212/212X Installation & Technical
8200-M639-O1 Rev D 09/14
Single-Point for Span Only (Last Zero) Calibration
This calibration method requires one test weight and establishes a new
conversion factor (span) without affecting the zero calibration value
stored during the last calibration. This minimizes placing and removing
test weights and is especially useful when checking high capacity scales.
This method uses two calibration points, CAL1= and CAL2=. The value of
the test weight is entered when CAL1= is displayed and the ZERO key is
pressed when CAL2= is displayed.
CAL1= – First Calibration Weight
1. The display will show CAL1=0. This is the first of two calibration
steps.
2. Press the ZERO key to zero the scale.
3. Place the TEST WEIGHTS (TEST LOAD) on the scale platform.
4. Using the numeric keys input the value of the test weights.
5. Press the ENTER key.
6. Next, starting at the left and proceeding right, the dashes will
disappear, after which the display will show: CAL2=.
CAL2= – Second Calibration Weight
1. The display will show CAL2=0. This is the second of two calibration
steps.
2. Remove the weights on the scale platform.
3. Press the ZERO key.
4. The display will show: SIO?.
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