ALE-NC series operation manual 3
Functions related to the operation
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35
－
3-9
Comparator function
It is possible to preset threshold values (limits) and determine whether or not a measured value is
within the range defined by the preset values.
Refer to “5 Comparator setting” to preset the threshold values.
The comparator function can be used in Weighing mode, Percentage mode, Counting mode, and
Multiplied by Coefficient mode.
3-9-1
How to perform discrimination
Switch to the “Comparator indication” according to “2-3-4 [F] key switching at each measuring mode”.
Whether the measured value of the sample is “LOW” (lower than the lower limit), “OK” (appropriate) or
“HIGH” (higher than the upper limit), is indicated on the LCD with “16-segment messages”.
16-segment messages
Discrimination
Single point setting
(lower limit)
Single point setting
(upper limit)
Two-point setting
(upper and lower limits)
Over the upper limit
<
>
Blinking
<
>
Blinking
<
>
Blinking
Appropriate amount
<
>
Blinking
<
>
Blinking
<
>
Blinking
Below the lower limit
<
>
Blinking
<
>
Blinking
<
>
Blinking
The discrimination is performed according to the following criteria:
- Absolute value: The discrimination is performed based on the upper and lower limit values that have
been set in advance.
- Relative value: A reference numeric value is set in advance, and the discrimination is performed
based on the range defined by the upper and lower limit values that have been set
for the reference numeric value.
（
For example
）
Two-point (upper and lower limits) setting, Reference value =
100.00
g,
Lower limit value =
90.00
g, Upper limit value =
120.00
g
Discrimination
method
Reference value
Lower limit value
Upper limit value
100.00 g
90.00 g
120.00 g
Absolute value
90.00 g
120.00 g
Relative value
100.00 g
-10.00 g
20.00 g
3-9-2
Comparator function setting
Refer to “5 Comparator setting” to preset the threshold values.
The threshold values also can be set by [F1] (<<LOW>>) key, [F2] (<<OK>>) key and
[F3] (<<HIGH>>) key at “Comparator indication” display.
1
Select the comparator function.
Press [Menu] key, then press [F1]-[F4]
keys to go to <131 ACTIVATE>
Press [F4] key to change the setting
value.
Press [F1]/[F2] key to select.
<<OFF>>: OFF
<<H / L>>: Upper and lower limits valid
<<HIGH>>: Upper limit alone valid
<<LOW>>: Lower limit alone valid
Press [F4] key to fix.
