Particle Measuring Systems offers its Model 7400 Series of compact aerosol particle counters, which can be used as either stand-alone instruments or as part of a multisensor system. Five models are available in minimum sensitivities of 0.3 µm or 0.5 µm at sample flow rates from 0.1 or 1.0 cfm. As standalones, they can be used for cleanroom classification and testing of HEPA filters. Other applications include component cleanliness testing and leak-checking of installed filters. As a multipoint monitor for Class 10 and above cleanroom environments, the 7400 Series utilizes multidrop communications with RS485 capabilities to make small systems more affordable. All units feature a large, easy-to-read LCD display that depicts concentration values for two size channels simultaneously or total particle counts. A thermal printer and built-in pumps are options which can provide extra convenience to users who require an all-in-one sensor.
Particle Measuring Systems