Siemens Milltronics BW100 - Material Tests for Accuracy

Page 30 Milltronics BW100 - INSTRUCTION MANUAL 7ML19985DJ01
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Recalibration
Material Tests
Perform material tests to verify the accuracy of the of the span calibration. If the material
tests indicate a repeatable deviation exists, a manual span adjust (P019) is then
performed. This procedure automatically alters the span calibration and adjusts the test
load (P017) value, yielding more accurate span recalibrations.
1. Run the belt empty.
2. Perform a zero calibration.
3. Put the BW100 into RUN mode
4. Record the BW100 total as the start value
_ _ _ _ _ _
5. Run material at a minimum of 50% of design rate over the belt scale for a minimum
of 5 minutes.
6. Stop the material feed and run the conveyor empty.
7. Record the BW100 total as the stop value
_ _ _ _ _ _
8. Subtract the start value from the stop value to determine the BW100 total
9. Weigh the material sample if not already known.
• Calculate the span adjust value:
% span adjust = BW100 total - material sample weight x 100
material sample weight
Note: Test weights are NOT used during material tests.
0
kg / lb
kg / lb
BW500
BW500
BW100 total = _ _ _ _ _ _ material sample weight = _ _ _ _ _ _
start total
stop total
scale
scale