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Barometric Compensation Method

Barometric Compensation Method - Technical Details

This section presents the details of how the Pressure values are computed, and how Pressure and Temperature values

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Charging a very low HOBO RX3000 or U30 battery

As mentioned in the HOBO RX3000 and U30 documentation, if the battery voltage is allowed to drop too low, it may not be charged within the logger.

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HOBO RX3000 Manager and HOBOnode viewer will not work after Java 9 Update

If you are running HOBOware version 3.7.13 and also have updated to JAVA JRE 9, there will be an issue with the RX3000 manager and the HOBO node Manager within the HOBOware program.

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HOBO Waterproof Shuttle U-DTW-1 LED Error Codes

The numbers below indicate a blink pattern. The first digit is the first part of the blink pattern and the second digit is the second part of the blink pattern.

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Measure Direct Current with the HOBO RX3000 and the T-VER-H971 Transducer

To measure Direct Current using the HOBO RX3000 and the T-VER-H971 transducer, see attachment.

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HOBO U20 Stainless Steel Data Logger - sensor location

See attached diagram for sensor location in HOBO U20 stainless steel data loggers.

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HOBOware Closes with No Warning or Error

This can be a byproduct of what is called "GodMode" on later Windows OSs. It seems that this will interfere with some JAVA applications.

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HOBO UX120-017: Dry contact, channel voltage.

When the switch is closed, low voltage (0V) is detected. When the switch is open, a 100K pull-up resistor brings the processor input pin to 3.3V.

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HOBO MX110X buzzer decibel (dB) output

The buzzer decibel (dB) output of the HOBO MX1100 logger series is 65 dB to 75 dB, depending on battery level.

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Wiring Diagram - Monitoring Three- Phase Energy using the HOBO UX90-001 and the Wattnode kWh Transducer

Attached is a drawing that illustrates how to use a HOBO UX90-001 State Data Logger and a T-WNB-3D-480 3-phase kWh Transducer to monitor energy consumption on a three-phase circuit.

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