6.6 Scaling, Decimal Point Setting
For indicating the electrical signal of a sensor as a measured value of a
physical variable it is, in most cases, necessary to set a zero point shift and to
perform a multiplication with a certain factor. The functions BASE and
FACTOR are available for this. A detailed description of the scaling, including
an example, can be found in the manual section 6.3.11.
Indicated value
= (corrected measured value - BASE) x FACTOR.
The FACTOR can be programmed in the range -2.0000 to +2.0000. For factors
over 2.0 or under 0.2 a corresponding decimal point setting must be
considered by entering the EXPONENT.
Function:
Base value
BASE
input see 5.3
Function:
Factor,
Exponent
FACTOR
input see 5.3
The arrow
CORR
will be indicated in the display if scaling values are
programmed and if the measured value is actually modified.
Decimal Point Setting
The EXPONENT allows to shift the decimal point to the left (-) or right (+) as
far as it can be indicated on the display and printer. An exponential
representation of measured values is not possible.
For
entering the exponent
within the function FACTOR the keys
ENTER
,
±
must be pressed so that the exponent is flashing. The sign can then be
changed by using the key
±
. The numerical value is set by using the keys
▲
and
▼
and the programming can be completed by using the key
ENTER
.
Input exponent:
,
, (
) ,
... or
... ,
ENTER
±
±
ENTER
1:- 7.0 0
pH
1:1.0 3 5 0
+2
26
ALMEMO
®
2290-8
Sensor Programming