Gram Precision RK-15 Series Operation Manual page 21

OK indication appears, when the item on the weighing pan is between upper
and lower limits.
LO indication appears, when the item on the weighing pan is smaller than
lower limit
Note: the item on the weighing pan should be more than or equal to 20e.
When changing the Hi-Lo value, the scale will activate the weighing checking
function automatically. If the Lo value is higher than Hi value, then the Hi
value will become the same value as Lo data.
Upper Quantity Limit
1. Long press key
blinking.
2. Press key
3. Press key
4. Press key
mode without saving.
Lower Quantity Limit
1. Long press key
2. Press key
3. Press key
under the weighing mode, the number leftmost is
or to shift and key
to start or close weighing checking.
to confirm and save. Press key
under the weighing mode. The number leftmost is blinking.
or to shift and key
to start or close weighing checking.
or to modify the value.
to return to weighing
or to modify the value.
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