CellScale BioTester User Manual page 44

7. Using the Jog+ and Jog– buttons, move the actuators
until the spring is carrying a tension that is out of the non-
linear "dead zone" and reaches the appropriate preload.
The current force reading for each axis is displayed in the
lower left of the LabJoy main screen.
For most setups, the spring should be driven to 30% of
the load cell rating i.e. for a 2.5N load cell, a preload of
750mN is specified. However, for the 0.5N load cell only,
a preload of 60% of the load cell rating is required
(300mN). If it is suspected that the load cell is more than
15% out of calibration, contact the manufacturer for
another recommendation for calibration pre-load.
8. Visually verify that the spring is loaded in a stable, horizontal, and in-line position.
9. Click the Run button, wait for calibration to complete.
BioTester User Manual
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