Introduction In pulverized coal injection systems used by the iron and steel industry, a bag filter separates pulverized coal from hot air. The pulverized coal is then conveyed to a storage tank and the hot air is discharged to the atmosphere. If the bag filter breaks, pulverized coal leaks out into the atmosphere. In order to prevent air pollution, bag filter leaks must be detected quickly. Designed for this purpose, the DT450G Dust Monit

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