USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 43 / 95
Repeating the zeroing
The zeroing can be repeated at any time as long as the probe is not in-
side the stack. In the main menu you select “Zeroing”, and after the dis-
played message press the OK key.
6.9. Zeroing with the 3-gas-NDIR bench
The zeroing of the 3-gas NDIR bench takes typically 7 to 10 minutes
and maximal 18 minutes. After, this zeroing the measuring values are
not stable for a longer time yet and will be displayed at first orange col-
oured. Nevertheless, a short time measurement is possible, but only the
other (not orange coloured) values are correct according the specifica-
tions.
Aprox. 30 minutes after the first zeroing the analyzer will display every 8
seconds „Zeroing recommended“. After the accomplishment of this sec-
ond zeroing the colour of the displayed measuring values will be switch
from orange to black and the measuring precision of the 3-gas NDIR
bench is now correct.
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