Dryer Master AM3, Руководство по эксплуатации продукта

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Dryer Master  A M 3 Product Manual
© Dryer Master Inc. Page: 31
2) Enhanced method:
The enhanced method takes the guess work out of doing calibrations. With this method there
is usually a Calibration Start push button located near the Dryer Master Moisture sensor where
manual samples are taken. When this button is pressed a lamp will flash for the next 30
seconds. While this lamp is flashing a small sample of product is taken every few seconds and
put into a sample container. When the lamp stops flashing and the light remains on solid the
Dryer Master Moisture sensor has completed its calibration test. This composite sample should
now be mixed and tested. It is best to take 3 or more tests from this composite sample and
average them. Enter the result as the “ Manual Sample ” into the Dryer Master Calibration entry
screen. At this point the System will show y ou the “ Online Sample ”. The “ Online sample ” is
average moisture for the 30 seconds the calibration lamp was flashing.
This method has some additional safeguards built in and may require a few samples initially to
bring the sensor in line.
a) By default this method will only make a maximum change of 0.5% moisture. For
example if the “ Online Sample ” was 14.1% and the “ Manual Sample ” was 15.1% or
more the change would be the maximum and the displayed moisture reading would
increase by
0.5% moisture. Thus if the displayed reading is still 14.1% to would
increase to 14.6%. The change is always retroactive to the time the button was pushed.
If the reading is now different the value of the change will still be applied but the
reading may be different.
b) Calibration will many times only change 50% of the difference. For example if the
“ Online Sample ” was 14.1% and the “ Manual Sample ” was 14.8% the change would be
the difference 0.7% times 0.5 or 0.35% the displayed moisture reading would increase
by 0.35% moisture. Thus if the displayed reading is still 14.1% to would increase to
14.45% . Again the change is always retroactive to the time the button was pushed. If
the reading is now different the value of the change will still be applied but the reading
may be different.
c) There are additional tests performed such as are the readings valid, Sensor empty or
above or below the threshold signal.
d) See the Engineering parameters for setting the maximum change.