In response to the high water vapor content, high concentration, and complex working conditions of organic waste gas, a 175 ℃ high-temperature heat tracing sample transport and dual valve dual column single hydrogen flame ionization detector (FID) technology are used for the detection of methane/non methane total hydrocarbons. Under the action of the sampling pump, the sample is filtered through the built-in filter and collected into the quantitative ring. The sample in the quantitative ring is sent to the total hydrocarbon column and methane column for separation through the action of the carrier gas. The total hydrocarbons and methane are sequentially detected by the FID detector; By switching the valve position, the non methane total hydrocarbons in the methane column are blown back out of the chromatographic column. One cycle analysis can obtain the content of methane, non methane total hydrocarbons, and total hydrocarbons.

Adopting dual tube quantitative method, the system is concise and clear, obtaining results in one go for total hydrocarbons, methane, and non methane total hydrocarbons;
High temperature tracing throughout the chromatographic system effectively reduces sample loss and ensures more accurate measurements (pre-treatment systems also require full temperature tracing);

1. Adopting dual tube quantitative method, the system is concise and clear, and the total hydrocarbons, methane, and non methane total hydrocarbons can be obtained in one go;

2. High temperature tracing throughout the chromatographic system effectively reduces sample loss and ensures more accurate measurements (pre-treatment systems also require full temperature tracing);

3. The FID detector flame adopts a car ignition design (with a high temperature resistance of 1100 degrees and no occurrence of ignition wire short circuit or breakage), with a maximum ignition frequency of 10000 times. It is equipped with an automatic shutdown of hydrogen gas function to effectively maintain the safety of the system;

4. The overall design adopts a modular approach, effectively avoiding interference between circuits, gas paths, and thermal chambers;

5. The core components are made of imported materials, effectively ensuring the overall airtightness and high reliability of the system;

6. The entire pneumatic system adopts a fixed flow design, and instrument debugging work can be completed without the need for professionals;

7. Rapid monitoring: Test time less than 90 seconds;

Detection capability: methane, non methane total hydrocarbons, total hydrocarbons

range：Methane (0.1-1000) ppm; Non methane total hydrocarbons (0.05-100) ppm/(1-1000) ppm

detector：Hydrogen Flame Ionization Monitor (FID)

detection limit：0.1ppm (methane), 0.05ppm (non methane total hydrocarbons)

repetitiveness：RSD≤3%

analysis cycle：≤90s

power supply：＜800VA,220V AC/50HZ

Working environment temperature: (5-35) ℃, humidity: (20% -90%) RH

Gas source requirements: carrier gas: high-purity nitrogen or zero grade air (>99.995%); Gas: high-purity hydrogen, auxiliary gas: zero grade air

output：4-20mA、RS232/RS485、 Ethernet

size：19 inch standard chassis