OHAUS DISCOVERY BALANCE, Руководство по обслуживанию

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APPENDIX A STANDARD CALIBRATION
A.1 Automatic Internal Calibration (Advanced Auto Cal)
Internal calibration can be done without using an external weight.
Note:
Be careful not to touch the scale or the table while calibration is in progress,
as it will cause the process to fail.
With the balance on, press the
Cal button and then release it.
Automatic calibration begins. It will take a minute or so.
aUtOCAL
BUSY
When it is complete AutoCal Done appears.
aUtOCAL
DONE
If calibration fails, AutoCal Abort appears. If this
happens, level the balance and try again.
If it continues to fail, perform a Service Calibration.
If this also fails, refer to Chapter 3 of this Manual.
AUtOCAL
ABORT
When calibration is finished, the balance returns to the weighing mode.
AutoCal will automatically calibrate the balance each time there is a change in temperature
significant enough to affect accuracy, or after every 11 hours. In certain circumstances a user
may need to prevent automatic calibration, for example, while taking a series of weights.
AutoCal can be turned off from the Calibration Menu, as follows:
With the balance on, press and hold the Cal Menu
button until MENU CALIBRATE is displayed, and
CALIBRATE is blinking. Press Yes .
CAL AUTOCAL is displayed. Press Yes to select it.
The current
AUTOCAL setting will then be displayed.
The AutoCal setting will be displayed as either
SET OFF or SET ON .
Press
No to toggle the display from
AUTOCAL SET ON to AUTOCAL SET OFF ,
then press Yes . Press Exit to exit the Calibrate Menu.
Repeat this process to re-activate AutoCal.
Automatic internal calibration is included in all Discovery models.
Ohaus Corporation www.ohaus.com A-2 Discovery Balance Service Manual