52
│ 6 Maintenance
6.2
Test gases
6.2.1
Utilisable test gases
Both gas mixtures and individual gases can be used for device
inspection and adjustment. With some test gases, particularly
gas mixtures, several gases can be tested or adjusted simulta-
neously.
Test gases are preset in condition at delivery. These SEWERIN
test gases can be used to perform all the required device inspec-
tions and adjustments.
Information about the preset test gases can be found in sec-
tion 9.3.1.
Test gases other than preset test gases can be used provided
they meet the listed specifications. The test gases that are not
preset must be set up by the user by means of the
GasCom
software. The test gas specifications are available on request.
6.2.2
Available test gases
Available test gases can be both preset and set-up test gases.
The test gases available for maintenance are always listed at the
start of an activity. The device also shows which gases can be
tested or adjusted with a test gas.
Fig. 39: Adjustment - selection of the test gas
with list of available test gases (middle) and list of gases to be
adjusted (right). The gases that can be adjusted with a selected
test gas are outlined.
Left image: All gases can be adjusted using the selected test
gas.
Right image: One gas can be adjusted using the selected test
gas.
