Siemens Milltronics BW500, Operating Instructions Manual

Page: 71 / 220

Recalibration
7.2 Material Tests
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
69
7.2.1 %Change
To run a %Change material test:
1.
Run the belt empty
2. Perform a zero calibration
3. Put the BW500 and BW500/L into RUN mode
4. Record the BW500 and BW500/L 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 BW500 and BW500/L total as the stop value _ _ _ _ _ _ _
8. Subtract the start value from the stop value to determine the BW500 and BW500/L total
9. Weigh the material sample if not already known
BW500 and BW500/L total = _ _ _ _ _ _ _
material sample weight = _ _ _ _ _ _ _
Calculate the span adjust value
% span adjust = (BW500 - material sample weight) x 100/ material sample weight