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Using Keyspan USB-to-Serial Adapter with Onset software other than BoxCar® Pro 4.3
The Keyspan USB-to-Serial Adapter will also work with BoxCar Pro version 4.0, 4.1, and 4.2, but Onset recommends version 4.3 because that includes all the latest loggers and software enhancements, and the upgrade from version 4.0, 4.1, and 4.2 to version 4.3 is available for free.
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Using Onset data loggers if computer has USB ports and no serial port
Onset offers a Serial-to-USB Adapter (http://www.onsetcomp.com/products/cables/adapt-ser-usb) that provides a simple way to connect HOBO and StowAway® data loggers to available USB ports on your computer.
Onset also offers a USB solution with the U-Series Family of data loggers, which interfaces directly with the USB port on your computer.
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Possibility of exposure to chemicals or chemical vapors
This is dependent on the data logger you are using and the chemical and/or concentration of the chemical to which the data logger is exposed. Many chemicals will have an adverse effect on the data loggers and/or the sensors that the loggers utilize. Contact your authorized sales representative with questions regarding specific chemical contact with the data logger that you are using.
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Drying a wet circuit board
If possible, remove the board from the case and the battery from the board. Dry the board completely using a hair dryer. If the board was exposed to salt water, rinse the board with fresh water and then dry the board. You may try inserting a new battery and downloading the data. If you are unable to access the data, or see any sign of corrosion or tarnishing on the board, contact the place of purchase for a return number. The data may be retrievable, and the data logger may be repairable. Charges will apply and are dependent on the amount of damage.
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Protecting data loggers from electrical discharge (ESD)
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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A quick temp-accuracy check (ice bath)
We receive many calls requesting information on how to calibrate our data loggers. While our data loggers cannot be calibrated, you can certainly check to see if the data loggers are recording within their specifications. Ideally, testing should be done in a controlled environment. Unfortunately, not everyone has access to this type of environment.
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Wireline mounting a U20 water level data logger in a well
HOBO Water Level data loggers can be hung in wells using Onset's special low-stretch cable with Teflon coating, to avoid snagging and to make them easy to clean.
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Altitude effects on water level data logger range
Onset's HOBO® U20-001-01 Water Level Data Logger is calibrated from 10 to 30 psia. The 10 psia lower limit creates an effective altitude restriction of about 10,000 feet when the data logger is used. The unit can be used above 10,000 feet, but it is outside of the calibrated range, and the accuracy specification does not apply. The data logger will function, but the accuracy will get worse the further below 10 psia the pressure drops.
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