Nitrogen dioxide analyzer AQMS-700
for ambient airlaboratoryconcentration

nitrogen dioxide analyzer
nitrogen dioxide analyzer
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Characteristics

Measured entity
nitrogen dioxide
Application domain
for ambient air, laboratory
Measured value
concentration
Configuration
benchtop
Technology
optical
Other characteristics
real-time, high-performance, simultaneous, cost-effective, data acquisition

Description

AQMS-700 CAPS NO2 analyzer is an atmospheric environment monitoring instrument based on the optical cavity attenuation phase shift technology (CAPS) which can directly measure the NO2 concentration in the ambient air and is widely used in the online monitoring of the NO2 content in the ambient air quality monitoring scene. The analyzer is mainly composed of pre-processing module, resonant cavity module, flow control module, circuit module, etc., and will measure the gas concentration according to the phase difference between the beam in the reference cavity and the cavity with NO2. The LED beam is modulated by high frequency signal and coupled into the optical cavity composed of high-reflection mirror. Then, beam is reflected repeatedly in the cavity and is absorbed by NO2 in the cavity. The absorbed beam is collected by the detector after passing through the optical cavity and the optical filter. The detector converts the optical signal into electrical signal, then demodulates it by electrical heterodyne method, and finally obtains the signal with phase information. Product features • Adopt ultra-high reflector, low detection limit; • Direct measurement, without reagent or catalytic conversion, low maintenance; • Strong anti-interference ability; • Simple structure and parts; • Strong system stability, low power consumption; • Fast response time; Application area • Atmospheric background station, urban environment and other conventional monitoring; • Laboratory ultra-high requirement monitoring; • NO2 concentration monitoring in special areas such as hospitals;
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.