Routine Span To perform a routine span recalibration, run the conveyor until the belt is empty and stop it. Suspend the test weights from the belt scale per its instruction manual. Run the conveyor empty at maximum operating speed. Initiate span calibration current span count = #### From the zero calibration 1 2 span calculation, load value displayed 1 2 1 2 span deviation = ## accept deviation new span count = #### 1 2 return to run mode 1 2 Notes: • E6 is a reminder that a zero calibration is strongly suggested before a span calibration is initiated. Press ENTER to bypass this message. • E4 is an indication that the mechanical system is errant.
The use of P388, initial span, should be used judiciously and only after a thorough mechanical investigation has been exercised. The cause of the increased deviation must be found and rectified. A span recalibration as previously described can then be retried. Recalibration If the operator deems this deviation to be acceptable, set P388 to 1 to invoke an initial span calibration. Further deviations are now based on this new initial span. Note: Remove the test weight when the span calibration is complete. 7ML19985DJ01 Milltronics BW100 - INSTRUCTION MANUAL Page 35