Holtgreven GSE-665 - Manual (Page 38)

6 0 S E R I E S I N D I C A T O R S
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check the accuracy of the calibration by weight without leaving the
Calibration Mode.
If the calibration was accurate, press [ENTER]. The indicator will prompt
you to save the new calibration plus any other changes you made. Press
[ENTER] to save, then [ENTER] again to exit. If the calibration is not
accurate, press [CLR]. The indicator will return to the New Zero? prompt.

If the calibration weight is less than 5% of capacity or if there is a large
change in the calibration, the indicator will prompt ReCal Req'd. Press
[ENTER] and you will be returned to the beginning of the calibration
selections, or press [CLR] to obtain the CAL OK? prompt as described
above and override the re-calibration requirement.
A variation of the calibration process is the linearization procedure.
Linearization is useful in improving the absolute accuracy of large-capacity
systems, which often exhibit poor linearity. This feature is documented in
the 60 Series Technical Reference Manual.