OHAUS DISCOVERY BALANCE, Руководство по обслуживанию

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APPENDIX A STANDARD CALIBRATION
A.2 Span Calibration
Before initiating Span Calibration, determine the balance’s model number. It appears when the
balance is powered up. Also be sure to have masses available
Press and hold
Cal Menu until Menu Calibrate is displayed with CALIBRATE blinking, then
release the button. Press Yes to enter calibration. CAL AUTOCAL is displayed. Press No .
Press Yes to initiate span calibration. For a split
second SPAN_ CLEAR SPAN will come up on the
display and then 100_ACCEPT ? .
Press No to toggle to 50_ACCEPT ? and back to
100_ACCEPT ? for the acceptable weight used if the
acceptable weight is 100 grams
. Then press Yes .
100
ACCEPT ?
Next the display shows the
Add Weight message
with the weight selected. Place the indicated weight
in the Pan. Calibration will begin.
100
ADD WEIGHT
The
SPAN BUSY message flashes while the balance
reads the maximum weight setting.
SPAN
BUSY
When the maximum weight reading is taken, the
Clear Pan message appears. Remove weights to
allow the zero reading to be taken.
100
CLEAR PAN
While the balance takes the zero reading,
0_BUSY
is displayed.
0
BUSY
If calibration is successful the
SPAN DONE message
appears, and an
*
appears on the left of the screen,
signifying that the balance is stable. A small O
appears on the top left of the screen, meaning the
zero reading is set.
SPAN
DONE
If calibration is unsuccessful, SPAN ABORT appears.
This may mean the balance is unstable – level the
balance and try again. If still unsuccessful, check for
problems as explained in Chapter 3 of this manual.
SPAN
ABORT
When calibration is finished, the balance returns to the weighing mode.
Discovery Balance Service Manual A-3 Ohaus Corporation www.ohaus.com