overview

As early as 1991, AGCO in the United States pioneered the use of photoelectric aerosol sensor technology to monitor polycyclic aromatic hydrocarbons (PAHs) adsorbed by aerosols in real time. The American Aiko polycyclic aromatic hydrocarbon analyzer uses a more efficient UV excimer lamp than traditional UV lamps. The excimer lamp can be quickly switched on and off without any time delay, allowing the excimer lamp to be in chopping mode and eliminating the offset caused by pre charged particles. The AGCO polycyclic aromatic hydrocarbon analyzer from the United States is widely used in management, research, and industrial institutions due to its lightweight and durable design, wide range and high sensitivity, and powerful data acquisition and storage capabilities.

application area

Environmental air monitoring:

Outdoor environmental air monitoring: parking lots, traffic intersections, and highway tunnels, etc

Indoor air quality monitoring (for homes, offices, etc.): kerosene heaters, fireplaces, and cigarette smoke, etc

Environmental monitoring of industrial workshops producing PAHs

Monitoring of PAHs generated under special circumstances: forest fires, burning of used car tires, agricultural burning

Monitoring of Industrial Pollution Source Emissions:

Burners, refinery heating furnaces, industrial boilers, furnaces

Municipal emissions and medical waste incinerators

Emissions from diesel and gasoline vehicles

Industrial process emissions: coke oven, petroleum catalytic cracking processing, steel casting, aluminum and carbon black manufacturing

typical characteristics

Real time continuous detection of polycyclic aromatic hydrocarbons (PAHs) adsorbed by particles using excimer lamp technology

Can respond to ultrafine particles that can be inhaled into the human body as carriers of PAHs

Signal and particle adsorption of polycyclic aromatic hydrocarbons (PAHs), elemental carbon (EC), and other smoke black measurement techniques

High sensitivity within the range of ng/m3 to mg/m3

Simple, reliable, durable, and proven reliable technology

Automatic operation, saving labor. Can store up to 8000 data points

Configuring a specialized dilution sampling system for industrial pollution source emission monitoring

measuring principle

When the aerosol flow is exposed to UV radiation from the excimer lamp, the excimer lamp provides a high-intensity, narrowband UV radiation source. The excimer lamp selectively provides the wavelength of UV radiation, so only aerosol particles that adsorb PAHs are ionized, while gas molecules and non carbon aerosols are not charged.

Carbon aerosol particles with PAHs molecules adsorbed on their surfaces emit electrons. By applying an electric field, all negatively charged particles are safely removed, while the remaining positively charged particles are collected on a filter inside a Faraday cage. Here, the charge is measured by an electrostatic meter, and the resulting current signal is proportional to the concentration of PAHs adsorbed by the particles.

Technical Parameter

Measurement principle: photoelectric aerosol sensor

Range: 0-100 picoamp or 0-100 μ g/m3 PAH optional

Sensitivity: 0.3-1 μ g/m3 PAH

Low threshold: 3 ng/m3 total adsorbed PAH

Response time:<10 seconds (adjustable)

Display: LCD display, 128 × 64 pixels

Analog output: 0-10V, 0-20mA, or 4-20mA

Data communication: RS232

Sample gas flow rate: Equipped with a built-in sampling air pump, the flow rate is controlled at 2 liters per minute

Operating temperature:+5 ℃~+40 ℃

Power supply: 115VAC/60 Hz and 220 VAC/50 Hz

Dimensions: Height 133mm x Width 236mm x Depth 317mm

Weight: 9Kg

Data storage: 8000 data points (each data point includes: date, time, measurement value)

Software: User friendly graphical software that displays bar charts in real-time and calculates averages.

Data can be stored in multiple formats, such as Excel