Model 11-R
GRIMM AEROSOL TECHNIK GmbH & Co.KG Seite 67 von 83
6.1.2 Cleaning the measuring chamber
Turn off the device to clean the measuring chamber.
Open the filter chamber and take out the gravimeter filter.
Use clean, oil-free compressed air to blow out the air intake
on the front of the device with a maximum pressure of 3 bar,
always in the airflow direction (see Figure 7-2). Since the aer-
osol channel goes straight through the measuring chamber,
you must be able to look through it.
If the intake nozzle is plugged, clean it from the filter chamber
side with a wood or plastic rod (do not use harder materials or
the nozzle may be damaged!).
Do not pull anything (such as cloths etc.) through the intake nozzle, nor disas-
semble it!
6.1.3 Housing
The dust monitor is enclosed by a housing that protects it against mechanical impacts and electromag-
netic fields. The membrane keyboard and display must be protected against severe mechanical im-
pacts. A dry cloth should be used to clean the housing, or moist cleaning cloths for IT equipment in case
of tough dirt.
Protect the device against contact with liquids!
Figure 6-2: Cleaning the
measuring chamber
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