A&D HT-120 Instruction Manual - page 10
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gravity acceleration of your scale to the value of the area where the
scale is used. See “The Value of Gravity Acceleration at Various
Locations” of this manual.
Step 1 Start from Cal display at the Step 1 of “Calibration Using a
Calibration Weight”, and press the UNITS key and the current
acceleration value will be displayed. ex. 9.7985
Step 2 Press the RE-ZERO and the digit that can be changed starts to
blink. Change the value with following keys.
RE-ZERO key To increment the blinking digit.
UNITS key
To move the blinking digit.
Step 3 After setting the new value, press the RE-ZERO key while
pressing the UNITS key. Then, the display will show end for
a second and stop blinking the value. Press the ON:OFF key to
finish the procedure.
Restoring the Calibration Data
The zero calibration, span calibration and gravity acceleration values
can be restored to the factory default values.
Ex. The scale was calibrated with wrong weight, but there is no
correct weight. The values above can be reset to the factory default.
Step 1 Start from Cal display at the Step 1 of “Calibration Using a
Calibration Weight”, and press the UNITS key twice to display
Clr .
Step 2 Press the RE-ZERO key, then the display will show Clr no .
Press the RE-ZERO key again to display Clr go to restore.
Step 3 At the display Clr go , press the RE-ZERO key while pressing
the UNITS key. Then, the display will show end for a
second and automatically return to Clr .
Press the ON:OFF key to finish the procedure.
If perform the step 3. to the display Clr no , the display will
return to Clr without showing end .