The LOGiT loggers and the LOGiTpc software have a number of features to prevent third parties from tampering with and/or falsifying the logged data. The security features are as follows:
· After initiating the data logging, close the logger door and insert a lock into the hole in the logger case. This prevents the logger door from being open, which physically prevents a third party from connecting to the logger and changing or accessing the data.
· Each logger comes with a factory set unique logger id. The logger id is always displayed in the logger status window and the data summary window. The logger id cannot be written by the user. This prevents somebody from switching loggers once the data is collected.
· Once logging has started, parameters such as sample rate, logging start time, logging sample counter, etc. cannot be changed without first clearing the recorded temperature and the alarm data. This prevents gathering many data samples at a fast sample rate and then lowering the sample rate to give the appearance that the data was recorded over a longer period of time.
· The LOGiT logger has an internal recording session counter. This counter counts how many times the logger was setup to record data. This counter cannot be reset even by unplugging the battery. This counter can be used to guarantee that the LOGiT data has not been cleared during a given period of time. If you know the value of the session after the logging session has started, you can guarantee that the LOGiT data has not been falsified if the session counter did not change. The session counter is available in the data summary window. These counters are read only and cannot be written to externally.
· The LOGiT internal real time clock cannot be changed during the logging session.
· The calibration data is password protected. This prevents a third party from recalibrating the unit to yield a false data and alarm reading.
· Calibrating the logger erases the logged data from the logger memory. This prevents somebody from adjusting the logged data after a recording is made.