Overview

Ultraviolet photometry analyzer has 2 measuring ranges as ppm or Vol.-%, and can also realize high-precision up to ppb range. It can measure 2 gas components simultaneously by using 2 UV-LEDs. Nitrogen oxides (NO+NO2), hydrogen sulphide(H2S), ozone(O3), sulphur dioxide(SO2) and chlorine(Cl2) can be measured.

Principle

UV-LED radiation is divided into measurement and reference paths by a beam splitter. The reference beam directly reaches the detector, which converts it into a reference voltage value. Using this reference signal, the aging effect of UV-LED can be almost completely compensated. The measuring beam enters the sample cell, and the gas in the sample cell is absorbed by the radiation in it. The absorption behavior is recorded by the measuring detector and used to calculate the gas concentration in the measuring cuvette. 

Application

• Environmental and Process Measurement Technology (CEM)

• Engine development 

• Elemental analysis 

• Industrial gas analysis 

• Natural gas/biogas analysis 

• Process measurement technology 

• Biogas research

Features

• Linearity error: ±0.5%FS or 1 % F.S

• Sensor sample cell: stainless steel with inert coating (inside and outside)

• PEEK cell for corrosive gases (H2S, chlorine) on request 

• High dynamic range, 1:100

• Fast response time, t90 < 1 s possible 

• No water vapour cross sensitivity different to NDIR gas sensors 

• Convenient

    The navigation menu contains 6 languages, which can be operated easily.

• Process safety

    7" large size color LCD touch screen, convenient and safe touch operation and debugging

    Large size screen with red flashing alarm, clearly visible from long distances and in dark areas

    Alarm immediately, safe the process

• Data alarm record

    Real-time data curve display

    Record function for up to 6000 alarms

• Expert calibration function

   Multi-point calibration function up to 9 point

• Powerful self-diagnosis function

    Built-in heartbeat monitoring function and watchdog

    Monitor the status of analyzer and sensors, and promptly remind customers to take necessary maintenance

    High-standard hardware and software security and password protection

• Powerful control function

    High(low) limit control function

    Optional: Timer control(automatic cleaning) function

    Optional: analog PID control function

    Optional: PWM control function

• Flexible fieldbus communication functions for IOT4.0

    Optional fieldbus MODBUS, HART, Foundation Fieldbus FF, PROFIBUS PA, PROFIBUS DP, etc.

• ATEX EEx II CT4 Optional

Measurement components and ranges

• SO2:  0 ~ 50ppm up to 10%(Vol) 

• NO:   0~ 300ppm up to 5,000ppm 

• NO2:  0 ~ 50ppm up to 5,000ppm 

• O3:   0 ~ 10ppm up to 5,000ppm

• Cl2:   0 ~ 500ppm up to 30%(Vol)

• H2S:  0 ~ 100ppm up to 5,000ppm 

Product datasheet: Ultraviolet photometry analyzer , if you need more information, please contact us at sales@trust-control.com.cn .