The SNiP-WS24 is 'Sensor Node Integrated Package' for LoRaWAN or CAT-M1 communication of real-time weather parameters within a microclimate atmospheric zone for continuous environmental monitoring of a particular site.
The base SNiP-WS24 integrates 1x MFR-NODE with three sensors to a site’s unique network, communication and power requirements: 1x ATMOS-14 Temp & Humidity Sensor, 1x ATMOS 22 Sonic Anemometer and 1x PRP-02 Professional Tipping Bucket Rain Gauge.
The ATMOS-14 measures Air Temperature (°C), Relative Humidity (RH %), Barometric Pressure (kPA), Vapour Pressure (kPa), with or without a passive radiation shield.
The ATMOS 22 measures Wind Speed (m/sec), Wind Direction (°), and Wind Gust Speed (m/sec).
The PRP-02 is a highly accurate (+/- 2%) professional rain gauge which measures precipitation and rainfall at a resolution of .2mm.
See Further Specifications on the ATMOS-14 Temp & Humidity Sensor
See Further Specifications on the ATMOS 22 Sonic Anemometer
See Further Specifications on the PRP-02 Professional Tipping Bucket Rain Gauge
Further or alternative parameters can be added to the SNiP, without requiring loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application. The MFR-Node can support 1x additional sensor to the base package.
The PRP-02 Professional Tipping Bucket Rain Gauge measures the precipitation by means of a funnel (orifice 50 cm2), which leads the water down into the single self-emptying tipping POM spoon, held in place by a hard ferrite magnet. The magnet always exerts just enough tension to allow the measuring spoon to empty in one quick movement (less than 300 ms) and then return to its normal position, ready to once again collect precipitation. This means the counter weight always remains the same opposite to other conventional two spoons tipping bucket rain gauges.
The Multifunction Research Node has been designed to provide flexible communication, sensor and power options.
The MFR-NODE supports SDI-12 and 4 x dry contact digital inputs as well as optionally 2x differential / 4x single ended analogue inputs. The MFR-NODE supports sensors with higher power requirements; a solar panel can charge either the internal lithium-ion battery or both the node and sensor can be powered by an external 12V system (e.g. battery or mains source). Optional CAT-M1 provide an option for remote installation and in areas outside the range existing LoRaWAN networks. The optional multiconstellation GNSS ensures you won’t lose track of your device. The MFR-NODE has an onboard 8GB SD Card to provide data logging capabilities and full data redundancy in the event of temporary loss of communications or dropped packets – ideal for research applications.
The ATMOS 22 is a rugged, research-grade two-dimensional sonic anemometer built specifically for agricultural, forestry, and environmental research applications. A lower wind speed threshold of 0 m/s makes the ATMOS 22 especially well-suited for measuring wind within plant canopies, where wind speeds are often below the threshold of a cup anemometer. And with a resolution of 0.01 m/s, the ATMOS 22 is capable of recording fine-scale variations in wind speeds within and above plant canopies.
Note: The DS-2 is being replaced by the Meter ATMOS 22. The ATMOS 22 features improved firmware and hardware components, and outputs an additional parameter (wind gust). If replacing a DS-2 with an ATMOS 22, changes will need to be made to your datalogger setup to allow for this additional parameter.
|WIND SPEED RANGE:||0 to 30 m/s|
|WIND SPEED RESOLUTION:||0.01 m/s|
|WIND SPEED ACCURACY:||0.30 m/s or < 3%, whichever is larger|
|WIND DIRECTION RANGE:||0 to 359 degrees|
|WIND DIRECTION RESOLUTION:||1 degree|
|WIND DIRECTION ACCURACY:||±3 degrees|
|OPERATING TEMPERATURE RANGE:||-40 to 50°C|
|EXCITATION VOLTAGE:||3.6 to 15 VDC|
|CURRENT:||0.03 mA quiescent, 0.5 mA sampling, < 0.05 mA average|
|HEIGHT (WIND SENSOR):||75 mm|
|HEIGHT (TOTAL W/ MOUNT):||155 mm|
|MAXIMUM SAMPLING SPEED1:||1 Hz|
|OUTPUT1:||average speed, gust speed, direction, or vector|
|CONNECTOR TYPES:||3.5 mm (stereo) plug or stripped & tinned lead wires (Pigtail)|
|CABLE LENGTH:||Standard is 5m, though we have custom cable lengths available upon request|
|1If sampling rate is greater than 0.1 Hz, the anemometer reports the speed and direction at the time of sampling. If sampled less frequently, the anemometer samples every 10 seconds, averages the vector components of the wind, and keeps the maximum gust. When the logger samples, the anemometer reports the average wind speed, direction, and the maximum gust speed.|
|RANGE||0 to 100% RH|
|ACCURACY||Sensor measurement accuracy is variable across a range of temperatures.
Refer to the chart in Figure 1 to determine the accuracy specification for the ATMOS 14 sensor.
|< 40 s (response time in 1 m/s air stream)|
|HYSTERESIS||< 1% RH typical|
|LONG TERM DRIFT||< 0.5% RH/year typical|
|RANGE||-40°C to 80°C|
|ACCURACY||Sensor measurement accuracy is variable across a range of temperatures. Refer to the chart in Figure 2 to determine the accuracy specification for the VP-4 sensor|
|< 400 s (response time in 1 m/s air stream)|
|LONG TERM DRIFT||< 0.04°C / year typical|
|RANGE||0 to 47 kPa|
|ACCURACY||Sensor measurement accuracy is variable across a range of temperatures and RH. Refer to the chart in Figure 3 to determine the accuracy specification for the VP-4 sensor.|
|RANGE||49 to 109 kPa|
|DIMENSIONS||1.96 cm (dia) x 5.4 cm (h)|
|POWER REQUIREMENTS||3.6 to 15 VDC, 0.03 mA quiescent, 4 mA during 300 ms measurement|
|RESPONSE (MEASUREMENT) TIME||300 ms|
|OUTPUT||Decagon Digital or SDI-12|
|OPERATING TEMPERATURE||-40°C to 80°C|
|CONNECTOR TYPES||3.5 mm (stereo) plug or stripped and tinned lead wires (pigtail)|
|CABLE LENGTH||5 m standard; custom cable length available upon request|
|DATA LOGGER COMPATIBILITY
|Meter/Decagon: Em50 Series (Firmware 2.19+)
ICT SDI-12 logger, AML, AWS, Universal Telemetry Hub
Campbell Scientific: Any logger with serial I/O
|HANDHELD READER COMPATIBILITY||ProCheck (rev 1.57+)|
|SOFTWARE COMPATIBILITY||ECH2O Utility (rev 1.74)
DataTrac (rev 3.11+)