1232SA25Q0474 ECS_Specifications_.pdf

Eddy Covariance Systems Specifications and Requirements

Technical Specifications & Requirements:

IRGASON Integrated Open Path 3-D Sonic Anemometer & CO2/H2O Gas Analyzer General Specifications/Requirements:

▪ Must be of fully integrated design to minimize flow distortion and measurement errors that adversely affect measurement accuracy.

▪ Mus be capable of collecting continuous research-grade measurements of the orthogonal wind velocity components, water and carbon dioxide concentration, air temperature, and barometric pressure.

▪ Must be of rugged design, capable of prolonged (> 1 yr) exposure to ambient weather conditions for long-term deployment in the field

▪ Must be fully compatible and interoperable with Campbell Scientific dataloggers, micrometeorological equipment, and both programming and data processing software.

▪ Must have low power requirements in order to ensure that it can be deployed in remote locations using batteries and solar panels as a part of an automated system.

Technical Specifications/Requirements

▪ Operating Temperature Range: -30° to 50°C

▪ Input Voltage Range 10 to 16 Vdc

▪ Internal Sampling Rate: 60 Hz

▪ Output Sampling Rate: 5, 10, 12.5, or 20 Hz (user-programmable)

▪ Output Options: SDM, RS-485, USB, analog (CO2 and H2O only)

▪ Sonic Anemometer Accuracy: Horizontal: ±1 mm/s Vertical: 0.5 mm/s

▪ Sonic Temperature Accuracy: 0.025 °C

▪ Gas Analyzer Pathlength: 15.37 cm

▪ Carbon Dioxide Accuracy: 0.2 mg/m3 (0.15 μmol/mol)

▪ Carbon Dioxide Calibration Range: 0 to 1,000 μmol/mol

▪ Water Vapor Accuracy: 0.004 g/m3 (0.006 mmol/mol)

▪ Water Vapor Calibrated Range: 0 to 72 mmol/mol

▪ Basic Barometer Accuracy: ±1.5 kPa (0° to 50°C) CR6 Measurement & Control Datalogger with RF407 w/900MHz Radio Telemetry General Specifications/Requirements:

▪ Must be of rugged design, capable of prolonged (> 1 yr) exposure to ambient weather conditions for long-term deployment in the field

▪ Must be fully compatible and interoperable with Campbell Scientific and other micrometeorological equipment.

▪ Must be programmable using Campbell Scientific LoggerNet software and capable of operating the Campbell Scientific data processing software, Easy Flux.

▪ Must have low power requirements in order to ensure that it can be deployed in remote locations using batteries and solar panels as a part of an automated system.

▪ Must be capable of transmitting data via radio telemetry.

Technical Specifications/Requirements

▪ Operating Temperature Range: -40° to 70°C

▪ Universal Input Channels: 12

▪ Number of Channels: 6 differential or 12 single-ended inputs

▪ Number of Excitation Channels: 4

▪ Excitation Voltage: ±5 V

▪ Number of 12 V Outputs: 2

▪ Pulse Counter Channels: 16

▪ Static Vibrating Wire Measurements Supported

▪ Input Ranges: ±5000 mV, ±1000 mV, ±200 mV (analog w/ 24 bit ADC)

▪ Maximum Scan Rate: 1 KHz (1 channel)

▪ Communications Ports: Ethernet, USB Micro B, CS I/O, CPI, RS-485, RS-422, SDI-12

▪ Data Storage Port: microSD

▪ Processor: Renesas RX63N (32-bit at 100 MHz)

▪ Onboard Memory: 128 MB of flash and 4 MB SRAM

▪ Data Storage expandable via removable microSD flash memory, up to 16 GB

▪ Active Power Consumption: 67 mA

▪ Internet Protocols Supported: Ethernet, PPP, RNDIS, ICMP/Ping, Auto-IP (APIPA), IPv4, IPv6, UDP, TCP, TLS (v1.2), DNS, DHCP, SLAAC, Telnet, HTTP(S), SFTP, FTP(S), POP3/TLS, NTP, SMTP/TLS, SNMPv3, CS I/O IP, MQTT

▪ Communications Protocols Supported: CPI, PakBus, SDM, SDI-12, Modbus, TCP, DNP3, UDP, NTCIP, NMEA 0183, I2C, SPI

GRANITE Series VOLT116 16 or 32 Channel Analog Input Module General Specifications/Requirements:

▪ Must be of rugged design, capable of prolonged (> 1 yr) exposure to ambient weather conditions for long-term deployment in the field

▪ Must be fully compatible and interoperable with Campbell Scientific and other micrometeorological equipment.

