page 6 Version 2.4_en
Checking the calibration
We recommend to check the calibration of the humimeter LM6
every 4 weeks, using the proof plate delivered with the device. For
this check the device has to show a temperature between 20.0 and
26.0°C.
Switch on the instrument and select the
calibration curve „reference“ using the
arrow keys. Hold the humimeter LM6 in one
hand and press it onto the grey proof plate
(compacting pressure of 4.0kg).
The shown measuring value should range
between 14.5 and 15.5. If the shown value
is out of this range, you have to carry out a
calibration (see instructions below)
Calibration
If the deviation revealed in the calibration
check is out of tolerance, it can be corrected
as follows:
Press the left key twice to reach the menu
level. Navigate to the menu item „Options“
using the arrow keys. Confirm by pressing
the button.
Select the menu item „Calibrate“ using the
arrow keys and confirm by pressing the
key.
The request “Reinitialize?” will appear at
the display.
Hold the humimeter LM6 in one hand and
make sure that nothing stands behind the
measuring field (black plate). Now press the
second button ( ) with one finger.
The calibration procedure will take a few
seconds. During that time, the instrument
has to be held up in the air and the measur-
ing field must NOT be touched.
The device is ready when the shown picture
on the right disappears automatically.
