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5
CALIBRATION
When to Calibrate
Calibration may be required when it initially installed or it is moved a
substantial distance. Also periodical calibration will be recommended.
Calibration using a Calibration Weight
1. Enter calibration mode.
Press the [ON/OFF] key to turn the power off. While
pressing both the [RE-ZERO] and [UNITS] keys,
press the [ON/OFF] key.
Cal will be displayed.
Or remove the calibration switch cover on the bottom
and press the calibration switch while in the weighing
mode. Then
Cal will be displayed.
2. Zero calibration
Press the [RE-ZERO] key to calibrate zero. Cal0 will be displayed.
Wait for the stable indicator to be displayed and press the [RE-ZERO] key.
Calf will be displayed in a few seconds. If the zero calibration only is to
be done, press the [UNITS] key. The scale will automatically return to the
weighing mode.
3. Span calibration
When Calf is displayed, place the weight at the center of the platform.
Wait for the stable indicator to be displayed, then press the [RE-ZERO] key.
The display will show
end and the scale will automatically return to the
weighing mode. See “SPECIFICATIONS” about the calibration weight.
Calibration by Gravity Compensation
The scale is calibrated at 9.798 m/s
2
at the factory. If the acceleration of
gravity at your location is not same and if you do not have calibration
weights, you can calibrate the scale by compensating the acceleration of
gravity. (Refer “The Value of Gravity at Various Locations”.)
1. Set a new acceleration value.
When Cal is displayed, press the [UNITS] key and 9.798 will be
displayed. Press the [RE-ZERO] key to increment the blinking digit and
press the [UNITS] key to move the blinking digit.
2. Store the value in memory.
While pressing the [UNITS] key, press and hold the [RE-ZERO] key and
release the [UNITS] key. Then the display will show
end and return to
Cal . Turn the scale off to finish the procedure.
Calibration switch cover
Calibration switch