13. Settings
13.2.10 Correction values
Correction values ´Zero-point´ and ´Gain´ can be used to correct sensors with
regard to their zero-point and gain. (see Manual 6.3.10)
Corrected measured value = (measured value - zero-point) x gain
Once the correction values have been programmed and the actual measured
value has been thus modified, the correction arrow appears beside the
measuring channel display (see 12.1) to show the measured value status.
For the purpose of automatically calculating any two-point adjustment a dedi-
cated ´Two-point adjustment´ wizard is provided. (see 14.3)
To reach maximum accuracy multi-point calibration of sensors is
now also possible - with option KL. (see XREF)
On many sensors, for adjustment on leaving our factory, the variables ´Calibra-
tion offset ´ and ´Calibration factor´ are used. These work like correction val-
ues; in the same menu these can be checked - but not changed.
13.2.11 Scaling values
To display a sensor's electrical signal as a measured value with a physical
quantity it is nearly always necessary to perform a zero-point shift and multipli-
cation by a factor. To perform these steps the functions ´Base value´ and
´Factor´ are provided. For a detailed description of scaling, with an example,
please refer to the Manual 6.3.11.
Displayed value = (corrected measured value - base value) x factor
The ´Factor´ can be programmed within the range -2.0000 to +2.0000. For
factors below 0.2 or above 2.0 the decimal point setting should be adjusted by
entering the ´Exponential´. Using the ´Exponential´ function the decimal point
can be shifted as far to the left (-) or to the right (+) as the display and the
printer permit. With standard sensors an exponential view of measured values
is not supported.
For automatic calculation from the actual value and the setpoint value a dedi-
cated ´Scaling´ wizard is provided. (see 14.2)
Once the scaling values have been programmed and the actual measured
value has been thus modified, the correction arrow appears beside the mea-
suring channel display (see 12.1) to show the measured value status .
13.2.12 Units
For each measuring channel the default units for the measuring range can be
replaced with any other units - with D7 sensors 6 characters, otherwise 2 char-
acters. (see Manual 6.3.5)
Not only upper and lower case letters but also a number of special characters
are available (excluding ; / | #). The units are shown after the measured value
or programming value in question.
If ´°F´ is entered as units the temperature value will be converted au-
tomatically from degrees Celsius to degrees Fahrenheit. If ´!C´ is en-
tered cold junction compensation will be disabled. Entering the ap-
52 ALMEMO
®
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