FP Belt Scale

"FMSS" Scale Technology

A Force Measurement Suspension System (FMSS) is the arrangement of active mechanical elements interposed between the load receptor (platform, hopper, belt) and load cell. Properly designed, the FMSS functions as a force vector filter that permits the sum of the chosen uni-directions force components to pass through the system to the load cell while blocking all other nuisance, erroneous or destructive force vectors. Flexure plate systems eliminate all wearing parts, such as bearings, pivots and knife edges, and is not susceptible to vibration. Flexure suspension system transfers to a single load transducer, which accurately measures load regardless of load position. Most platform scales are not designed to be immune to side loading and/or tortional loading caused by the plant environment and by the movement of the belt. These factors can cause poor accuracy and poor calibration stability. The Thayer flexure system cancels all horizontal force vectors and also tare loads to be completely mass counter balanced, permitting load cell sizing based on net rather than gross weight.

The Thayer "FP" Belt Scales is a unique and patented weighing scale specifically designed to accurately weigh "low density" materials. It can be used in new installations or can be seamlessly integrated into an existing flat or trough idler conveyor belt conveyor. Its design has some very unique advantages:

• Can be either scale "over" or scale "under" design depending on available space on the conveyor belt. Flat horizontal belt or flat incline belt.
• Measures only vertical forces-therefore is not affected by changes in idler friction
• Weight sensing system is totally enclosed and requires no maintenance.
• Flexure Plate lever system eliminates all wearing parts (such as bearings, pivots, or bushings) and is not susceptible to vibration.
• Weight transducer is located out of the material handling area and is not affected by, dust, corrosion or heat produced by the material.
• Cantilevered suspension system permits easy removal of belt.
• Force aligned to totally eliminate the effects or changes in belt tension caused by head loading or belt tracking.
• Weight sensing lever system is a summing lever so the load (weight) is measured accurately, regardless of belt tracking or load position
• Weight signal represents only the material load; the dead load (belt and idlers) is completely mass counter balanced.