The new data logger is written in Java. It is distributed as a .jar file. To use it, a Java Virtual Machine must be available on the computer.
The data logger software can be downloaded here. On start-up a file save dialog is shown. Select a directory and type a suitable name for the file to start the logger.
When running, every key typed on the key-board is logged with milli-second resolution. (It does make a lot of sense to synchronize the clock of the computer before starting the logger application.) If several loggers are used simultaneously and it is difficult to synchronize the clocks precisely, a key can be dedicated as a synchronization event. All observers must press this key at the same time. During post processing, the time difference of this event must be applied to all but one of the log files.
Quit the application by clicking on the close box.
To use this application, a correspondence between the keys and the observed events must be decided upon. The human user types the corresponding key when the event occurs. There is not correction key. If one is needed, decide on a key that will indicate that the preceding event must be deleted. Such deletions must be done manually in the log file.
Each line in the file corresponds to one logged event. Each event is recorded as three space-separated fields: