VIP member
Open circuit eddy covariance monitoring system (EC150)
An independent infrared CO2/H2O gas analyzer designed specifically for vortex related flux measurement.
Product details
Innovative Design
Combined with a three-dimensional ultrasonic anemometer to form an open circuit vorticity related measurement system
Or as an independent infrared CO2/H2O gas analyzer
outline
CampbellThe EC150 is an independent infrared CO2/H2The O gas analyzer is designed specifically for vortex related flux measurement, as shown in the figure above. It is used in conjunction with the CAST3A three-dimensional ultrasonic anemometer, forming an open circuit vorticity system for synchronous measurement of CO2， H2O， Air temperature, atmospheric pressure, three-dimensional wind speed, and ultrasonic air temperature.
Advantages and Characteristics
◇ A single optical path configuration gives it a streamlined shape, reducing the impact of aerodynamics to a smaller extent
◇Infrared gas analyzer and ultrasonic anemometer share a set of electronic signal processing system to achieve synchronous measurement
◇ Low energy consumption, can be powered by solar energy
◇ No heating required, temperature compensation during measurement
◇Low noise, high accuracy
◇ The maximum output frequency is 60Hz, 20Hz bandwidth.
◇ Allow mild contamination of the window
◇ Window angled design, good water avoidance effect
◇ Durable and sturdy, suitable for outdoor use
◇ After comprehensive practice, CO2， H2O， The factory calibration of atmospheric pressure and temperature has a wide range
◇ Multiple diagnostic parameters
◇Fully compatible with Campbell data collector: on-site settings, configuration, zero and span calibration can all be completed by directly connecting to the data collector
◇ Rainproof: The combination of innovative ultrasonic signal processing and audio transmission and reception heads with water absorbing rainproof nets greatly improves the performance of anemometers during rainfall processes
EC150output
|
Integrated with itCSAT3Aoutput
|
Accessory sensor output |
CO2 density(mg/m3)
|
ux(m s-1) | temperature(℃) |
H2Odensity(g/m3)
|
uy(m s-1) | pressure(kPa) |
CO2 signal intensity
|
uz(m s-1) | |
H2Osignal intensity
|
Ultrasonic temperature(℃)
|
|
Gas analyzer operation diagnostic code |
ultrasonic diagnosis |
General performance indicatorsa：
◇Operating temperature:- 30℃~+50℃
◇Calibration pressure range: 70~106 kPa
◇Input voltage: 10~16 Vdc
◇Power supply @ 25 ℃: 5W (steady state and startup)
◇Measurement rate: 60 Hz
◇Output bandwidth: 5, 10, 12.5 or 20Hz; User defined
◇Output options: SDM，RS-485，USB， simulation(Only)CO2And H2O）
◇Auxiliary input: Air temperature and pressure
◇ EC150Head and cable weight: 2.0kg (including cable)
◇ CSAT3AHead and cable weight: 1.7kg
◇ EC100Electronic chassis weight: 3.2kg
◇ Cable length: 3m, from EC150 and CSAT3A to EC100
◇Warranty: 3 years or 17500 hours of operation, whichever comes first
Technical parameters of gas analyzera,b
Optical path length： fifteen point three sevencm（6.05 in）
Instrument performance
CO2
|
H2O |
|
accuracyc
|
1%d
|
2%d
|
Standard errorRMS(Maximum)e
|
0.2mg/m3(0.15μmol/mol)
|
0.004g/m3(0.006mmol/mol)
|
Calibration range |
0to1,000μmol/molf
|
0to72mmol/mol(38°Cthe dew point )
|
Zero drift related to temperature (maximum) |
±0.55mg/m3/°C(±0.3μmol/mol/°C)
|
±0.037g/m3/°C(±0.05mmol/mol/°C)
|
Temperature related gain drift (maximum) |
±0.1%ofreading/°C
|
±0.3%ofreading/°C
|
Cross sensitivity (maximum) |
±1.1x10-4molCO2/molH2O
|
±0.1molH2O/molCO2
|
CSAT3APerformance refers tomarka
Accuracyd
Quiet Wind
ux， uy：< ±8.0 cm="">±8.0>-1
uz：< ±4.0 cm="">±4.0>-1
slope error
The angle between the wind vector and the horizontal plane is within ± 5 °<>
The angle between the wind vector and the horizontal plane is within ± 10 °<>
The angle between the wind vector and the horizontal plane is within ± 20 °<>
Standard Error RMSe
ux， uy： 1mm s-1
uz： 0.5 mm s-1
c： 15 mm s-1(0.025℃)
Sound velocity: measured from three acoustic paths and corrected for lateral wind effects.
Rainproof: The combination of innovative ultrasonic signal processing and installation of audio transmission and reception heads with water absorbing rainproof nets effectively improves the operational quality under rainy conditions.
Performance indicators of pressure sensorsa
Basic type |
High precision type |
|
manufactor |
FreescaleMPXAZ6115A
|
VaisalaPTB110
|
Accuracy within the working temperature range |
±1.5kPa(0℃~+50℃)；Linear from±1.5kPa@0℃~±3.7kPa@-30℃
|
±0.15kPa(-30℃~+50℃)
|
Performance indicators of external temperature measurement sensorsa
manufactor: BetaTherm 100K6A1IA
Accuracy within the working temperature range: ± 0.15 ℃ (-30 ℃~+50 ℃)
This article cannot reflect the continuous improvement and perfection in a timely manner.
B temperature of 20 ℃ and pressure of 101.325 kPa are used for the conversion between mass (molar) density and molar ratio.
RMS is an indicator under standard conditions: 25 ℃, 597 mg/m3 CO2 density, 85 kPa, 14 g/m3 water density, 25 Hz bandwidth
The accuracy index of the d CAST3A ultrasonic anemometer refers to the accuracy index when the wind speed is less than 30 m="s-1=" ">30>
The RMS is calculated based on the measured value of steady current, i.e., when the wind speed remains constant.
B temperature of 20 ℃ and pressure of 101.325 kPa are used for the conversion between mass (molar) density and molar ratio.
RMS is an indicator under standard conditions: 25 ℃, 597 mg/m3 CO2 density, 85 kPa, 14 g/m3 water density, 25 Hz bandwidth
The accuracy index of the d CAST3A ultrasonic anemometer refers to the accuracy index when the wind speed is less than 30 m="s-1=" ">30>
The RMS is calculated based on the measured value of steady current, i.e., when the wind speed remains constant.
Origin: Campbell Corporation, USA
Online inquiry
-
Contacts
-
Company
-
Telephone
-
Email
-
WeChat
-
Verification Code
-
Message Content
-