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Current value and the New value. Press the Enter key again to accept the new value
or the Menu/Esc key to exit without making any changes.
Material Test
(Main Menu > Calibration > Material Test)
When you select this procedure you will see another screen as follows:
GCM Total ↑
Actual Total
Run Procedure… ↓
The purpose of a Material Test is to run a quantity of material over the scale (or
feeder) and weight that quantity on a reference scale for comparison. The reference
scale must be in known good condition and have an accuracy better than the desired
accuracy of the Genetix. For example, if the Genetix controlled feeder is to have an
accuracy of +/- 0.25%, the reference scale should have an accuracy of +/- 0.10%.
Note: Running a proper material test is complicated and can be very expensive, but is
arguably the best way to calibrate your scale (or feeder). If you would like assistance
organizing a well-run test, please contact the Merrick Customer Support department.
To run a Material Test procedure, first reset the Sub-Total totalizer (see Main Menu >
Reset Totals > Reset Sub-Total). Then run a quantity of material over the scale that
has either been pre-weighed or can be post-weighed on the reference scale.
Go to the Material test screen and the material will be totalized on the first line that
says “GCM Total”.
After the material has been weighed on the reference scale, that total should be
entered by highlighting the line that reads “Actual Total” and entering the actual total.
Once both values are persent, highlight the line that reads “Run Procedure” and
press the Enter key. A new screen will be displayed with the following data:
Diff [x] 00.00%
Curr: [x] 10000.00
New: [x] 10000.00
Press to Accept test
Press “Menu/Esc” to reject test
Note: The subscript [x] refers to the load cell number, i.e. 1 or 2 (if two load cells are
configured)
The percentage difference (“Diff”) is shown on the first line, and represents the
difference between the current Scale Factor, and the results of this procedure,
relative to the current Scale Factor.
The current Scale Factor (“Curr”) is shown on the next line.
The new Scale Factor (“New” is shown on the third line. This value will become the
current Scale Factor if the results of this procedure are accepted.
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