DUST COLLECTOR The D.E.M. is a dust emission monitoring device which operates on the triboelectric principle : the airborne particles generate static electricity as they strike the measuring probe, thereby inducing a weak but measurable current. The more numerous the particles, the stronger the current. The D.E.M. is generally fitted in chimneys downstream from the dust filters. + The possible derating of the fan located downstream of the dust collector (ATEX directive) + The quality control of the air reintroduced into work areas and buildings + The follow-up of possible drift allowing to anticipate a failure (with regard to the regulatory control according - February 2, 1998) CHARACTERISTICS + Spot measurements and/or average readings over a programmable period + Alarm threshold adjusted from 0,01 to 50 mg/m3 + Personal identification code secures access to the settings

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