APM 550M Specification

Particle Size

Omni-directional air inlet with PM10 separation through an impactor followed by PM2.5 separation through a WINS impactor.

Sampling Rate

Constant sampling rate of 1 m3/hr, unaffected by voltage fluctuation maintained by critical orifice system.

Filter Media

Filter holder designed to accept any standard 47 mm diameter filter media.

Sample Volume

Independent Rotameters for PM 10 & PM 2.5 flow streams. Time Totalizer records the period of operation

Power Requirement

Single phase AC 220 volts, 50 Hertz supply. Sampler unaffected by +/- 10% fluctuation in supply voltage


One year