Kett AN-820, Руководство по эксплуатации

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<Appendix >Guidelines for using AN-820 with Maximum Accuracy
1. Preface
In order to keep the minor changes’ effects on the measurement to a minimum, please be sure
to carry out the standard check based on the standard sample at times again when, for example,
the multiple people take the measurements or there is a power failure during the measurements
or when you believe the results to be doubtful or in accurate.
2. Check for standard sample
(1) Standard sample
As a standard sample, short brown and milled rice are included.
(2) Standard value
Before supplying standard samples, the composition values of standard samples have
been recorded were tested at company to confirm the values and then decided upon.
(3) Storage condition of Standard Sample
Standard samples should be stored in cool, dark area like a refrigerator at between
5
℃ ~10 ℃ . The sample we have supplied has a usable priod, but this presupport its
being stored in cold storage are. It is possible that storing the date in an warm or room
temperature area will cause the standard value changes so please be sure to store it in
cool, dark area. Also, be aware of the mentioned valid period of time concerning the life of
the standard sample, and try to use extremely new grain as the standard sample.
Note : Don’ t freeze standarad sample and put them in freezing-cold strage are like a freezer.
(4) Measure the standard sample
More than half a day before performing the measurements, take standard sample out
of the cold, dark area and put it in the same environment as AN-820. After the sample
returns to normal temperature, perform measurements. Measure the standard sample 3
or 5 times, find th average values for each composition, and then compensation of each.
For example, in case of moisture as follows.
Here, the difference is 0.2%, so if it is in th normal use mode, there is no need to run the
bias adjustment. If the difference exceeds 0.2%, however, perform the comparrison again
with the same formula. If after doing that the result are again exceeding 0.2%, perform a
bias adjustment. Refere to “6-4 BIAS Adjustment” on P16.
To the best of our abiliies, we have deemed the limit values printed above to be sandard.
Selectable limit values that you will perform fixed bais adjustments on depending on the
type of room in which you are using it.h
Standard AV. measurement Difference
Standard sample 16.0% 16.2% 0.2%
Composition Difference of limit (if value exceeds this, perform BIAS)
Protein 0.3%
Moisture 0.2%
Amylose (Ref) 1.0%