LI-COR LI-7815 Trace Gas Analyzer Philippines

Trace Gas Analyzers

LI-7815

Grounded in Science, Designed for Research

From idea to understanding, LI-COR has your soil gas flux research covered. No other solution is as flexible or delivers the same level of proven hardware, gas analyzers, and advanced data analysis software.

LI-COR LI-7815 Trace Gas Analyzer Philippines

High precision CO₂ monitoring

The LI-COR LI-7815 CO₂/H₂O Trace Gas Analyzer provides exceptionally stable and precise measurements for long-term atmospheric monitoring measurements. CO₂ measurements drift less than 0.2 ppm per 24-hour period with 0.04 ppm precision (1σ, with 5-second averaging) at 400 ppm CO₂ in dry air at STP.

Exceptionally stable and precise measurements

The LI-7815 CO₂/H₂O Gas Analyzer provides stable and precise CO₂ measurements in a rugged, portable, and cost-effective design.

LI-7815 Long-Term Outdoor CO₂ Stability

Thirty-day CO₂ stability data from an LI-7815 CO₂/H₂O analyzer. A single instrument was operated outdoors continuously over the entire time period, measuring ambient air between stability checks. During stability checks, the analyzer was flushed for 10 minutes with tank gas (2 ppm CH₄, 400 ppm CO₂ mixed in air balance, 1% nominal concentration accuracy) and a time series data set was subsequently recorded for 10 minutes every 12 hours. The figure shows the mean value of the 10-minute measurements. Error bars represent a 1σ confidence interval (68%).

LI-7815 24-Hour CO₂ Precision with Allan Deviation Plot

LI-7815 24-Hour CO2 Precision with Allan Deviation Plot — **Figure 2. 24-hour CO₂ stability data from an LI-7815 CO₂/H₂O analyzer (top).** The instrument was operated continuously over a 24-hour period with a continuous flow of tank gas. The blue line shows 1-second measurements; the diamond line shows a 50-minute block average. Allan deviation plot (bottom) of CO₂ measurements from an LI-7815 measuring 402.3 ppm CO₂ shows precision at 1-second signal averaging, with improved precision as averaging time increases. Error bars represent 68% (±1σ) confidence intervals based on number of averaged time series available at each τ.

Key specifications

General

Total Weight: 10.5 kg (including batteries)
Battery Life: 8 hours typical with 2 batteries

CO₂ Measurements

Response Time (T₁₀-T₉₀): all from 0 to 400 ppm
- ≤ 2 seconds in Standard Configuration
- ≤ 3 seconds in High Altitude Configuration
Range: 0 to 10,000 ppm
Precision (1σ):
- 0.10 ppm at 400 ppm with 1 second averaging
- 0.04 ppm at 400 ppm with 5 second averaging
Maximum Drift: < 0.2 ppm per 24-hour period

See the full LI-7815 specs

Applications

The LI-7815 Trace Gas Analyzer can be used for, but is not limited to, the following applications:

Atmospheric monitoring
Urban emissions monitoring
Mobile emissions monitoring
pCO₂
Sensor networks
Large area emissions monitoring
Fugitive emissions

LI-7815 CO2_H2O Trace Gas Analyzer Philippines

For more information, contact us.

Brochure

Trace Gas Analyzers

Field guide to instruments for the earth sciences

Posters

Development of Trace Carbon Dioxide Isotopologue Analyzer – Performance Evaluation Study

Long-Term Atmospheric Monitoring of Background CH₄ and CO₂ at Mace Head Atmospheric Research Station, Ireland Using LI-COR LI-7810 and LI-7815 Trace Gas Analyzers

How do soil temperature and moisture regulate N₂O flux from an urban lawn?

Measuring Very Small Soil Fluxes of N₂O & CH₄ Using a New OF-CEAS Technology

Development of Trace Methane and Trace Carbon Dioxide Analyzers – Performance Evaluation Studies, GCWerks Integration, and Results of Field Deployment

Performance validation of new high precision CH₄ and CO₂ analyzers based on optical feedback cavity enhanced absorption spectroscopy

Methane and Carbon Dioxide Measurements with New High-Precision Low-Power Low-Maintenanace Closed-Path Analyzers: First Lab and Field Results

Chamber-based Soil Methane Flux Measurement

Measuring CH₄ and CO₂ with New Generation High-Precision Low-Power Low-Maintenance Closed-Path Analyzers: Lab and Field Results

Features

What makes LI-COR different?

LI-COR offers hardware, software, and analyzers that are based on extensive scientific research and testing. Patented designs minimize disruption of natural soil gas transport across the soil surface and record high-precision flux measurements to evaluate spatial and temporal variability.

Together, this integrated system provides an entirely comprehensive research solution for measuring large- and small-scale events—including CO₂, CH₄, or N₂O greenhouse gas emissions.

Designed for flexibility and convenience

LI-COR soil gas flux systems combine more than 20 years of experience with the latest innovations for flexibility and convenience.

+ See the difference

LI-COR Soil Flux System with Smart Chamber, LI-8250 Multiplexer, LI-7810 Trace Gas Analyzer and LI-870 Gas Analyzer.

LI-7820 N2O/H2O Trace Gas Analyzer taking a survey measurement

Tailored for dependable practicality

Each LI-COR gas analyzer is portable, durable, and simple to deploy—allowing you to take CO₂, CH₄, and N₂O survey and long-term measurements with ease.

Engineered to reduce artificial impact

The importance of soil gas flux chambers to take accurate measurements is often underestimated. An inherent challenge to chamber design is the influence the chamber may have on measurements.

All LI-COR chambers are designed to minimize chamber interference on the natural soil gas flux, and gas production and consumption, leading to accurate, consistent measurements.

+ See the difference

LI-COR soil chambers reduce artificial impact

SoilFluxPro™ Software

SoilFluxPro Software simplifies the management and processing of large soil gas flux datasets. SoilFluxPro is powerful, free software included with LI-COR soil gas flux solutions. View, revise, and recompute flux data, get advanced guidance on deadband and stop time, perform quality assurance and quality control, and much more.

+ See the difference

Downloads

Brochure

Trace Gas Analyzers

Field guide to instruments for the earth sciences

Posters

Development of Trace Carbon Dioxide Isotopologue Analyzer – Performance Evaluation Study

Long-Term Atmospheric Monitoring of Background CH₄ and CO₂ at Mace Head Atmospheric Research Station, Ireland Using LI-COR LI-7810 and LI-7815 Trace Gas Analyzers

How do soil temperature and moisture regulate N₂O flux from an urban lawn?

Measuring Very Small Soil Fluxes of N₂O & CH₄ Using a New OF-CEAS Technology

Development of Trace Methane and Trace Carbon Dioxide Analyzers – Performance Evaluation Studies, GCWerks Integration, and Results of Field Deployment

Performance validation of new high precision CH₄ and CO₂ analyzers based on optical feedback cavity enhanced absorption spectroscopy

Methane and Carbon Dioxide Measurements with New High-Precision Low-Power Low-Maintenanace Closed-Path Analyzers: First Lab and Field Results

Chamber-based Soil Methane Flux Measurement

Measuring CH₄ and CO₂ with New Generation High-Precision Low-Power Low-Maintenance Closed-Path Analyzers: Lab and Field Results