WE2107
24
A2087-1.3 en/de
HBM
6
Scale adjustment
The scale is adjusted by setting the user characteristic curve on the WE2107,
that is to say, the weighing electronics adapt to the actual output signals that
the load cell supplies when the scale is not loaded or at nominal weight. Calib
ration weights are usually required for this, although the alternative is to input
the measured values, if these are known.
The WE2107 is adjusted in the 0 and 2 mV/V range as what is called the fact
ory characteristic curve (F_AdJ) (factory setting).
6.1
Prerequisites for scale adjustment
Before the scale can be adjusted, the nominal (rated) range of the scale and
other parameters must be set.
The prerequisites here are:
D
The parameter menu is called via the hidden pushbutton
D
The “ScALE
³
ACCES” parameter = 4 (access to all menus)
D
The “ScALE
³
LEGAL” parameter = oFF (legal‐for‐trade application
switched off)
D
Set the “AdJ
³
Unit...CAL” parameter
D
Set the “EA_CL” parameter to the gravitational acceleration of the adjust
ment location
D
The “EA_UL” parameter = EA_CL (disable gravitational acceleration cor
rection)
D
Disable linearization (“AdJ
³
Lin”: VAL1 = VAL2 = diSP1 = diSP2 = 0)
6.2
Partial load adjustment with the calibration weight
(standard method, CAP = CAL)
In most scale applications, the adjustment is made at two points, that is to
say, when the scale is not loaded and when a calibration weight is placed on
it. Calibration is carried out as follows:
1. Call the “AdJ” menu.
2. Check that the calibration weight is the same as the maximum capacity
(CAL = CAP).
3. Go to the “MEAS” (measurement) sub‐menu.
