Holtgreven GSE-665 - Manual (Page 35)

C H A P T E R 3 : C A L I B R A T I O N
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1. Remove all weight from the scale.
2. Access the Calibration Mode (see page 23).
3. Press [SELECT] to toggle to the Only Zero? routine.
4. At the Only Zero? prompt, press [ENTER].
The displayed value zeroes out. Adj Zero! is displayed briefly, followed
by CAL OK?.
5. Press [ENTER] to accept the newly established zero, or [CLR] to
repeat the calibration.
9. At the Enter = Save prompt, press [ENTER]
10. To return to the Weighing Mode, at the ENTER = EXIT prompt, press
[ENTER].
C AL R ESET
Cal Reset may be necessary when an over-load or under-load condition
exists, preventing the completion of the calibration process. Calibration
Reset adjusts the zero and gain factors of the A/D amplifier to factory
default values for maximum sensitivity.
After performing a calibration reset, a complete recalibration is required.
The effects of a calibration reset do not take effect until the indicator is
recalibrated and calibration information has been saved.

If Code 02 (under-load) or Code 03 (over-load) is displayed during
calibration, press [CLR] to perform a calibration reset.
When reset, these parameters are adjusted to the lowest possible values.
Contact your GSE Distributor regarding Information Parameters for a more
detailed explanation on the gain factors.
Normally, a Cal Reset is performed if the amplifier is locked in at an
extremely high gain factor and will not allow a new calibration to be
performed.
1. Access the Calibration Mode (see page 23).
2. Press [SELECT] to toggle to the Cal Reset.