Span Calibration; Linearity Calibration - OHAUS 3000 Series Instruction Manual

3000 Series Indicators EN-15

3.3.1 Span Calibration

Span Calibration uses two points to adjust the scale. The first point is the zero value where there is no weight
on the scale. The second point is the Span value where a calibration mass is placed on the scale.
When SPAN is displayed, press the Yes button to access the Span Calibration menu item.
The display flashes 0.
With no weight on the scale, press the Yes button to establish the zero point.
The display shows --C-- while the zero point is established.
The display flashes the span calibration point. Place the specified weight on the scale and press the Yes
button.
To choose a different span point, repeatedly press the No button to increment the selections or press the Back
button to decrement the selections. Refer to Table 3-3 for available span points. When the desired value is
displayed, place the specified weight on the scale and press the Yes button.
The display shows --C-- while the span point is established.
If span calibration was successful, the scale exits to the active weighing mode and displays the actual weight
value.

3.3.2 Linearity Calibration

Linearity calibration uses 3 calibration points. The first calibration point is established with no weight on the
scale. The second calibration point is established at approximately half capacity. The third calibration point
is established at capacity. The Linearity calibration points are fixed and cannot be altered by the user during
the calibration procedure. Refer to Table 3-3 for the linearity points.
When LINEAr is displayed, press the Yes button to access the Linearity Calibration menu item.
The display flashes 0. With no weight on the scale, press the Yes button to establish the zero point.
The display shows --C-- while the zero point is established.
The display flashes the mid calibration point.
Place the specified weight on the scale and press the Yes button.
The display shows --C-- while the mid point is established.
The display flashes the full calibration point.
Place the specified weight on the scale and press the Yes button.
The display shows --C-- while the full point is established.
If linearity calibration was successful, the scale exits to the active weighing mode and displays the actual
weight value.
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