Ohaus DISCOVERY SEMI-MICRO AND ANALYTICAL BALANCES Manual - Manual (Page 35)

EN-31 Ohaus Discovery
3.7.2 Calibration
Discovery balances offer a choice of 4 calibration methods: Internal Calibration (Advanced AutoCal), Span Calibration, Calibration Test and
Calibration Adjust.
• Advanced AutoCal - Two internal masses are used for linearization of calibration by using three weight values: zero, a weight value at
midpoint of the balance’s weighing range, and a weight value at or near the balance’s specified capacity.
• Span - Span calibration ensures that the balance reads correctly within specifications using two weight values: zero and
a weight value between 25% and 100% of the balance’s capacity.
• Cal Test - Calibration test allows the stored calibration data to be tested against the current mass being used for the test.
•
Cal Adj - AutoCal allows adjustment of the internal calibration.
Notes: Calibration may be locked out to prevent unauthorized personnel from changing calibration. If calibration has been locked out, you
can access Cal Test and AutoCal.
Before beginning calibration, have masses available. Masses required for calibration are listed in the table in this section.
To navigate the calibration menu, proceed as follows:
Press the Yes button to select the sub-menu selection.
Press No to advance to the next sub-menu selection.
press Back to go to previous sub-menu selection.
Press Exit to return to applicable mode.