Calibrating at No Load

Caution

Complete this step within 30 seconds. Otherwise, the calibration process automatically ends.

To calibrate the scale with no weighted load, follow these steps:

  1. Verify that the Top Plate is properly installed, has no weighted load, and has nothing touching it.
  2. Press the Scale Zero button on the front panel of the NCR 7895.

    The scanner beeps once, and the 7‑segment diagnostic display scrolls either C25Lb or C10g. If a Scale Display is used, it blinks either CAL25 or CAL10. The scanner then proceeds to the next calibration step, Calibrating at Load.

    Note

    If the Scale Display blinks CAL F and the 7-segment display scrolls the error code u##, the Calibration at No Load is not successful. Check the error code and its corresponding recommended action. For more information, refer to Scale Warning Codes.

Important Notes

If the Scale Display blinks HOLD for the entire 30‑second time period and then times out, the process is unable to find a zero weight threshold. This may occur due to the following conditions:

  • The Top Plate is incorrectly installed.
  • The weight on the scale is outside a +/- 2% maximum capacity range (+/‑ 0.6 lb or +/‑ 0.3 kg).
  • The scale is incorrectly installed.

In this case, the scale cannot accept the calibration and returns to its prior state. There is no impact on the sealed calibration counter or the scale legal parameter counter. However, if calibration fails, the scale is non-operational until the problem is fixed and the scale is successfully calibrated. To fix this issue, go back to Entering Calibration Mode. The scale does not have to be reset and can be left on before re-entering Calibration Mode.