
Product Introduction:
Instrument characteristics
NMHC-2 (Non Methane Total Hydrocarbon Detector, TVOC Detection) is designed to meet the current requirements of the domestic environmental protection industry for air quality testing. According to the "HJ/T38-1999" standard, based on the laboratory non methane total hydrocarbon chromatographic analyzer, our company's oilfield logging is adopted、A new product developed independently based on the technology of online analysis of mine gas, integrating advanced experience in the same industry at home and abroad. This product achieves the strongest practicality and highest cost-effectiveness according to the specific requirements of users, while meeting various performance indicators.
Instrument performance
- Adopting a high-sensitivity FID detector.
- Unique column switching and combination technology, advanced modular amplification systeminstrumentThe circuit is highly integrated and designed modularly, with extremely high operational stability.
- On the basis of implementing full reverse control function, real-time display of various data spectra.
- Fully automatic ten way valve online real-time injection, dedicated chromatographic column, fast analysis speed, Peak appears in 25 seconds and ensures no residue in the sample, with a wide analytical range (linear range up to 10)7)
- The instrument has power on self-test, power-off protection, automatic restart, and automatic ignition、Various functions such as automatic calibration ensure high sensitivity, stability, and repeatability of the entire instrument.
- The automatic sampling system can be connected to various ways of sample input, and the data processing system can be integrated with various central control systems The data transmission module of the system is connected to ensure real-time sampling, remote control, real-time transmission, and implementation Produce results in a timely manner.
Technical Parameter
project |
Indicator parameters |
Monitoring capability |
Methane, non methane total hydrocarbons, volatile TVOC |
range |
Methane (0.1-10000) ppm (v/v) Non methane total hydrocarbons (0.04-10000) ppm (v/v) |
detector |
High sensitivity hydrogen flame ionization detector (FID) |
detection limit |
≤ 0.1ppm (methane) (v/v) ≤ 0.04ppm (v/v) (non methane total hydrocarbons) |
repeatability |
RSD≤2% |
Analysis cycle |
≤40S |
Power supply |
<300w,220V AC/50HZ |
work environment |
Temperature (5-50) ℃ Humidity (10% -90%) RH% |
output |
4-20mA RS232/RS485 Ethernet |
Typical spectrogram