Scale parameters and functions of the belt scale
8.5 Calibration of weight measurement
SIWAREX WP241
Manual, 04/2014, A5E33713528A
85
Span calibration by test chain
Span calibration by test chain
If the scale is loaded with a chain (e.g. 50% of the nominal load), the weight is assigned to
the new digital value returned by the analog-to-digital converter.
The belt is warmed-up and the zero point has been determined.
1. Stop the belt.
2. Enter a test chain corresponding to the measuring range in DR3 (e.g. 50% of the nominal
load).
3. Place the test chain onto the scale.
1. Switched the belt on. The test chain is positioned on the scale.
2. Start recording of the weight for the parameterized number of belt revolutions using the
command "Start span calibration with test chain" (65). The status display in DR30
indicates that the calibration is running. The result is displayed in DR4.
3. Import the working point into DR3 using the command "Apply span calibration digits" (89).
The characteristic curve has thus been determined. The scale can calculate the weight
values for the complete load range.
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