Ahlborn ALMEMO 2590-2A - 12.4 Scaling; 12.5 Data logger functions

12. Function menus
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Also enter known actual values in function :
actual value 1: 0.4 2: 100.0
and calculate correction in function setpoint 2 by pressing : <ADJ>
If the sensor is locked, a confirmation request will appear asking
whether adjustment should indeed be performed.
12.4 Scaling
Sensors or transmitters with standardized signal
output will usually have to be scaled to be able to
display the physical variable. If 2 actual values and
2 setpoints have been entered, the menu
SCALING
will, as described previously (see 12.3), perform
the task of calculating the scaling values, base
value and factor (see 13.6). The desired units and
the decimal point position must also be entered.
Calculating the scaling values
After entering all the necessary parameters
the scaling values are calculated in function setpoint 2 by pressing : < ADJ >
Scaling by means of a two-point adjustment
Sensors which are adjusted via the factor, e.g. force transducers and displace-
ment transducers, can also be adjusted online, as described previously in 12.3.
Simulate, select, and enter 1st setpoint 1 :
setpoint 1: -100.0
Adjust in
setpoint 1
by pressing : <ADJ>
2. Simulate setpoint 2
For ALMEMO force transducers (see Manual 3.6.2)
Simulate the control value
Calibration resistance ON/OFF : <S-ON> or <S-OFF>
Select and enter setpoint 2 :
2: 400.0
Two-point adjustment in setpoint 2 by pressing : <ADJ>
Force transducer with calibration resistance are adjustable also in the
sensor display.
It is also possible to adjust the end value only - without changing the
zero-point.
12.5 Data logger functions
The 3 function menus
Data logger functions
can
be used to acquire the measured values for all
measuring points either manually at certain times
or cyclically over a certain duration and to record
these either to the internal data memory (type
4AS) or to an external memory card; (see Manual
6.5). In the absence of all such storage media
these menus are not available.
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