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AD-4430B
5.3.
Calibration
5.3.1.
Outline
In the calibration mode, the operation to relate the output voltage from a load cell to the mass
value and other operations directly related to weighing are performed.
Calibration with an
actual load
Calibration is performed using a calibration weight.
Zero calibration
:
................. Press
key when no load is applied.
Span calibration
:
................ Enter the calibration weight value and place
the calibration weight.
When the module enters the mode of calibration with an actual load, the tare
weight and the zero value will be automatically cleared.
Digital span
Calibration is performed without an actual load, by numerical input of the load
cell output voltage (mV/V). Set the functions related to the calibration.
Input voltage at zero
:
.......... Numerical input of the load cell output at zero.
Input voltage of span
:
.........Numerical input of the load cell output of span.
(Load cell output at full capacity
-
load cell output at zero)
Calibration weight value of span
:
........... Numerical input of the calibration
weight corresponding to the input voltage of span.
( These value relate the input voltage of span and the weight value.)
Gravity acceleration
correction
The correction calculates and corrects for gravity acceleration if the location
where the module was calibrated and the location where it is being used in are
different.
Digital linearization
Nonlinearity correction feature to correct weighing errors that occur halfway
between the zero point and weighing capacity. Up to 4 points can be input in
addition to the zero point, and the intervals between each point will be
calculated using curves.
Function related to
calibration
The function stores basic parameters of the module such as the minimum
division and weighing capacity and other data directly related to weighing is
performed. It includes the parameters for digital span calibration, dual range or
gravity acceleration correction is also performed.
All data initialization All the data such as zero value, tare weight, calibration data and function data
are initialized.
All the parameters in the calibration mode is stored in the FRAM.
