OHAUS T51P, Service Manual

Page: 18 / 42

CHAPTER 1
GETTING STARTED
1.9.3 Linearity Calibration
Linearity calibration uses three calibration points. The full calibration point is established with a
weight on the scale. The mid-calibration point is established with a weight equal to half of the full
calibration weight on the scale. The zero calibration point is established with no weight on the
scale. The mid-calibration points cannot be altered by the user during the calibration procedure.
Press and hold TARE/Menu until C.A.L. appears, then press Yes .
( LFt.NO appears briefly before C.A.L. , if the Indicators is not in LFT mode.)
ZERO appears. . Press No . SPAN appears. Press No . Linearity appears.
Press Yes to initiate Linearity Calibration.
The display flashes the full calibration point and calibration unit.
Place the specified weight on the scale and press
Yes .
To choose a different full point or calibration unit (kg or lb), press No to increment the
selections, or Back to decrement the selections. When the desired value is displayed,
place the specified weight on the scale and press Yes .
The display shows --C-- while the full calibration 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 0 . With no weight on the scale, press Yes to establish the
zero point.
The display shows --C-- while the zero point is established.
When linearity calibration is completed, the display shows dONE .
The scale exits to the active weighing mode and displays the actual weight
value.
Ohaus Corporation www.ohaus.com 1-12 5000 Series T51 Indicator Service Manual