Calibration
All SP Series scales may be calibrated with any precision test weight from 10 lb to 100 lb. The recom-
mended test weight is about 2/3 of the full scale capacity, but in general, the larger the test weight, the
more accurate the scale will be. The only restriction is that the test weight
must
be in pounds.
To calibrate the scale:
Turn the scale off. Locate the hidden switch on the base panel and set it at the rightmost position.
Turn the unit back on. The message "
C 0
" appears on the display briefly, followed by a value which
remains on the screen. Allow a 20 minute warm-up period for the load cell and indicator to become
thermally stable.
Press
ZERO
to zero the value, then press the
NET/GROSS
key to save the zero point value.
The display will momentarily prompt "
C 1
" for the span calibration, followed by "
0.00
" with one digit
flashing. Place the test weight on the platform.
Use the four directional keys to adjust the displayed value to the actual test weight value in pounds.
Increase the flashing digit by pressing the
lb/kg
key. Decrease the flashing digit by pressing the
ZERO
key. The position of the flashing digit may be changed by pressing the
key or the
TARE
key.
After setting the exact value, press the
NET/GROSS
key to save the value.
If the calibration was successful, the display will show "
ECAL
" momentarily, then freeze. Exit the
Calibration mode and enter the Normal Operating Mode by turning off the scale, positioning the
calibration switch back to the leftmost position, and turning the scale back on.
If the calibration was
not
successful, one of the error messages below will appear. Take the indi-
cated action to correct the problem, then perform a new calibration.
"Err0"
- The calibration test weight or the adjusted keyed-in weight is larger than full scale. Change
the calibration test weight or check the keyed-in weight.
"Err1"
- The calibration test weight or the adjusted keyed-in weight is smaller than 10% of full scale.
Change the calibration test weight or check the keyed-in weight.
"Err2"
- Check keyed-in weight with the actual weight placed on platform.
