A&D GF-30K Instruction Manual page 51

Note Enter the tolerance value in percentage, with the reference value as 100%.
Only the digital input mode is available for setting the tolerance value.
MODE
The
Step 10 Press the
Note When Pound/Ounce is selected as a weighing unit, enter the values in ounces
for comparison.
In the density mode, comparison is performed to the density obtained.
key is not used to set the tolerance value.
key to exit the comparator function and return to the weighing mode.
CAL
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