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86 results found.
Rapid battery consumption (outdoor loggers)
All Users: Check both the logging and the sampling interval to make sure they are greater than one-minute intervals. For example, with a sampling interval of one second, the HOBO logger is constantly on and there is a constant drain to the batteries. If your application calls for such an interval, you may need to replace the batteries more frequently
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Logger power failure and data loss
The data is stored on non-volatile EEPROM. For data loggers with external batteries: change batteries and offload data, then relaunch normally. For data loggers with internal batteries: as long as the EEPROM has not been damaged, the data can be retrieved by Onset. Please contact the place of purchase for a return authorization number and request data back service.
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Creating a voltage divider
A voltage divider will drop the voltage of the input signal to the level the data logger can measure.
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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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