Hardy HI 1769-FC User Manual
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Chapter 5
Five point rate cal:
Command number decimal 96. This is the same as the 94 command; however
will use internal percentages previously set in the module. These may be default
percentages or previously defined percentages from previous cal.
Two point rate cal:
Command number decimal 97. This is the same as the 95 command; however
will use internal percentages already set in the module. These may be default
percentages or the previously defined percentages from previous cal.
Advanced rate cal:
Command number decimal 98. This is a two point calibration, however you
would need to enter in two percentages and actual rates those percentages give
you. This would be used if you already know the rate of change for two
percentages that would be used as the second and fourth settings.
You would need the two percentages in words 5 & 6 and you the corresponding
rates for these percentages in words 7 & 8.
To perform the rate calibration:
Step 1.
If you are doing the Five point defined (cmd #94), Two point defined
(cmd #95) or Advanced cal (cmd #98), then move the percentage
values into the Local output data location 5-9 based on command being
run.
Step 2.
(If you are not doing an Advanced Cal, skip to step 3.)
If you are doing an Advance cal, enter the two percentage values and
the two corresponding rate values into the output data locations 5-8.
Enter the command number into the first output table data location.
This will enter the two sets of values into the Rate cal table and
calculate the remaining entries in the table.
Step 3.
Move the rate cal command number into the first data location in the
Local output table.
This will cause the unit to run the feeder at the highest specified output
percentages for a set amount of time (specified as the feed time
parameter). The ROC value collected during these feed times will be
added to the rate cal table for that specific percentage. The unit will
repeat this for each of the lower percentage values depending on the
type of rate calibration used.
Step 4.
Clear the command number from the Local output table.
NOTE:
After completing the Weight calibration and/or the Rate calibration, the Write to Non-
volatile memory command should be enabled to save the calibration.