Dillon EDjunior (Old) - Manual (Page 20)

20 EDjunior Dynamometer User Instructions
8 Weighing and Force Measurement Practice
The basis for all electronic force measurement or weighing is measurement of stress
in a loadcell body. To obtain optimal results it is necessary to establish a few basic rules,
otherwise the effect may be a nonlinear or non-repeatable response. Read and follow
these tips and see the illustrations on the next page.
8.1 Load Centering
For accurate performance the force acting on the unit must be in line with the unit.
8.2 Alignment
Insure shackles are oriented parallel with the instrument. Apply load in the center of the
shackle bow.
8.3 Proper Pin Fit
A proper fitting pin is important in order to generate an even stress distribution and
avoid yield stresses. To achieve published accuracy you must use the shackle pins
provided by Dillon.
8.4 Torque and Bending
Torque and bending should be avoided. Use swivels on the lifting wire for anti-torque
and avoid side forces.
8.5 Certified Gear
Certified shackles and lifting gear should always be used in accordance to local laws
and federal legislation. Insure all hardware, fittings and line used to sustain the load are
properly sized and rated for the installation. Have the system evaluated by a qualified
engineer if any question or uncertainty exists.