Strain Gage Type Compression Load Cell Installation Procedure

Encardio rite Model ELC-210 Compression load cell is designed for the measurement of loads or forces and finds its application in load measurement in struts. The load applied to the cell can be measured by using any standard digital read-out unit suitable for resistance strain gage applications.
Let’s look at the compression load cell installation procedure:-

Introduction to Compression Load Cell

The interior of the load cell is constructed in a columnar manner. The element of the instrument is made from martensitic stainless steel and hardened to provide improved linearity and hysteresis.

The strain gauge used in the instrument is foil type bonded to the elements using a block of special epoxy cement. The sectional area of the columnar construct of the load cell diversified in the different capacity load cell to yield the same mV/V output for a zero to full load.

Using an electron beam welding machine, a cover with glass to metal seal is welded to the element, making the load cell hermetically sealed.
As the load cells are very sensitive to eccentric loading, a top plat of suitable dimension is used to reduce the effect. In some cases, a bottom plate may also be used.

Cable connection

The cable from the Wheatstone bridge circuit ends on a small printed circuit board (PCB) with the help of a six-pin glass to metal seal in the cable holder assembly. No-load output balancing, temperature compensation and full-scale output balancing are done on the PCB.

A suitable four core shielded cable is terminated through a cable joint housing and …[Continue Reading]