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5−3−2.
In case of executing recalibration.
When purchasing the instrument newly, and also executing combined inspection at Minebea, or
executing fine adjustment on zero and span, make calibration with whichever method as
follows:
(1)
Calculation on tare weight only.
(Combined inspection has completed at Minebea and calibration on tare weight only is
required.)
Though calibration has completed, initial load(tare weight) has changed, or combined
inspection has completed at Minebea and calibration on only initial load(tare weight) is
required after installation, make calibration according to the following methods.
1
After setting the load cell with initial load(tare weight) application, execute the calibration.
In this case, after displaying “CCAL” at step 2, press the key only for every step. The
display will change as follows and only the initial load(tare weight) can be calculated.
“CCAL” → “D−XX” → “DISP” → “XXXX” → “SMV” → “X.XXXX” → “ZERO” → “・・・”
→ “T−END” → “0”.
Warning ● Never press the other key except key.
If other than the key is pressed, the value of the calibration of the
span may be changed.
(2)
In case of executing fine adjustment on zero and span.
Make adjustment according to the paragraph 5−2−2.
Warning ● The accuracy obtained by the calibration of this procedure, consists
from combined accuracy with the instrument and combined strain
gage applied transducer, the accuracy of weight used in the
calibration, error factors on mechanical and also error factors on
calibration works, that is total accuracy. If high accuracy is required,
full consideration should be made on each factors. If neglected, there
may be a case that desired accuracy shall not be obtained.
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