QHW digital weighing scales user’s guide
SECTION 4 KEY DESCRIPTIONS
Zero or 
Set the zero point for all subsequent weighing. The display shows zero.
A secondary function , of "Enter" key when setting parameters or other functions.
Tare or 
Tares the scale. Stores the current weight in memory as a tare value, subtracts the tare value from the weight and shows the results. This is the net weight. Entering a value using the keypad will store that value as the tare value.
A secondary function 
, of incrementing the active digit when setting a value for parameters or other functions.
Lim or
Sets the limits for check weighing. Allows setting of either the low limit or the high limit or both.
Secondary function , is to move the active digit to the right when setting values for parameters or other functions.
%
Enters the percent weighing function. Allows the weight, unit weight, and count to be seen when parts counting.
Secondary function 
, is to move the active digit to the left when setting values for parameters or other functions.
Func or
Used to select the function of the scale. If the scale is weighing it will select parts counting. Of it is not in weighing mode it will return the user to weighing.
Secondary function ( C ) , is to act as a clear key when setting values for parameters or other functions.
Print or
To print the results to a PC or printer using the optional
Secondary function (ESC) , is to return to normal operation when the scale is in a parameter setting mode.
U key
This key will select either kilograms、 pounds、 ounce、g and t for the weighing unit.
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