Checking the white light source
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11 Checking the white light source
A calibration filter is supplied to check the DustMon RD 100. This is used to calibrate and check
the system.
The DustMon RD 100 system must be switched on in order to carry out such an inspection.
Ensure that both the tube and the sample box are clean. A measurement time of 30 seconds is
sufficient.
Pull the sample collection receptacle on the DustMon RD 100 out and place a lens (glass) in
front of the opening using the mechanism at the back on the left.
Pull the sample collection receptacle up to the front edge of the DustMon RD 100.
Start the measurement and wait for the "zero measurement".
As soon as the "Zero measurement/AutoZero" has taken place, the flap in the tube audibly
opens and closes.
Once this has occurred you can gently slide the sample collection receptacle as far as it
will go into the DustMon RD 100.
A constant value now appears on the display
The data are displayed at the end of the measurement. Attention should be paid to the
end value (= 30 seconds); this should be 47.1 +/- 0.3 %.
Fig. 39:
Sample collection receptacle with inserted calibration filter
Fig. 40:
Calibration filter: the lens with specified tint must reflect the value (end value) +/- 3%
