主要规格及技术指标

CH4 Measurements
Response Time (T10-T90): all from 0 to 2 ppm
≤ 2 seconds in Standard Configuration
≤ 3 seconds in High Altitude Configuration
Range: 0 to 100 ppm
Precision (1σ):
0.60 ppb at 2 ppm with 1 second averaging
0.25 ppb at 2 ppm with 5 second averaging
Maximum Drift: < 1 ppb per 24-hour period
CO2 Measurements
Range: 0 to 10,000 ppm
Precision (1σ):
3.5 ppm at 400 ppm with 1 second averaging
1.5 ppm at 400 ppm with 5 second averaging
H2O Measurements
Range: 0 to 60,000 ppm
Precision (1σ):
45 ppm at 10,000 ppm with 1 second averaging
20 ppm at 10,000 ppm with 5 second averaging

主要功能及特色

The LI-COR LI-7810 CH4/CO2/H2O Trace Gas Analyzer provides exceptionally stable and precise methane measurements in a design that is both surprisingly portable and affordable. CH4 measurements drift less than 1 ppb per 24-hour period with 0.25 ppb precision (1σ, with 5-second averaging) at 2000 ppb CH4 in dry air at STP.

主要附件及配置

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