OHAUS 3000 Series T31P, Service Manual

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CHAPTER 1
GETTING STARTED
1.8.2 Span Calibration
Span Calibration uses two points: the first point is the zero value, with no weight on the scale.
The second point is the Span value, with a calibration mass placed on the scale.
Press and hold TARE/Menu until C.A.L. appears, then press Yes .
SPAN appears. Press Yes to access the Span Calibration menu.
The display flashes 0 . With no weight on the scale, press Yes 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
Yes .
To choose a different span point, press No to increment the selections, or Back to decrement
the selections. (See Appendix A for available span points.) When the desired value is
displayed, place the specified weight on the scale and press
Yes .
The display flashes ---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.
1.8.3 Linearity Calibration
Linearity calibration uses three calibration points: the first with no weight on the scale, the
second at approximately half capacity, the third at capacity. The Linearity calibration points are
fixed and cannot be altered user during the procedure. See Appendix A for the linearity points.
Press and hold TARE/Menu until C.A.L. appears, then press Yes .
SPAN appears. Press No . Linearity appears. Press Yes to access the
Linearity Calibration menu.
The display flashes 0 . With no weight on the scale, press Yes 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
Yes .
The display shows --C-- while the mid-calibration point is established.
The display flashes the full calibration point. Place the specified weight on the
scale and press
Yes .
The display shows --C-- while the full calibration point is established.
After successful calibration, the scale exits to the active weighing mode and
displays the actual weight value.
Ohaus Corporation www.ohaus.com 1-10 3000 Series T31 Indicator Service Manual