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說明
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A PM10 high volume air sampler is a federal reference method (FRM) instrument designed to collect ambient particulate matter with an aerodynamic diameter of 10µm or less. This sampler uses a size selective inlet to separate out the particulate matter that is larger than 10µm, ensuring that only concentrations of PM10 are deposited onto the filter. These samplers typical operate with a flow rate between 36-60 ft³/min during a 24 hour sampling period. Constructed of high quality components and a robust anodized aluminum shelter, these instrument are well suited for all ambient sampling installations. Tisch Environmental’s PM10 high volume air samplers are designed according to the guidelines that are outlined in 40 CFR appendix J to part 50 and designated as a federal reference method sampler under designation number 0202-141.

The PM10 high volume air sampler collects particulates at a flow rate between 36-60 ft³/min through a PM10 size selective inlet. As the particulates travel through the size selective inlet, the larger particulates are trapped inside of the inlet as the smaller PM10 particulates continue to travel through the PM10 inlet and are collected on the 8″ x 10″ quartz filter paper. This quartz filter is weighed previously to sampling and then after sampling to determine the mass of particulates that are smaller than 10 microns. The flow rate on this instrument is controlled by either a mass flow controller, a volumetric flow controller or the Tisch Environmental PLUS technology electronic flow controller. Tisch Environmental offers a wide range of PM10 samplers with several different option to fit every custom sampling installation.

Flow Controler	Manual Flow Controlled: Manual adjusted motor speed controller.
	Mass Flow Controlled(MFC): The Mass Flow Controller uses a hot wire anemometer to maintain a steady flow rate throughout the sampling period. The hot wire anemometer is inserted into the flow channel and detects changes in thermal mass to increase or decrease the motor speed.
	Volumetric Flow Controlled(VFC): The VFC controller is a critical orifice with a predetermined hole diameter. The critical orifice is calibrated in a NIST traceable lab to determine the volumetric flow rate. The motor runs wide open and as air passes through the critical orifice,the sampler runs at a predetermined flow rate
	PLUS Technology (MFC): The PLUS technology MFC uses ambient temperature, ambient pressure, and a hot wire anemometer to maintain the set flow rate. This is the most accurate flow controller available. It also features an auto calibration function and
	PLUS Technology (VFC): The Plus Technology volumetric flow controller uses a combination of the critical orifice and the PLUS controller to calculate the ambient flow rate. The system uses the temperature, barometric pressure, and orifice pressure to calculate and record the ambient flow rate. The system also includes a digital timer.

Motor Type	Brush Style Motor: Brush Style motors use carbon motor brushes to conduct current within the electric motor. They are low cost but require routine motor brush changes.
	Brushless Style Motor: Brushless motors do not use motor brushes or require maintenance. They are higher in cost and do not have any emissions.

Timer Style	7-Day Mechanical Timer: Recognized by its bright yellow timer dial, the 7 day mechanical timer uses a series of on/off trippers to set the sampling schedule.
	Digital Timer: Recommended by the US EPA, the digital timer allows for 1 in 3, 1 in 6, 1 in 7, and custom sampling schedules. Its internal battery backup ensures that the timer will not have to be reset after a power failure. It also includes an LCD screen and soft press buttons for easy use.

產品介紹

PM10高量採樣器 PM10 High Volume Air Sampler

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