|Reliable measurement for materials on the move
When it comes to cementitious materials, there’s a lot riding on conveyor belts. Users count on conveyors to effectively feed bulk aggregates to and from production processes. A reliable belt-weighing scale system and accurate mass flow rate ensures smooth, efficient plant operation. The WeighTrac 31 keeps material moving.
How it works
When the total mass per square foot on the belt or screw conveyor changes, the amount of radiation reaching the detector changes inversely. The greater the mass on the belt, the lower the radiation field at the detector. Conversely, the lower the mass on the belt, the higher the radiation field at the detector. The amount of radiation seen at the detector is thus inversely proportional to the amount of material on the conveyor, and this value is translated into an output signal from the detector.
Radiometric mass flow measurement technology has proven very reliable because it operates without touching the material. Non-contact measurement systems like the WeighTrac 31 are nearly invulnerable to the vibration common to conveying applications, and radiometric measurement is unaffected by temperatures up to 140° F (60° C). Electronics are typically built into the instrument to compensate for additional variables such as belt or screw speed, and to convert the measurement into a total weight or a weight-per-time period output.