APM 550 Specification

Size Selective inlets

Omni-directional air inlet with PM 10 separation through an impactor followed by PM 2.5 separation through a WINS Impactor

Flow Rate

Constant sampling rate of 1 m3/hr unaffected by voltage fluctuation and filter choking maintained by critical orifice system

Vacuum Pump

Oil Free, non-pulsating pump driven by induction motor for stable flow rate

Power requirement

Nominal 220 V, Single Phase, 50Hz AC mains supply. For proper operation and safety a good earth connection is mandatory

Sample Volume

Dry Gas meter records the total air volume sampled


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


One year