F9301 low-concentration dust meter verification device

Purpose
It is used for the verification and calibration of low-concentration dust measuring instrument/PM2.5 mass concentration measuring instrument.
Meet and comply with the following regulations
●JJG846-2015 "Verification Regulations for Dust Concentration Measuring Instruments"
●HJ618-2011 "Determination of PM10 and PM2.5 in Ambient Air: Gravimetric Method"
●HJ93-2013 (for PM10 and PM2.5) "Technical Requirements and Testing Methods for Ambient Air Particulate Sampler"
●JJF 1659-2017 "PM2.5 Mass Concentration Measuring Instrument Calibration Specification"

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Detail

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principle

This device is composed of aerosol generator, mixing system, flow reference and concentration calibration system. It uses the aerosol generation system to provide a quantitative supply of test particles, and uses uniform dilution, diffusion, stabilization, etc. to transport aerosols with a set concentration, and adopts aerosol photometer mass concentration standard device (reference photometer) or filter film to weigh Law as a traceability method.

Technical Parameters

project	parameter
Concentration occurrence range	(0.01～30)mg/m³
Use dust	ISO test dust
Uniformity	≤5%
Center point stability	≤5%
PM2.5 cutter	Meet the calibration requirements
Sampler working point flow	16.67L/min, flow meter detection accuracy 1%
Membrane sampling	Small flow TSP/PM10/ PM2.5 sampling head, filter membrane specification φ47mm
Dust treatment	Replaceable air conditioning filter
Reference Size	1800mm (length) × 1600mm (width) × 3500mm (height)

Test items

·The control system adopts industrial control computer and PLC, with wide control range, high precision, and data acquisition and analysis.
·The control interface adopts capacitive touch display + window genuine operating system, which is convenient and flexible to operate.
·Independent dust aerosol generating unit, with manual/automatic two control modes, can be independent control or integrated control.
·The generated dust aerosol has a wide range of concentration, high accuracy, fast response speed and good stability.
·With weighing calibration function, wide application range

Scan the QR code to read on your phone

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