The PRI-5251 CO2 CH4 N2O H2O analyzer meets the World Meteorological Organization (WMO) greenhouse gas (GHG) observation specifications. It is capable of simultaneous on-line measurement of the three main greenhouse gases (CO2 N2O CH4) and water vapor (H2O) with ppb-level accuracy, and it has a high data acquisition frequency (1Hz). The PRI-5251 is a fully pre-calibrated mid-infrared (MIR) laser spectroscopy gas analyzer that enhances analytical target specificity, resolution, accuracy, and stability through superb absorption of target gases in the mid-infrared (MIR) band. The smaller measurement chamber facilitates higher turnover rates at lower gas flow rates and ensures accurate pressure and temperature control, thus improving the stability of the device and data accuracy; the scientifically solid anti-vibration and shock-proof design ensures that the instrument can be used in various special occasions such as on-board vehicles, aircrafts, ships and so on.
PRI-ECO has been deeply engaged in the field of GHG scientific research and monitoring for 16 years, and has undertaken and participated in major instrument R&D projects granted by the Ministry of Science and Technology, the Chinese Academy of Sciences and the Beijing Municipal Commission of Science and Technology, etc. With excellent instrument R&D, design and production capacity, we are able to provide a wide range of GHG analyzers and spectral isotope analyzers of high, medium, and low precision; and we have accumulated a wealth of experience in providing customers with technical support and systematic solutions, and we are capable of providing scientific, accurate, complete, and systematic solutions for the evaluation of the effectiveness of the "Double Carbon" campaign.
Technical Principle
Mid-Infrared Laser Direct Absorption Spectroscopy (MIRLAS)
Product Advantages
- Simultaneous high-precision measurement of 4 gases with one analyzer
- Meets the WMO Data Quality Objectives and the ICOS for CO2 CH4 and N2O
- Superior absorption in the mid-infrared, no need for high reflectance
- Simple structure, stable system, low system drift
- Passed harsh environmental tests, excellent quality and performance
- Yearly maintenance requirement
Performance indicators
| Performance Specifications | CO2 | CH4 | N2O | H2O |
| Percision(1σ,1s) | 0.2 ppm | 1 ppb | 0.2 ppb | 50 ppm |
| Percision (1σ,1min) | 0.05 ppm | 0.3 ppb | 0.05 ppb | 40 ppm |
| Percision (1σ,5min) | 0.04 ppm | 0.2 ppb | 0.03 ppb | 10 ppm |
| Guaranteed Specifications Range | 0-3500 ppm | 0-500 ppm | 0-500 ppm | 0-3% |
| Drift (over 24 hrs) | 0.2 ppm | 2 ppb | 0.2 ppb | - |
| Data Output Frequency | 1 Hz | 1 Hz | 1 Hz | 1 Hz |
| System Specification | |
| Measurement Technique | Mid-infrared Laser Direct Absorption Spectroscopy (MIRLAS) |
| Sample Temperature | -10 ~ 45 ℃ (temperature) |
| Sample Humidity | < 99% RH, no condensation |
| Sample Flow Rate | ~ 360 mL/min |
| Outputs | USB, RS-232, etc |
| Power Requirements | 110 ~ 230V AC, 80 W at steady state, 120 W start-up |
| Dimensions | 440mm x 190mm x 530 mm |
| Weight | 14.7 kg |
Manufacturer: PRI-ECO, China