OHAUS DISCOVERY BALANCE, Руководство по обслуживанию

Страница: 90 / 99

APPENDIX B SERVICE CALIBRATION
B.3 Ramp
The first sub-menu in the Service Menu is Ramp. The ramp display shows the percentage of
use of the A to D circuit. The normal range is 6 -10%. The value is not as important as how it
changes. It should increase as the weight on the balance is increased. The ramp display
should remain constant without fluctuations. It is OK for the last digit to fluctuate as long as it
stabilizes with the addition of a small mass.
To view the Ramp value, press Yes . A number will
appear on the lower portion of the display and should
be constant. Place masses on the balance from
minimum to maximum capacity. The reading will
increase but should not fluctuate. The example at right
is with no weight on the Pan. The reading will vary with
other balances.
RAMP
8.4
To exit the ramp function, press Exit , then No .
The balance advances to the Span calibration menu.
Press
Yes to perform Span Calibration. Press No to
advance to Int Cal Calibration, and No again to
End Srv . If you press Yes at this point, the balance
goes off.
SeRvICe
SPAN
Ohaus Corporation www.ohaus.com B-2 Discovery Balance Service Manual