212/212X Installation & Technical
8200-M639-O1 Rev D 09/14
Single-Point for Zero Only (Only Zero) Calibration
This calibration method requires no test weight, an empty scale and
establishes a new zero without affecting the conversion factor (span).
This is useful to regain the full range of zero limit when the dead load of
the scale has changed. This would occur for example, if a guard rail has
been added to the scale platform. This method uses two calibration
points, CAL1= and CAL2=. The ENTER key is pressed 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. Insure the scale is empty.
3. Press the ENTER key.
4. Starting at the left and proceeding right, a series of dashes will
appear on the display.
5. 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. Press the ZERO key.
3. The display will advance to SIO?.