NMTHC FID Vocs Gas Analyzer CEMS Monitoring System For Non Methane Total Hydrocarbon
>>Overview
Used for real-time online monitoring of volatile organic compounds (VOCs) emissions from industries such as petrochemical, painting, injection molding, coatings, textile, electronics, and automobile manufacturing.
The system uses a high-temperature-resistant diaphragm pump to extract exhaust gas, which is then pre-treated for dust removal before being sent to the gas chromatograph for analysis. By combining catalytic oxidation and FID principles, it can quickly and effectively obtain monitoring data.
>>Feature
1) Uses catalytic method with minimal background interference, fast analysis cycle, and quick real-time data response.
2) High detection sensitivity and low resolution.
3) High catalytic efficiency and long lifespan.
4) Fully automated system design with fault alarms for easy maintenance and repair.
>>Main technical parameters
| Items |
Parameter |
| NMTHC Monitoring Unit |
NMTHC |
(0-100)Mgc/m3,OEM |
| O2 |
(0-25)% |
| Repeatability |
≤2% |
| 24-Hour Zero Drift And Range Drift |
≤±2%F.S. |
| One Week Zero Drift And Range Drift |
≤±3%F.S. |
| Linearity Error |
≤±2%F.S. |
| Analysis Cycle |
≤120s |
| Flue Gas Parameter |
Temperature |
Range |
(0-300)ºC,OEM |
| Accuracy |
≤±3ºC |
| Pressure |
Range |
(-2.5-2.5)Kpa |
| Accuracy |
≤0.5% |
| Velocity Of Flow |
Range |
(0-40)m/s,(0-2)Kpa,Optional |
| Accuracy |
≤±5% |
| Humidity |
Range |
(0~40)Vol% |
| Accuracy |
±2% |
| Data Acquisition And Processing Unit |
Data Transmission Module |
8 Way Analog Input |
| 1 Way Rs485 |
| Ipc |
6 Way Rs232 |
| Windows7 |
| Software |
Vocs Monitoring Software V3.0 |
| Power Supply |
Ac 220V,50Hz,≤7Kw |
>>System composition

