Hitachi AJ-CE series Operation Manual page 34

High-precision tuning fork electronic balance
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5
End of calibration of weighing capacity point
CAL
CRLoFF
Display switches to [l_ R L o h h ] to
indicate that adjustment of the weighing
capacity point is complete.
6
End of span adjustment
CAL
b u 5 b'
E n d.
Return the calibration knob back to the
[For Use] position. To do so, slowly
turn the knob until the internal
mechanism engages with a click.
The balance now assumes the state
where the calibration weight is removed
from the measurement pan.
[b u 5 b'] -> [E n d] is displayed and
measurement mode restored.
it Some Useful Tips for Operation it
1.
2.
3.
4.
Pressing the | Set | key in Step 2 cancels span adjustment and restores the original
measurement mode.
Do not attempt to forcibly turn the calibration knob or stop it halfway during the stroke. Turn it
slowly and steadily.
For the [Calibration] position, turn the knob until it contacts the end of the stroke.
For the [For Use] position, turn the knob until the internal mechanism engages with a click.
The calibration knob is normally used in the [For Use] position. Note that [C Fl L.a F F] will be
displayed when power is turned on with the knob in the [Calibration] position or when set to the
[Calibration] position during measurement.
Wind or vibration affecting the balance may result in the process not proceeding beyond the
flashing display of [0 Ft L. D].
Always use windscreen and stable, vibration-free bench.
5.
Should the balance display [3 - E r r] at the end of zero-point adjustment in Step 2, this means
that the zero-point is substantially different from that of the factory setting.
(Example) Calibration is initiated with something loaded on the measurement pan.
6.
Should the balance display [S' - £ r r ] when the calibration knob is returned to [For Use] at the
end of span adjustment, this means that the weighing capacity point is substantially different from
that of the factory setting.
(Example) Some object was inadvertently loaded on the balance during weighing capacity point
adjustment.
£Kf the error described in Items 5 or 6 above is displayed, span adjustment need not be done.
Simply repeat the same span adjustment after removing the object from the measurement pan.
If the same error still appears after you repeat adjustment as described above, please contact our
Marketing Division or Technical Service Division.
30

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