User Manual
VARIO
luxx
MRU GmbH, D-74172 Neckarsulm
61 / 129
Controlling Filters
The filters (probe filter and round filter) must be checked before and
after each measurement.
6.2.
Take a measurement
Setting O2 reference
and Fuel type
►
Touch the menu „Measure “
.
The measurement window appears.
►
Touch the „Context menu “
(19).
A selection list appears.
►
Touch „O2ref
/ Fuel type).
A window appears.
►
Adapt the O2 reference to your sample gas.
►
Touch „OK“.
The setting is saved.
Setting CO purge limit
Electrochemical sensors operate within a specified range and may be dam-
aged due to overload. In the application of flue gas, the CO value may cover
a broad range. Therefore, the instrument provides for a protection of the CO
sensor including a switch-off valve and purge pump.
During this protection is active, the CO measurement is only supported by a
high-range CO sensor or the NDIR bench optionally.
►
Touch the menu „Measure “
.
The measurement window appears.
►
Touch the context menu (19).
A selection list appears.
►
Touch „
CO purge limit
“.
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