Dillon ED-2000plus Посібник користувача - Сторінка 18

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Appendix - Weighing and Force Measurement Practice

Load Centering

Good Pin Fit

Torque and Bending

Certified Gear

Safety

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 estab-

lish a few basic rules, otherwise the effect may be a nonlinear or

nonrepeatable response. Read and follow these tips and see the illustrations

on the next page.

For accurate performance the force

acting on the unit must be in line with

the unit. Centering the load is accom-

plished by using the shims on each side

of the load cell so that it is centered on

the shackle pin. See the illustration at

right. The 20, 50, and 100 Klb

ED-2000plus also include spacers

supplied with shackles.

A good fitting pin is important in order to

generate an even stress distribution and

avoid yield stresses. The ED-2000plus

are designed with the recommended

shackle pin hole sizes for the Crosby

shackle capacity. To achieve published

accuracy you must use the shackle

pins and centering spacers provided by

Dillon.

Torque and bending should be avoided.

Use swivels on the lifting wire for

antitorque and avoid side forces.

Certified shackles and lifting gear

should always be used in accordance to

local laws and federal legislation.

Safety is always a concern in overhead lifting and tensioning applications. To

limit your liability always insist upon factory supplied shackles and pins and

factory tested and certified safe optional equipment. All DILLON products are

designed to meet the published Safe Working Load (SWL) and Ultimate

Safety Factor (USF) standards of the United States Military.