Operating instructions sample cleaner MLN | Revision 3
CAUTION
Hand injuries!
Do not put your hands
• in the working range of the sieve
• from above in the sample cleaner
• through the service openings at the side walls of the sample cleaner.
The deawner bottom will open automatically at the end of the deawning time.
o In order to cut short the deawning, actuate the control switch for manually opening the
deawner bottom.
Switch the control switch OFF if the cleaning process has finished.
A complete cleaning process has ended as soon as grains can no longer be seen on the sieves. Duration
for a 1 kg sample is approximately 60 s.
Check whether the sieves are free after the cleaning process ends. If grains are stuck,
you can remove them by slightly knocking with your fingers.
Weigh the cleaned sample again. This way, you can determine the waste in percent. For this, refer to
the calculation example in chapter 7.3.
7.3 Re-weighing
Calculation example:
The weight of the sample that you are pouring in the filling container is 1,050 g.
The cleaning process is started.
The aspiration is effective when the sample is discharged.
10 g dust and light dirt particles are sucked in.
Straw sieve and sand sieve sort 20 g of dirt particles each, i.e. total 40 g.
The weight of the sample is now 1,050 g - 50 g = 1,000 g.
The waste of 50 g has 4.8% of the sample.
The remaining 1,000 g is the weight of the grains without waste: 1,000 g = 95.2 %!
Result of weighing:
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