should
disappear again. Otherwise there is a fault (see section 6
).
5.1.4
Testing indication accuracy with supply of fresh air
The indication accuracy with supply of fresh air test is part of the
device inspection (see section 5.1.1.1
).
The device inspection has been opened.
1. Make sure that only fresh air is being drawn in.
2. Select
Fresh air
from the
Dev. Test ...
menu.
3. Wait until the displayed readings are stable. A
Status: OK
message will appear.
4. Press
OK
to confirm.
Fresh air
OK
will appear on the display.
This concludes the
Fresh air
test.
If the
Status: OK
message does not appear within a reasonable
amount of time, the air inflow does not correspond to the limit
values stored in the device (see section 7.3
). Move the device
somewhere else and repeat the test.
If the
Status: OK
message still does not appear when the test
is repeated, the device must be re-adjusted (see section 5.2
).
5.1.5
Testing indication accuracy with supply of test gas
The indication accuracy with supply of test gas test is part of the
device inspection.
All test gases specified in the device must be tested. The number
of specified test gases depends on the model and the optional
additional equipment.
The following resources are needed for the test:
●
Test gas (e.g. gas mixture
ExTox IR
)
Information on test gases for the device inspection can be found
●
Test set for the supply of test gas (e.g.
SPE VOL
)
