Data loggers are instruments that can be used to store data. Most consider a data loggers as stand alone instruments that can read various types of electrical signals and store the data in internal memory for later download to a computer.

Data Loggers

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Data loggers can operate independently of a computer. Data loggers are available in various shapes and sizes. The range includes simple economical single channel fixed function loggers to more powerful programmable devices capable of handling hundreds of inputs.

When choosing a data logger the following parameters should be considered.

Three types of instruments are commonly used for collecting and storing data. They are Real-Time Data Acquisition Systems, Chart Recorders and Data Loggers.

Data loggers are normally more economical than chart recorders. They offer more flexibility and are available with a greater variety of input types.

Data acquisition systems offer a great deal of flexibility and are certainly attractive when high sample rates are required, however, since they require connection or installation into a computer, the computer must also be present and active when collecting the data.

Data loggers can collect data independently of a computer. Data is normally collected in non-volatile memory for later download to a computer. The computer does not need to be present during the data collection process. This makes them ideally suited for applications requiring portability.