Schaller Messtechnik Humimeter BMA User Manual page 18

Self-calibration - fault correction
exceed a
If the values of the self-calibration
certain limit, the procedure is stopped for
reasons of safety.
For this fault, a pollution of the contacts at the
bottom of the measuring chamber may be
In this case slightly sand the
responsible.
stainless steel contacts (marked in blue on
the picture) using 400 grade abrasive paper.
Afterwards the contacts have to be cleaned
with alcohol.
If after that procedure the self-calibration is still not successful,
please contact Schaller GmbH.
Note: For the self-calibration the measuring chamber has to be
empty and cleaned!
Instructions for transport
If the humimeter BMA is transported or shipped, the measuring
chamber has to be removed from the BMA device.
Otherwise all warranty claims will be rendered invalid.
page 18 version 2.2