The Thermo Scientific High Volume Air Sampler VFC-PM10 is a volumetric flow controlled system for PM-10 measurement.
Product Detail
Utilizes a volumetric flow controlled system for sampling large volumes of air for the collection of particulate matter less than 10 micrometers.
The VFC-PM10 Sampler is supported by a protective shelter ensuring that the surface of the filter rests in a horizontal position. This aerodynamic design allows for the collection of particles at 10 micrometers and less.
The flow controlled principle, when applied to a high volume air sampler, incorporates a smooth-wall Venturi orifice that gradually opens to a recovery section. The vacuum, which is provided by a motor downstream of the Venturi, is capable of recovering over 95% of energy lost in differential pressures across the restricting orifice as compared to other high volume air samplers.
• US EPA FRM designated for determination of suspended
PM-10 particulate concentrations (RFPS-1287-063)
• Well-documented, smooth-wall Venturi orifice
• Aerodynamic design recovers over 95% of energy
lost in differential pressures
• Distinctive "choking" characteristic
• Regulates flow while eliminating moving parts
and electronic components
• The critical flow is achieved once the air velocity of the flow
tream is equal to the acoustic velocity or speed of sound
• All conditions of the Venturi, including the flow rate, are
determined by upstream conditions, provided the
downstream changes remain minimal
• This condition, of downstream restriction thus accelerating
air flow through the Venturi, is a distinctive characteristic
known as "choking"
• The critical flow through the Venturi orifice, as powered by
the sampler blower motor, is unaffected by filter loading,
ambient temperature or barometric pressure and is capable
of maintaining a stable, volumetric flow rate
• Motor: 1.0HP
• Amperage: 7.0
• Wattage: 840
Includes:
• Blow blower motor assembly
• Filter holder
• Volumetric flow controller
• Timer
• Anodized aluminum shelter
Ideal for:
• State and city networks
• Industry consulting
• Painting of bridges
• Filter based sample collection for lead analysis
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