High Pressure Diffuser (HPD III) for Airborne Particle Counters
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High Pressure Diffuser (HPD III) for Airborne Particle Counters - 1

HPD III High Pressure Diffuser Aerosol Monitoring Accessory Reduces the pressure of gases for particle counters operating at atmospheric pressure High Pressure Diffusers (HPDs) have been developed to address the challenge of sampling pressures of 5 – 120 psi, and the possible damage that can result from connecting pressurized air or gas to a particle counter. HPDs reduce the pressure of the gas to near atmospheric pressure by allowing some of the gas to diffuse out of the system, allowing the particle counter’s flow-metering system to function as designed. The HPD III Aerosol Monitoring Accessory is compatible with non-toxic, non-flammable gases such as Clean Dry Air (CDA), argon, nitrogen and carbon dioxide. The higher pressure gases are reduced to a level acceptable to particle counters designed to operate at atmospheric pressure. BENEFITS • Measures gases from 5 to 120 psi (range dependent on model and sample gas) • No external flow meters needed • Low contamination, < 5% of ISO Class 5 cleanliness • Economical monitoring of pressurized gases with atmospheric pressure particle counters • Can be used with Clean Dry Air (CDA), argon, nitrogen, carbon dioxide or other non-toxic inert gases • Seven different versions for 0.1 CFM, 1.0 CFM, 50 LPM, and 100 LPM flow rates No moving parts to wear Connects via male 4-VCR fitting Exhaust filter prevents possible room contamination Mounting clamps supplied Stainless steel construction Nano-ID® NPC10 nanoparticle counter Lasair® Pro particle counter models 310, 350, and 5100 Lasair® III particle counter models 310B, 310C, 350C, and 5100 Airnet® II particle sensor models 301, 501, 510, an

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High Pressure Diffuser (HPD III) for Airborne Particle Counters - 2

HPD III High Pressure Diffuser Aerosol Monitoring Accessory High Pressure (CDA) 25 – 100 psi for 0.1 CFM, 1.0 CFM, 50 LPM flow rates 60 – 100 psi for 100 LPM flow rate 25 - 120 psi for 1.0 CFM flow rate High Pressure (Nitrogen) 22.5 - 98 psi for 0.1 CFM 24 - 98 psi for 1.0 CFM 58 - 98 psi for 100 LPM High Pressure (Argon) 29 - 119 psi for 0.1 CFM 30 - 122 psi for 1.0 CFM 31.5 - 120 psi for 50 LPM 71 - 120 psi for 100 LPM Low Pressure (CDA) 5 – 25 psi for 1.0 CFM and 50 LPM flow rates 20 – 60 psi for 100 LPM flow rate Flow rate Particle size range Temperature range Enclosure: 316L stainless...

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