Principle

The measurement principle of high-precision laser absorption spectroscopy is based on the absorption of light of a specific wavelength by the detected molecule.

Use laser diode light sources of different wavelengths according to the gas molecules, and then measure the intensity of the transmitted light (I) and incident light (I0) at the detector (Lambert-Beer law) to know the current gas concentration measurement chamber.

MZD uses proprietary technology-enhanced TDLS for gas detection, where a 0.05 nm narrow bandwidth diode laser beam scans across an absorption band of the target gas,  performing a high-resolution near-infrared absorption measurement. 

Direct physical measurements

Selective and continuous measurements in the spectral range from visible to MID-IR

Real spectroscopy (no measurement of auxiliary parameters)

No cross-sensitivity

Narrow-band tunable laser source ensures highest selectivity for the gas to be measured By selecting the ideal absorption line, other gases do not influence the measurement

Small number pectral correlation check

A continuous comparison of the measured and theoretical spectra is done and visualized as "spectral correlation".

It helps the user to see if his measurement results are reasonable.

No condensation, fast response time, low adsorption effect

Due to the pressure and temperature stabilization the measuring chamber operates under vacuum and (due to the correspondingly lower dew point) prevents the formation of condensate. The high (adjustable) flow rate, as well as the vacuum, speeds up the response time and minimizes adsorption and delay effects.

Lowest operating costs

No consumables are required to operate without calibration of gases, chemicals or replacement of maintenance parts. 

Application

• Environmental and Process Measurement Technology (CEM)

• Industrial gas analysis 

• Natural gas/biogas analysis 

• Process measurement technology 

• Biogas research

Features

• Linearity error: ±1 % F.S

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

• Fast response time, t90 < 1 s possible 

• 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

• Optional mass flow measurement and controller

• 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 EExd II CT4 Optional

Measurement components and ranges

• HCl:          0 ~ 10 up to 500ppm

• CH4:         0 ~ 100ppm up to 4%

• C2H2        0 ~ 100 up to 500ppm

• C2H6:       0 ~ 1000ppm

• H2O:        0 ~ 30%

• Others

Product datasheet: Laser spectroscopy analyzer , if you need more information, please contact us at info@mzdd.de.

Environmental and Process Measurement Technology (CEMS), HCl Analyzer, NH3 Analyzer, H2O2 Analyzer