Hioki 3522-50, Инструкция по эксплуатации

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4.14 Setting and Activating the Comparator
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NOTE
Lower-limit
comparison value
Percentage set value
= Reference value + |Reference value|
x
________________
100
NOTE
5. The lower limit value is set in a manner identical to the upper limit value,
mutatis mutandis.
The setting can be made in the range : -999.99% to +999.99%
The actual internal operation consists of calculating the lower-limit value of
comparison using the equation given below, and comparing it to the
measurement value to enable a decision to be made.
If a value smaller than the reference value is to be set, the percentage set
value must be an absolute value.
| |: Denotes an absolute value
If the value is lower than the reference value, a minus sign is necessary.
6. When the setting for the upper or lower limit value has been established as
above, press the key on the Condition setting screen to return to the
Comparator screen.
The comparator decisions are made in the following order:
1) If the measured value is "OVER FLOW", HI is displayed, and the value is
"UNDER FLOW", LO is displayed.
2) Is the measured value greater than the lower limit value or not?
If not (NG decision result), then LO is displayed.
3) Is the measured value lower than the upper limit value or not?
If not (NG decision result), then HI is displayed.
4) If both 2) and 3) give an affirmative result, then IN is displayed.
No test is performed in order to ensure that the upper limit value is greater
than the lower limit value. Therefore no error message will be displayed
even if you mistakenly interchange the settings for the desired upper limit
value and the desired lower limit value. However, be careful that the
decision process will not operate properly.