Retsch DustMon RD 100, Руководство пользователя

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Troubleshooting
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9 Troubleshooting
9.1 "Error clean" message on the on-board display
The DustMon RD 100 system is too dirty. Please clean thoroughly but carefully (as described in
the "Cleaning and maintenance" chapter).
You can also clean the measurement chambers and the sample collection receptacle using
gentle compressed air, using a brush to free the light source and detector of any dust clinging to
them.
9.2 White light source OFF
– device is not functional
It is possible to start a measurement
– using both the DustMon RD 100 software from your PC
and directly on the device (
“R” button on the on-board display) – however no measurement will
be conducted.
Please check that all connections have been connected correctly and are not loose.
Check whether the white light source is on (prerequisite: turn the DustMon RD 100 on):

Remove the sample box

The light source is situated inside on the right-hand side. Generally you should be able to
see whether the light source is on, but you can also hold your hand in front of the light
source.
Action:
Please proceed as follows if the check shows that the white light source is not on:

Make sure that the DustMon RD 100 has been switched on

Press button
C
and then button
R
on the on-board display of the DustMon RD 100

The white light source should now be on again; if not, please turn the DustMon RD 100 off
and back on again and repeat the process if necessary.
Fig. 36: Activating the white light source

This error description occurs on DustMon RD 100 systems that are ONLY equipped with
a white light source.
Background: the white light source (LED) can be deactivated by use of a key combination on
the on-board display. This can occur if somebody presses the buttons randomly or when
cleaning the surface while the device is switched on.