The stationary auger sampling system, using a processor-based control system designed by James A. Redding Company, can be a completely automated sampling operation which is housed in a single structure. The truck's weight ticket includes supplier information and truck type. A laser scanner reads the weight ticket and randomly selects a position for the auger to extract a sample from the truck. Traffic signals in the sampling bay direct the truck to the selected position, using ultrasound and photoelectric sensors. The fixed auger descends to extract a sample and then retracts.
This primary augered sample is crushed, re-sampled and the final sample is deposited in the assigned sample container for that particular supplier. Sample rejects can be handled in a variety of ways. The procedure varies with type and size of the auger and the materials being sampled.
