Ohaus CD-33 Indicator - Manual (Page 28)

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CD Indicators
4.1 Calibration
Model CD-31 and CD-33 Indicators offer a choice of four calibration methods: Span, User, Linearity, and CalTest TM .
• Span - Span calibration ensures that the Indicator reads correctly within specifications using a
weight value of 100% of capacity.
• User - User calibration is a method where the Indicator can be calibrated using a mass between 10%
and 100% of capacity and by entering that numeric value into the Indicator.
• Linearity - Linearity calibration minimizes deviation between actual and displayed weights within the
Indicator's weighing range. Three weight values are used: zero, a weight value at or near
midpoint and full scale.
• Cal Test - User may enter calibration test point by entering that numeric value into the Indicator.. The
difference in weight is indicated.
• Lock - Can be set on or off. When set on, Span, User and Linearity are locked out and cannot be
used.
4. OPERATING YOUR INDICATOR
Calibration Menu Protection
NOTES:
• Calibration may be locked out to prevent unauthorized personnel from changing calibration. If calibration has been
locked out, you can only access Cal Test.
• To lock out calibration menu, after calibration, refer to the section titled paragraph 3.12, Menu Lock-Out Protection.
Calibration Masses
Before beginning calibration, make sure masses are available. If you begin calibration and realize calibration masses
are not available, exit the menu. The Indicator will retain previously stored calibration data. Calibration should be
performed as necessary to ensure accurate weighing. Masses required to perform the procedures should be in
compliance with the requirements of the scale base being used with the Indicator.
NOTE:
Any of the calibration modes can be terminated
at any time by pressing either the Mode, Units or Setup buttons.