DRAMINSKI Twist Grain pro Manual De Uso página 19

– Before you start the measurements, it is necessary
to check if the measuring chamber is clean and dry
It is important to remember to remove the grain from
the chamber as soon as the measurement is finished
– Fill the measuring chamber with the grain to the edge
and then twist the tightening cap until you hear a sound
signal It is forbidden to add the grain after the sample
has been pressed In the case of some species (for exam-
ple, grass seeds) which have an increased humidity, the
cap may not produce the sound signal and in such a case
it should be twisted to the end in order to perform the
measurement (do not add any grain to the chamber)
– If the sound signal of the tightening cap is too weak, it is
necessary to untwist the cap and replace the battery to
a new one It is forbidden to bend the plates which cause
that the buzz produces a signal
– During the measurements residual grain may penetrate
to the screw of the cap In order to make twisting the cap
easier, you should regularly clean the screw, do not use
18 CHAPTER 5 | NOTES FOR MEASUREMENTS
any sharp tools for that purpose
– Please, remember to clean the chamber carefully so that
not to damage the temperature sensor which is located
at the bottom of the measuring chamber
– The water which is cumulated on the surface of the
sample (for example, dew) can have an influence on the
measurement results, that is why it is necessary to avoid
those situations and before the measurement you need
to "air" the sample
– It is necessary to remember that the device has an
automatic temperature compensation That is why pay
attention to the temperature of the measuring cham-
ber, it should be similar to the temperature of the tested
sample (the cold sample should not be tested in the de-
vice which has been exposed to the sun, and vice versa)
– The final result must be calculated from three meas-
urements for the given sample (the average is calcu-
lated and displayed automatically) The number of meas-