Calibrating The Balance; Calibration Of Gai Series - Scale House GAI420 Operation Manual

Since electronic balances are affected by gravity gravitational acceleration, they produce different values in various
locations. Therefore, before use, balances must be calibrated at the location where they are installed. Calibration is
also required after long periods without use, or if a balance begins to produce inaccurate values. Calibration of a balance,
or "span adjustment," is required to produce accurate measurements.

9.1 Calibration of GAI Series

Applicable models: GAI420, GAI620, GAI2200, GAI4200
※ Span adjustment should be performed with the balance installed perfectly level and without any load on the
measurement pan.
1 Invoke the span-adjustment function.
Hold down.
2 Start span adjustment.
3 Zero-point calibration
4 Calibration of weighing capacity point
Calibration

9. Calibrating the Balance

Hold down the
release your finger when the display
switches from [Func] to [S.A. CAL].
Release your
finger.
Press the
down the
release both fingers simultaneously.
Display will change to a flashing
[CAL. 0] and the zero-point will be
calibrated automatically.
Release both
fingers at the
same time.
Once zero-point calibration is
completed, display switches to [CAL.
on]. Calibration now proceeds to that
of the weighing capacity point.
Slowly and fully turn the calibration
knob in the direction of [Calibration].
The balance assumes the state where
the calibration weight is loaded on the
measurement pan.
The display starts flashing and the
balance automatically adjusts the
weighing capacity point.
Function key, then
Function key while holding
Zero/Tare key, then
31