4
Calibration
All SRP Series scales may be calibrated with any precision test weight from 10% to 100% of the
scale’s capacity. The recommended 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.
1. Turn the scale off. Locate the hidden switch on the base panel and set it at the rightmost po-
sition. 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.
2. Press
ZERO
to zero the value, then press the
NET/GROSS
key to save the zero point value.
3. The display will momentarily prompt "
C 1
" for the span calibration, followed by "
0. 0
" with one
digit flashing. Place the test weight on the platform.
4. 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. Pressing the PRINT key or the TARE key can change the position of
the flashing digit.
5. After setting the exact value, press the
NET/GROSS
key to save the value.
6. 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, posi-
tioning the calibration switch back to the leftmost position, and turning the scale back on.
7. If the calibration was
not
successful, one of the error messages below will appear. Take the
indicated 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.
Displayed Error Messages
Display Message
Cause or Condition
-HI-
Scale was turned on with a weight on the platform that exceeded the Zero
Capture Range. Scale must be turned on without extra weight on the plat-
form.
-LO-
Scale was turned on without stainless steel platform on scale base that ex-
ceeded the Zero Capture Range in the negative direction. Replace platform
and restart.
r
r
r
r
r
Total weight on platform exceeds scale's capacity.
– – – – –
During normal operation, the stainless steel platform was removed, resulting
in an under range condition. Replace scale platform.
