A.2 Linearity Calibration - OHAUS NV212 Service Manual

A.2 LINEARITY CALIBRATION

Note: This menu is locked out in Legal for Trade applications. To regain access,
see Section 1.7.
See Section 4.1 for Calibration Masses required for each model.
Note:
Be careful not to touch the scale or the table while calibration is in progress,
as it will cause the process to fail.
1. With scale powered on, press and hold the
MENU button until
button is released
displayed.
2. Press Yes to enter the sub-menu.
will be the first menu item. Press No to
advance to the
3. Press Yes to accept, the display will
show a flashing
point weight data is stored.
4. The first linearity calibration point
weight value will appear. Place the
weight on the pan. Note: Early
production scales required a Yes press
to continue.
The display shows
weight data is stored.
5. The second linearity point weight value
will appear. Place the weight on the
pan. Note: Early production scales (e.g
SW version 1.02) require a Yes press
to start the calibration.
The display shows
weight data is stored.
6. When calibration is complete, the
display shows done, and then returns
to the previous application mode and
scale is ready for use.
NOTE: If calibration fails, ensure that the test area is free from drafts and the surface the scale rests
on is level and free of vibrations. Then try to calibrate again. If it continues to fail, there may be an
internal problem. To resolve internal problems, follow procedures in Chapters 2 and 3.
Navigator Series Service Manual
mMeNU
appears. When the
.C.A.L.
will then be
SPAN
LIN
menu item.
--C--
while a zero
--C--
while the
--C--
while the
37
APPENDIX A STANDARD CALIBRATION
.C.a.l.
LIN
--C--
3000
5000
Done
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