Hitachi AJ-CE series Operation Manual page 22

High-precision tuning fork electronic balance
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4
Changing the sampling number, if necessary.
How to change the value
m
/ n n
I U
U
3D
If samples to be counted widely deviate
in weight, or a higher measure of
accuracy is desired, it is recommended
that users change the sampling number
to a larger value.
Press the | Zero/Tare~| key.
Each press of the key changes the value
on the right end. Select the desired value.
If the sampling number need not be
changed, go on to the next step.
5
Loading samples
M
\ I /
N
I
on
30
Load the number of samples displayed.
Count the samples precisely and load
them in the center of the measurement
pan.
6
Saving the unit weight of samples
Pos
3D
Press the | Memory~| key.
The balance saves the unit weight and
reverts to measurement mode.
it Key Points of the Procedure ^
1.
While the samples are being saved, the value indication disappears and only [M] flashes to
indicate that memory saving is underway.
If the balance is affected by wind or other vibrations
during this process, the saving time may be prolonged.
2.
If [<L - E r r ] appears, it indicates one of the following states:
(1)
The weight of one sample (measurable unit weight) is insufficient.
For the range of unit weights that can be measured and saved, please refer to "13.
Specifications," on page 41.
(2)
In the sampling of Operation Step 3, press the | Set [ key with the samples loaded on the
balance.
S*; If [L -Err]
appears, the sampling is interrupted and the data in progress is not saved.
3.
The operation for increasing counting accuracy is referred to as the Memory Update Method.
This procedure updates the memory with a unit weight that represents a more precise average by
gradually increasing the sampling number.
This operation improves counting accuracy and is recommended for the following cases;
(1)
When the samples to be counted deviate widely in weight or the number of samples
displayed deviates.
(2)
When greater accuracy is desired.
4.
If [R d d] appears in Memory Update Method, it indicates that a counting error is likely due to the
small number of the samples loaded on the balance.
[M] will light up at the judgment indication
"LO." As the memory update continues, counting accuracy improves and the above indication
disappears.
5.
If you change the sampling number, subsequent sampling will start from the new sampling number.
18

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