HT8700™ Open-path NH3 Analyzer

        HT8700 is based on the state-of-the-art Quantum Cascade Laser Absorption Spectroscopy (QCLAS) technology. The product relies on the laser beam’s multiple reflections between two high-reflection mirrors exposing to the atmosphere, creating an effective optical path-length of several tens of meters. The weak absorption of the laser energy at the spectral peak is extracted from the noise using phase-sensitive lock-in amplification of the modulated laser wavelength/amplitude signal. The trace gas concentration is retrieved based on HealthyPhoton’s innovative absorption spectral characterization algorithm.

      HT8700 can be used for Eddy Covariance Flux studies. It can accurately quantify the net exchange flux of atmospheric ammonia in various ecosystems.



  • Details

Features and Benefits

Open Path, Ultra-sensitive, and Fast Response 

Ultra-sensitive NH3 density measurement using laser spectroscopy.

No pump required, no time delays or attenuation from adsorption on the tubing.

Fast response for large NH3 concentration change.


Portable Design for Versatile Field Deployment

- Strong environmental adaptability and vibration resistance.

Enhanced carbon fiber spars that minimize drift.

Heated mirrors that avoid signal loss due to condensation.


Remote Field and Mobile Measurement

- Low power that can be supplied by a solar panel or battery.

Light weight, easy installation and maintenance in remote  field or on a vehicle.



 Specifications

 Detection Technology

 QCLAS

 Optical Path

 0.5m physical path;

 46m measurement path

 Resolution (1σ; 0.1s/1s/10s)

 0.3 ppbv/ 0.17ppbv/ 

 0.03ppbv

 Measurement Range

 - 2000 ppb (other 

 ranges are optional)

 Output Data Rate

 10 Hz

 Operating Pressure

 70 - 110 kPa

 Operating Temperature

 -15°C ~ 45°C

 Operating Humidity

 0 ~ 100% R.H. Non 

 condensing

 Data Communication

 RS-232

 Power Requirements

 20 - 28 VDC

 Power Consumption

 Nomina50 W (~100W 

 at warming up )

 Dimensions

 834 mm × ø200 mm

 Weight

 < 10kg

 Environmental  Adaptability

 IP67


Docs
  • Raw Data: HT8700E™ Ammonia Flux

  • Model:HT8700E™ Open-path NH3 Analyzer

    HT8700E™ Open-path NH3 Analyzer
Applications

Contact us for more infomation!

Tel:156-1892-2826

E-mail:info@healthyphoton.com

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