LI-7200RS Closed Circuit CO₂/H₂The O intelligent analysis system is used for high-frequency monitoring of CO in the atmosphere₂And H₂O gas concentration, especially suitable for use in harsh environments such as rain, snow, and heavy fog. LI-COR company injects unique innovative concepts into the design of LI-7200RS, combining the advantages of both open circuit and closed circuit analysis systems.



main features


	Reduce data lossRain, snow, and fog are not affected.		Maintenance free designRedesigned optical components and added filter temperature control, outperforming various harsh outdoor environments with almost no maintenance required, remaining stable and drift free.
	ultrastabilityTemperature strictly controlled detectors and filters ensure measurement stability.		Minimize interferenceInstalling the intake pipe near the ultrasonic anemometer can minimize the impact of the instrument on the airflow, effectively avoiding data bias.
	Ensure high-frequency responseThe intake pipe with insulation and optional heating components ensures the accuracy of high-frequency measurement of water vapor data.		Record complete vorticity covariance dataThis includes wind speed data collected by ultrasonic anemometers and auxiliary meteorological, radiation, and soil data collected by the LI-COR Biomet system.

built-inSMARTFlux^® system

SMARTFlux^®The system will integrate EddyPro^®The functionality of the software is brought to your field site, like a powerful field computer that can perform real-time and complete vorticity flux calculations. The calculation results are consistent with your use of EddyPro in the office^®The results obtained from processing raw data are exactly the same, but more timely. SmartFlux^®The system is FluxSuite^®The hardware foundation of the data online monitoring and management system.

TECHNICAL INDEX
CO₂The measurement

Calibration range: 0~3000 µ mol/mol
Accuracy:< 1%
Zero drift (per ℃):

Typical ± 0.1 µ mol/mol
Maximum ± 0.3 µ mol/mol

RMS noise/resolution (typical @ 370 µ mol/molCO)₂And 10 mmol/molH₂O)：

@5 Hz：0.08µmol/mol
@10 Hz：0.11µmol/mol
@20 Hz：0.16µmol/mol

Gain drift (% of reading per ℃ @ 370 µ mol/mol):

Typical ± 0.02%
Maximum ± 0.1%

Regarding H₂Sensitivity of O (mol CO)₂/mol H₂O)：

Typical ± 2.00E-05
Maximum ± 4.00E-05

H₂Omeasure

Calibration range: 0~60mmol/mol
Accuracy:< 2%
Zero drift (per ℃):

Typical ± 0.03mmol/mol
Maximum ± 0.05mmol/mol

RMS noise/resolution (typical @ 10mmol/mol H)₂O)：

@5 Hz：0.0034mmol/mol
@10 Hz：0.0047mmol/mol
@20 Hz：0.0067mmol/mol

Gain drift (% of reading per ℃ @ 20 mmol/mol):

Typical ± 0.15%
Maximum ± 0.30%

Regarding CO₂Sensitivity (mol H)₂O/mol CO₂)：

Typical ± 0.02
Maximum ± 0.05

comprehensive

Analysis type: Absolute, non dispersive infrared solid-state detector
Data storage: 16GB pluggable industrial grade USB flash memory device
Data communication: Ethernet, SDM (>50Hz), RS-232 (115200 baud rate; Maximum 20Hz, 6 DACs (0-5V; 300Hz)
Input: Four analog input channels (differential; bipolar; ± 5V; 300Hz)
Working temperature: -25~50 ℃ (can be expanded to -40~50 ℃ as needed)
Power supply: 10.5~30VDC
Power consumption: 12W (30W at startup)
Detector: Thermopile cooled lead selenide detector
Bandwidth: optional 5, 10, or 20Hz
User interface: Windows^®platform
Cable length: 5 meters (all cables); According to the requirements, the probe cable can be extended

Analyzer probe

Size: Diameter 7.5cm, Length 31cm
Weight: 1.8 kg

LI-7550 analyzer interface unit

Size: 35cm×30cm×15cm
Weight: 4.4 kg

7200-101 traffic module

Working temperature:- 25~50℃
Power supply: 10.5~30VDC
Power consumption:< 16W
Flow rate: 15LPM
Size: 35cm × 30cm × 15cm
Weight: 6.15 kg

Adiabatic intake pipe

Length: up to 1m
Tube inner diameter: 5.33mm
Tube outer diameter: 6.35mm

Heating the intake pipeNEW

Length: 71.1cm
Tube inner diameter: 5.33mm
Tube outer diameter: 6.35mm
Working temperature:- 40~50℃
Power consumption: 0.1~6W
Heat density ratio: 2:1
Weight: 0.54 kg

7550-101 Auxiliary Sensor

Size: 11.5cm×6.5cm×4.2cm
Weight: 0.39 kg including installation bracket

Origin and Manufacturer: LI-COR Corporation, USA