User manual humimeter PMZ
Page 38
11. Faults
If the following actions do not eliminate the faults or if other faults not listed here ap-
pear, please contact Schaller Messtechnik GmbH.
Fault
Cause
Remedy
Measuring error
Material temperature outside
the application range: Material
below 0 °C or above +50 °C
The temperature of the
material being measured-
has to be between 0 °C
and +50 °C.
Temperature difference be-
tween material to be measured
and measuring device
Let the temperature of the
measuring device adjust to
that of the pulp (a maxi-
mum difference of 3 °C is
permissible).
Wrong product type
Before starting a measure-
ment, check if the correct
curve (product) is set (see
"6.1 Selecting the product
type"
).
Material is not thick enough
Ensure that the material
has a minimum thickness
of 30 cm on the top and
bottom of the electrodes.
Incorrect contact pressure
Increase or decrease the
material weight on the
electrodes by changing the
insertion position in order
to achieve a contact pres-
sure of approx. 250kg/m²
(2.45kN/m²).
Metals or similar conductive
materials within the measur-
ing field
Remove metals or similar
conductive materials from
the measuring field.
Dirty electrodes
Clean the sensor surface
(see
"10.4 Cleaning the
device"
).
Summary of Contents for humimeter PMZ
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