Check Test Weight Calibration; Moisture Curve Calibration; M2.0 Moisture Calibration - Juniper HarvestMaster mirus H2 User Manual

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Mirus for H2 Classic GrainGage

4. 3. 2 Check Test Weight Calibration

Test weight 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

test weight calibration every year before the harvest season begins, as well as every day before harvest. This

can be done on the Test Weight Diagnostics screen.

CAUTION: Do not re-wet grain samples. If you need to adjust the moisture content, take a natural

sample and dry it down.

Before harvesting, you need to generate a chamber calibration (moisture curve). Chamber calibrations align

the test weight and moisture reading with a benchtop lab sensor.

For better accuracy, the practices in this guide are designed to streamline the calibration process and teach

users how to create moisture curves.

With the release of Mirus 4.3.0 there are two ways to perform a moisture calibration with the same

hardware—the traditional EM moisture curve or the new M2.0 moisture calibration for certain grains. The

new M2.0 moisture model is a preset model that will be offset based on the samples you provide during

calibration. If you are harvesting wheat, corn, barley, oats, canola/rapeseed, or soybean, HarvestMaster

recommends using the M2.0 moisture model. For more information about the M2.0 moisture calibration

see 8.4.1 Instructional Content on page 128.

H2 Classic GrainGage Calibration

1. After calibrating the test chamber, tap the gear icon

below the calibration wizard to open Diagnostics.

2. Hang the calibration weight from the weight hanger

below the test chamber.

3. The Diagnostics screen should report a Chamber

Weight reading that is very close to the value stamped

on the calibration weight. If it's not within .05 lb (23 g)

with the combine off, HarvestMaster recommends a

new weight calibration.

4. Tap the check icon

to close Diagnostics.

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