sewerin VARIOTEC 480 EX - Testing Indication Accuracy with Supply of Test Gas

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5 Maintenance
If the Status: OK message does not appear within a reasonable
amount of time, the air inow does not correspond to the limit
values stored in the device (see Section 7.3). Move the device
to another location 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 specied in the device must be tested. The number
of specied 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)
Information on test gases for the device inspection can be found
in Section 5.1.1.6.
● Test set for the supply of test gas (e.g. SPE VOL)
Note:
Details of how to use the test set can be found in the accompa-
nying operating instructions.
The procedure for testing with a gas mixture and individual gas
is the same.
The device inspection has been opened.
1. On the Dev. Test … menu, select the menu item to be tested
(e.g. Gas mixture, Test gas C3H8, etc.).
2. Check whether the test gas concentration specied by the
device matches the test gas you intend to use. To do this
press Information.