OHAUS T71P, Service Manual

Page: 23 / 48

CHAPTER 1
GETTING STARTED
7000 Series T71 Indicator Service Manual 1-17 Ohaus Corporation www.ohaus.com
CAL
CAL TEST
tESt
kg
0
tESt
kg
10
tESt
kg
--T--
10.000
kg
0.001
kg
DIFFERENCE
tESt
kg
--T--
1.8.5 Calibration Test
NOTE : Calibration Test is always available (even when LFT is set to ON).
Calibration test is used to compare a known calibration weight against the stored span
calibration data. Go to the Calibration menu, and Press
No until CAL CAL TEST appears.
With no load on the scale, press Yes . The display shows the zero load
calibration point.
With no load on the scale, press Yes . The display shows --T-- , followed
by the full load calibration point.
Place the specified full load calibration weight on the scale and
press
Yes . The display shows --T-- , followed by difference between
the calibration weight and the stored calibration data.
After five seconds, the display returns to the current application mode.
1.8.5 Geographical Adjustment Factor
The Geographical Adjustment Factor (GEO) is used to compensate for variations in gravity.
To determine the GEO factor that corresponds to your location, see Appendix A.
Note: Changing the GEO Factor alters the calibration. The GEO value was set at the factory
and should only be changed if the location of use varies from the default setting.
To adjust the GEO Factor, go to the Calibration menu, and Press No until CAL GEO appears.
Press Yes . The default GEO setting appears. Press No to increment the number, or Back to
decrement, until the desired number appears. Then press Yes .
Settings from 1 to 31 are available.
CAL GEO appears again. Press No to exit the GEO menu. Then press Exit to return to the
current application mode.