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Correcting Temperature Sensitivity of ECH2O Soil Moisture Sensors Application Note
Onset adds smart sensor adapters to the ECH2O probes so that they are plug‐and‐play compatible with HOBO® U30 stations and HOBO Micro Stations.
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10HS Volume of Sensitivity Application Note
One of the most important factors to evaluate when selecting a soil moisture sensor is the volume of soil that is integrated into the volumetric water content measurement.
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Soil Monitoring Station with the HOBO Micro Station (H21-002)
This technical note provides a solution for monitoring soil temperature and moisture with the HOBO Micro Station (H21-002).
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Using the pHionics STs pH Sensor with a HOBO RX3000 Station
This application note describes how to connect, calibrate, and operate the pHionics STs pH sensor with the HOBO RX3000 station.
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Judd Communications Snow Depth Sensor with the U30 Remote Monitoring Station
Check out the attached PDF to find out how to use the Judd Communications Snow-Depth Sensor with the HOBO® U30 Station.
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Installing Onset soil moisture sensors
Use the attached guide as a reference when deploying soil moisture Smart Sensors.
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Verifying RH accuracy on HOBO data loggers
Testing the accuracy of relative humidity sensors requires carefully-controlled conditions and a considerable amount of time. Please see the white paper Testing the Accuracy of Sensirion Relative Humidity Sensors in HOBO Data Loggers for complete details on the recommended procedure to follow.
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Smart sensor cable fix
Problem: My smart sensor data shows a -888.888 for a good portion of the data file.
Note: -888.888 means that the logger could not find the smart sensor after the logger was launched successfully.
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U30 and excitation wiring with S-VIA-CM14 modules
Here is a wiring diagram for use with external sensors and the S-VIA-CM14s. Remember the excitation current required to power the external sensors cannot exceed 50 milliamps total.
http://www.onsetcomp.com/files/U30%20VIA%20and%20S_VIA_CM14.JPG
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