4.1 Comparator Function
55
4
Chapter 4 Applied Measurement
To enter the current measurement as the setting value: AUTO key
Press on a screen other than the upper/lower threshold (reference value/toler-
ance) setting display. This key is used as a numeric key on the upper/lower
threshold (reference value/tolerance) setting display.
The current measurement value is set as the upper or lower threshold (during
upper/lower threshold setting), or as the reference value (during reference
value and tolerance setting). If the measured value is faulty or
± OF, it is
ignored (not entered).
To enter a statistical calculation result as the setting value: STAT key
Press on a screen other than the upper/lower threshold (reference value/toler-
ance) setting display. This key is used as a numeric key on the upper/lower
threshold (reference value/tolerance) setting display.
The result of statistical calculation is set as follows:
Where “
” represents population standard deviation (
n
).
No setting occurs if statistical calculation is disabled and no statistical calcula-
tion result exists.
See "4.5 Statistical Calculation Functions" (p.64).
Setting thresholds from the AUTO and STAT keys is possible only when the
selected (blinking) character is non-numeric.
This section describes how to configure functionality for acquiring the absolute
value of the voltage measured value when judging comparators, allowing a judg-
ment to be made based on the absolute value of the voltage even if polarity is
reversed when the probes are connected to the battery.
Ordinarily, connecting the probes with the polarity reversed results in a negative
voltage measured value, yielding a Lo comparator judgment result. To generate
an IN judgment whenever the reading falls within the specified range, even if the
probes have been connected backwards (resulting in a negative voltage mea-
sured value), set the absolute value judgment function to "On."
This function is configured on the menu screen.
During upper/lower
threshold setting
Upper threshold = average value + 3
Lower threshold = average value - 3
During reference value
and tolerance setting
Reference value = average value
Tolerance = 3
/ average value ×100%
Threshold and reference values can be set from 0 to 99999 (or 999999 for volt-
age), and tolerance can be set from 0.000 to 99.999%. Negative values are
not settable. Entries using statistical calculation results that exceed the valid
range are restricted to the range limit.
Configuring the Absolute Value Judgment Function (Voltage)
1
(The SHIFT indicator lights up.)
The menu screen is displayed.
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