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Your location: Home > Related Articles > Interpretation of the principle of the online monitor of total non-methane hydrocarbons

Interpretation of the principle of the online monitor of total non-methane hydrocarbons

Author:QINSUN Released in:2023-06 Click:121

The Total Non-Methane Hydrocarbons Online Monitor uses the β-ray absorption method that meets US Environmental Protection Agency and national standards, combined with mature sampling technology and atmospheric particle enrichment, to measure the mass concentration of PM2 .5 particles (PM10/TSP) in the atmosphere.

Simple and reliable mechanical structure design and modular design concept ensure the long-term stable operation of the instrument, making online monitoring of particle mass concentration simple and reliable!

The online monitor of total non-methane hydrocarbons is fully heated by pipe, with higher heating efficiency and faster speed;

It can adapt to sudden changes in weather conditions, Chinese and English operation interface,graphical display, built-in self-test and diagnostics, can store more than six months of data volume; Only one calibration check is needed;

Backing paper-saving mode, no need to replace filter paper for more than two years, with RS232/485, Ethernet and others external interfaces;

It can realize remote transmission and monitoring of operating parameters, status and data. The 19-inch international standard chassis design can be easily installed on a standard cabinet.

Total Non-Methane Hydrocarbons Online The working principle of the monitor:

Use of ultraviolet (UV) light source breaks down the compound into positive and negative ions which can be detected (the process is ionization);

The detector measures the ionized gas charge and converts it into an electric current The signal, then the current is amplified and converti into a concentration value.

After being detected, the ions recombine into the original gas or vapor, which is a non-destructive detection method for total hydrocarbons non-methane.

This system adopts the extraction method to extract the gas to be tested from the exhaust stack. The concentration of total hydrocarbons.

Application areas of online non-methane total hydrocarbon monitor:

1. Monitoring the quality of the \'air

2. Analysis of the characteristics of particles in the air

3. Measurement of the atmospheric background

4. Environmental Assessment and Permits

5. Pollution Prediction and Early Warning