Milltronics Accumass BW100, Instruction Manual

Page: 38 / 84

RECALIBRATION
In order to maintain the accuracy of the weighing system, periodic zero and span
recalibrations are required. Recalibration requirements are highly dependent upon the
severity of the application. Perform frequent checks initially, then as time and
experience dictate, the frequency of these checks may be reduced. Record deviations
for reference.
Routine Zero
Run the conveyor empty for several minutes to warm up the belt and insure that it is
empty. Test weights are not used during a zero calibration.
From the
run mode
E3 is an indication that the mechanical system is errant. The use of P377,
initial zero, 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 zero recalibration
as previously described can then be retried.
If the operator deems this deviation to be acceptable, set P377 to 1 to invoke an initial
zero calibration. Further deviation limits are now based on this new initial zero.
97/07/07
zero calculation,
load value displayed
zero deviation calculated
accept deviation
new zero count = ####
return to run mode
initiate zero calibration
current zero count = ####
RECALIBRATION
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