Method for obtaining measurement result for gravimetric batch scales in vacuumed batch mixing plants, involves utilizing plant air pressures acting on balance container in order to perform real-time time correction of measurement result

摘要

The method involves utilizing relative batch mixing plant air pressures acting on a balance container in order to perform a real-time time correction of a measurement result by analog electric signals with an assistance of an analog electronic circuit and by digital values with an assistance of a computer program such that a real time measurement result for an actual amount of material present in a scale. The plants air pressures are measured with two pressure transmitters. Measurement signals of load cells are corrected by using the measured air pressures.