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Mirus for H2/H3 Graingage User's Guide
Check Weigh Bucket Calibration
Weigh bucket calibration is stable. It rarely changes or loses accuracy. However, because
the consequences of poor calibration can be devastating to your research data,
HarvestMaster highly recommends checking the weigh bucket calibration every year
before the harvest season begins, as well as every day before harvest. This can be done
on the Weight Diagnostics screen.
To check the weigh bucket calibration,
1.
After calibrating the weigh bucket, tap the gear icon
wizard to open Diagnostics > Weight.
2.
Hang the calibration weight from each of the weight hangers.
3.
The Diagnostics screen should report weight readings that are very close to the
value stamped on the calibration weight. If it's not within .05 lb (23 g) when the
combine and thresher are on and .02 lb (9 g) when the combine is off,
HarvestMaster recommends a new weight calibration.
Note: If the weight readings continue to be off, you may have a bad load cell or
something interfering with the bucket weight.
4.
Tap the check icon
Test Weight Load Cell Calibration
Test weight load cell calibration ensures the accuracy of the GrainGage's weight
calculations. This calibration should be done on initial setup and should not need to be
calibrated again unless repairs are needed on the GrainGage weigh system.
Calibrate Test Weight
Use the test weight load cell calibration wizard and the smaller calibration weight (3 lb
(1.4 kg)) included with the GrainGage to calibrate the test weight chamber load cell.
To calibrate test weight,
1.
Park the combine on a level surface.
2.
Shut off the engine. Keep the GrainGage powered on.
3.
Check that the test chamber is empty.
4. H2 or H3 Weight Calibration
to close the Diagnostics box.
below the calibration
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