Mettler Toledo LJ16 Spécifications télécharger pdf (Page 45)

Chapter 5: General Installation Guidelines

Applying Force to Load Cells

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5-3

Eccentric Loading

Eccentric loading occurs when a vertical force is applied to a load cell at a point

other than its center line (see Figure 5-4). This problem can be caused by thermal

expansion and contraction or by poorly designed mounting hardware. You can

avoid eccentric loading problems by using a weigh module system that will

compensate for expansion and contraction.

Figure 5-4: Eccentric Loading

Side and End Loading

Side and end loading occur when horizontal forces are applied to the side or end

of a load cell (see Figure 5-5). They can be caused by thermal expansion and

contraction, by misalignment, or by vessel movement due to dynamic loading.

Side and end forces can affect the linearity and hysteresis of the scale. For static

loading applications, use a weigh module system that compensates for thermal

movement. For dynamic loading applications, use a weigh module system with a

self-aligning load pin suspension.

Figure 5-5: Side and End Forces Applied to a Load Cell

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Mettler Toledo LJ16 Spécifications Page 45