▪ Must be programmable using Campbell Scientific LoggerNet software and capable of operating the Campbell Scientific data processing software, Easy Flux.

▪ Must have low power requirements in order to ensure that it can be deployed in remote locations using batteries and solar panels as a part of an automated system.

Technical Specifications/Requirements:

▪ Operating Temperature Range: -40° to 70°C

▪ Power Requirements: 9.6 V

▪ Active Power Consumption: 20 mA

▪ Number of Channels: 16 differential or 32 single-ended inputs

▪ Number of Excitation Channels: 4

▪ Excitation Voltage: ±5 V

▪ Number of 12 V Outputs: 2

▪ Input Ranges: ±5000 mV, ±1000 mV, ±200 mV (analog w/ 24 bit ADC)

▪ Maximum Scan Rate: 1 KHz (1 channel); 167 Hz (16 channel)

Campbell Scientific 20 ft Stainless Steel Tripod w/ Ground & Guy Kit and both the 4 ft and 6 ft Sensor Crossarms

General Specifications/Requirements:

▪ Must be portable to facilitate transportation and field deployment at remote locations.

▪ Must be 20 ft in height and capable of tilting to facilitate deployment and maintenance in agricultural environments.

▪ Must be of rugged design, capable of prolonged (> 1 yr) exposure to ambient weather conditions for long-term deployment in the field

▪ Must be fully compatible with Campbell Scientific and other micrometeorological equipment. Peripherals, and hardware including mounts, crossarms, and enclosures.

Technical Specifications/Requirements

▪ Tripod Material: Stainless steel

▪ Crossarm Material: Anodized aluminum

▪ Height: 20 ft

▪ Crossarm Lengths: 4 ft and 6 ft

▪ Tripod Outer Diameter: 1.5 – 2 in

▪ Crossarm Outer Diameter: 1.1315 in

▪ Vertical Load Limit: 100 lb

▪ Base Diameter :7 ft with legs fully extended

▪ Sustained Wind Load Tolerance (guyed at feet): 40 mph

▪ Gust Wind Load Tolerance (guyed at feet): 55 mph

16 ×18 in Enclosure w/ dual Conduits, Tripod Mast Mounting, & Standard Backplate General Specifications/Requirements:

▪ Must be of rugged design, capable of prolonged (> 1 yr) exposure to ambient weather conditions for long-term deployment in the field

▪ Must be fully compatible with Campbell Scientific and other micrometeorological equipment. Peripherals, and hardware including mounts, crossarms, and enclosures.

Technical Specifications/Requirements

▪ Internal Dimensions: 18 × 16 × 9 in

▪ External Dimensions: 19.5 × 17.5 × 10.6 in

▪ Material: Fiberglass-reinforced polyester

▪ Number of Cable Conduits: 2

▪ Lockable Hasps

▪ Weather-resistant with door gasket

▪ Grounding Lug

▪ Reflective white exterior

Other General Considerations for all Eddy Covariance System Components

▪ Weather-resistant and rugged construction capable of prolonged (> 1 yr) exposure to ambient weather conditions to facilitate long-term deployment in agricultural and natural systems.

▪ Fully compatible/interoperable with Campbell Scientific instruments, dataloggers, and software currently used by SWAR and NLAE scientists.

▪ Must have low power requirements in order to ensure that it can be deployed in remote locations.

▪ Can be deployed and maintained with minimal training or supervision by personnel with limited expertise in micrometeorology and environmental measurements.

▪ The research team has extensive experience programming, deploying, and collecting data with Campbell Scientific instrumentations and software. The continued use of Campbell Scientific equipment facilitates deployment and maintenance of equipment, data collection and processing, and when necessary, troubleshooting and field repairs. It also ensures the accuracy, consistency, and integrity of the data.