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Chapter 5: Calibration 5-9
Section 4: Performing the Calibration
The scale firmware controls calibration. It waits for you to respond to
the prompt before going to the next step. When you have placed the
weight on the Top Plate and pressed the Scale Zero button, the
firmware sounds a single tone and changes the display to the next
prompt. If voice is enabled, the scale tells you which weight to put on
next. You can end the procedure before you have completed the
calibration function by turning the unit off. However, if you do this,
you must still calibrate the scale before placing it into service.
Note: the pound and kilogram weights used for calibration are not
equivalent values. They are the actual weights the firmware needs to
perform the calibration.
Instructions
For the purpose of this procedure, a scale set-up to weigh pounds is
used. Kilogram scales follow the same instructions but use the
appropriate weights (shown in parentheses).
1.
Press the Reset/Scale Zero button to display the Cal and PAr
values. Record these values.
2.
Remove Top Plate and press the Calibration Switch on the Scale
Board.
3.
Immediately reinstall Top Plate. Ensure that rubber bumpers of
Scale Hinge Assembly are properly seated in sockets of Top Plate.
4.
Display should show Ready C 0.00 lb (0.000 kg).
5.
The calibration process consists of sequentially adding and then
removing a series of weights. This sequence is shown in the
following table.