4. To return to normal weight display (gross weight),
remove any items from the weighing platform and
press the TARE key again to re-zero the scale.
VII.
Calibration
Calibration and adjustment are performed at the factory.
However, the weighing range can shift slightly during
shipping. Also, due to changes in local acceleration of gravity
around the world, adjustment is recommended when moving
the scale from one location to another. To check calibration:
1. Place the required calibration weight on the scale
and note the displayed value.
2. If the displayed value is not within acceptable
tolerance (see chart below), adjustment is required.
Model
Gemini-20
VIII.
Adjustment
1. Turn the scale on and wait for the display to show
"0.000g".
2. Press and hold the ON key until the display shows
"CAL" then release.
3. Press the ON key once more. The display will flash
"10.000g".
4. Place one of the 10g calibration weights on the
center of the platform. Once the weight is accepted,
the display will change to show "20.000g".
5. Place the second 10g weight on top of the first one
to equal a total of 20g.
Acceptable
Tolerance (±)
0.005g
Calibration
Weights
2 x10g
Recommended
Accuracy Class
OIML M2