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100 results found.
Boosting mV outputs to 0-2.5 DC outputs for use with HOBO stand-alone data loggers
Simple non-inverting op-amp amplifier circuit - how to boost mV to 0-2.5V DC.
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Weather station setup
Unfortunately, we do not have installers for our weather stations. We do, however, have a series of videos along with the complete user manual to help you assemble your station.
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Data logger is shutting off prematurely
A discharge of static electricity may cause a running data logger to stop recording. Precautions should be taken to prevent this while handling the data logger.
Discharges may occur when there is a charge difference between the data logger and a cable being connected to it or when a person touches an exposed jack.
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U30 Analog Inputs
This information is included in the U30 manual. See attachment.
Includes hardware.
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U30/Hobolink account setup
Here is a quick rundown on setting up a U30:
HOBOlink video
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SMS text messaging
Sending SMS through mobile phones is easy. If you can be reminded through email, you can now be reminded through SMS.
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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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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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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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