LI-7820 N2O/H2The O trace gas analyzer is a new generation high-performance, portable trace gas analyzer launched by LI-COR. Adopting the principle of optical feedback cavity enhanced absorption spectroscopy (OF-CEAS). LI-7820 N2O/H2The trace gas analyzer provides continuous and high-precision N2O measurement. Especially suitable for extreme environments and remote areas, the analyzer is compact, portable, low power consumption, easy to use, and convenient for data acquisition.
main features
●Easy to operate. Just connect the pipeline and start the measurement after preheating. The display screen can view measurement results and diagnostic information without even opening the chassis during use.
●Data collection and viewing are very convenient. Built in Webserver, data can be viewed through Ethernet wired connection or Wi Fi wireless connection, using web browsers on mobile phones and computers
●Lightweight and portable, low power consumption. Long term field measurements do not require complex facilities. Can be carried and lifted, easy to operate by one person.
●The 8200-01S intelligent measurement room or LI-8150/LI-8250 multi-channel soil carbon flux monitoring system that can be connected to LI-COR can achieve soil N2Investigation or long-term monitoring of O flux.
application area
●Soil gas flux measurement
●Atmospheric background monitoring
●Urban emission monitoring
●Mobile emission source detection
●Sensor networking measurement
●Large scale release monitoring
Technical Parameter
N2O measurement | H2O measurement |
Measurement range: 0~100 μ mol/mol Response time (T)10-T90): N2O≤2s,0~330 ppb Accuracy (1 σ): The average signal per second is 0.40 ppb@330 ppb 5-second signal average: 0.20 ppb@330 ppb |
Range: 100~60000 μ mol/mol Accuracy (1 σ): The average 1-second signal is 45 μ mol/mol @ 10000 μ mol/mol The average signal in 5 seconds is: 20 μ mol/mol @ 10000 μ mol/mol |
Measurement technology: OF-CEAS, Optical feedback cavity enhanced absorption spectroscopy
Measurement frequency: 1Hz
Optical cavity volume: 6.41 cm3
Flow rate: 250 sccm
Total weight: 10.5 kg (including battery)
Size: 51 cm L x 33 cm W x 18 cm H
Working temperature: -25~45 ℃ (daily operating environment without direct sunlight)
Working humidity: 0~85% RH (daily operating environment without condensation and direct sunlight)
Sampling line humidity range: 0~99.9% RH (daily operating environment without condensation and direct sunlight)
Working pressure: 70~110 kPa
Connection: Ethernet, Wi Fi (in some countries) Wi Fi compatibility: 2.4 GHz, 802.11 a/b/g/n/ac connection: Ethernet, Wi Fi (in some countries) Wi Fi compatibility: 2.4 GHz, 802.11 a/b/g/n/ac
Power consumption:
Stable operating state: 22W@25 ℃
Start (10.5~33 VDC power supply, Pins 3 and 4): Under 100W (battery connected for charging)
Start up (universal power supply or 24 VDC power supply, pins 1 and 5): within 140W (battery connected for charging)
DC power supply: 1.3~2.3 W
Power supply: Universal power adapter (input: 100~240 VAC, 50-60Hz; Output: 24VDC
Battery life: Typical 8 hours (2 batteries)
8200-01S Intelligent Measurement Room
Origin and Manufacturer: LI-COR Corporation, USA