Calibration - Acom JW-1C Owner's Manual

Calibration

The following procedure describes how to Zero Calibrate and Span calibrate
the balance. These two are always done together.
Calibration
1. Turn scale off and remove the platter.
2. Locate the CAL Switch (rear of platform).
3. Press and hold down the CAL Switch while you turn on the scale.
4. Once the display reads
5. Replace the platter on the platform.
6. Press the
7. After the STABLE lamp turns on, press the
8. The scale will display
9. Press the
10. Once the STABLE lamp turns on, place the mass weight on the platter.
This mass must be equal to exactly the balance's capacity in
grams.
11. After the STABLE lamp turns on, press the
12. The scale will display
13. Remove mass weight from the platter.
14. Turn scale off and then back on.
NOTE: The balance may show
.
If it displays
too heavy or the scale may need servicing (the load cell may have been
overloaded or shock loaded.)
If it displays
too light or the scale may need servicing (the scale may have been dropped or
mistreated.)
11
, release the CAL Switch.
key.
and then show
key.
, then show
then the mass weight that you are using to calibrate is
then the mass weight that you are using to calibrate is
key.
.
key.
, and then show
or at this point instead of
.