Soil greenhouse gas measurement system

NegotiableUpdate on 12/24

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

The LI-7810/LI-7815 Soil Greenhouse Gas Measurement System is a new generation high-performance, portable trace/greenhouse gas analyzer launched by LI-COR. The principle of optical feedback cavity enhanced absorption spectroscopy (OF-CEAS) is adopted, which has high accuracy, stability, durability, and calibration free, providing a new dimension for trace gas measurement and monitoring. At present, high-precision CH4/CO2/H2O or CO2/H2O analyzers can be selected according to needs.

Product Details

LI-7810/LI-7815Soil greenhouse gas measurement systemKey Features:

1. 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.

2. Data collection and viewing are very convenient

The analyzer can store data for up to three months. Supports Ethernet connection to computers or data acquisition for long-term storage of data.

Built in Websever, data can be viewed through Ethernet wired connection or Wi Fi wireless connection on mobile phones and computers' web browsers.

3. Low power consumption, maintenance free

Both solar energy and alternating current can support field operation.

4. Lightweight and portable

Long term field measurements do not require complex facilities. Can be carried and lifted, easy to operate by one person.

5. Suitable for various usage scenarios

The analyzer case is anti-aging and suitable for indoor and outdoor applications. PreciseTech ™ The design ensures the flexibility of the analyzer for various application scenarios or research.

LI-7810/LI-7815Soil greenhouse gas measurement systemGeneral technical parameters:

Measurement technology: Optical feedback cavity enhanced absorption spectroscopy (OF-CEAS)

Measurement frequency: once per second

Optical cavity volume: as low as 6.41cm3

Flow rate: 280 sccm (standard milliliters per minute)

Total weight: 11.4kg (including battery)

Chassis dimensions (length x height x width): 51cm x 18cm x 33cm

Power requirement: 10.5~30 VDC

Power consumption: Steady state 20W, nearly 65W during preheating period

Operating temperature range: -25 ℃~45 ℃

Operating pressure range: 70~110kPa

Connection methods: Ethernet and Wi Fi (Wi Fi may be restricted in some countries)

Wi-Fi兼容性： 2.4GHz，802.11g

AC power supply: including universal power adapter (100~240 VAC; 50~60Hz)

Battery life: Typically, 2 batteries work for 8 hours

LI-7810 CH4/CO2/H2O gas analyzer

	measurement range	Accuracy (1 σ)	accuracy
CH4	0.1~50μmol/mol	0.25ppb， 5-second signal average	2ppb@2000ppb ,25℃,1000~10,000ppb
CO2	1~10,000μmol/mol	1.5μmol/mol， 5-second signal average	1.5%@300~700μmol/mol
H2O	100~60,000μmol/mol	20μmol/mol， 5-second signal average	1.5%@500~60,000μmol/mol
Response time (T90): from 0 to 2 μ mol/mol, CH4 response time ≤ 2 seconds

LI-7815 CO2/H2O gas analyzer

	measurement range	Accuracy (1 σ)	accuracy
CO2	1~10,000μmol/mol	0.0224μmol/mol， 5-second signal average	0.4μmol/ mol@400 μmol/mol,25℃
H2O	100~60,000μmol/mol	20μmol/mol， 5-second signal average	1.5%@500~60,000μmol/mol
Response time (T90): from 0 to 400 μ mol/mol, CO2 response time ≤ 2 seconds