OHAUS TA152, Руководство по обслуживанию

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APPENDIX B THE SERVICE MENU
APPENDIX B. THE SERVICE MENU
This section describes the Service Menu and sub-menus, which allow authorized service
personnel to perform factory Linearity and Span calibrations.
B.1 Entering the Service Menu
Enter the Service Menu by pressing and holding
Print / Cal and UNIT together. RAMP appears.
Press Yes to select Ramp .
ramMp
B.2 Ramp
The Ramp display shows the percentage of use of the A to D circuit, that is, of the temperature-
compensated duty cycle. The Ramp value should be between 20% and 60%. The actual value
is not as important as how it changes. It should increase as the weight on the scale is
increased. And the ramp display should remain constant without fluctuations.
If you press Yes to select Ramp , a number appears.
It should be constant. Add masses from minimum to
maximum capacity. The reading will increase, but
should not fluctuate. The example at right is with no
weight on the Pan. It will vary with other scales.
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To exit the ramp function, press No .
The scale advances to the Linear calibration menu.
Press Yes to perform Linear Calibration.
(See next page.)
LIN
Traveler™ Series Service Manual B-1 Ohaus Corporation www.ohaus.com