Every LogTag temperature logger is tested in the factory as part of our quality control. The test results are stored in memory and you are able to print your own calibration certificate using the LogTag Analyzer software.
This certificate is useful if you are being audited and they want proof of the reliability of the logger.
The certificate is accessed through the Configuration panel.
Connect the logger to the computer
Choose Configure from the LogTag menu
Press the Certificate of Calibration button in the top right of the screen
If the button is disabled, it is either too new or too old.
If it is a brand new logger, then you will need to configure and start the logger first, then go back to the configuration panel and the button should be available.
Some very old loggers may not have the certificate saved and will also show the button as disabled.
Latency, when it comes to temperature logging, refers to the delay between a change in temperature and when that change is detected and recorded by the logger. This delay can be due to the sensor’s design, the materials it’s placed in, or the logging interval. While it might sound like a disadvantage, latency can actually serve a useful purpose in certain environments—particularly where short-term temperature spikes are common but not harmful.
For example, in a busy commercial fridge, the temperature may briefly rise every time the door is opened. A logger with high latency won’t immediately react to these short fluctuations, helping to avoid unnecessary alarms or false data indicating a problem when there isn’t one. In these cases, a slight delay in response acts like a filter, focusing attention on real issues—such as prolonged exposure to unsafe temperatures—while ignoring the everyday ups and downs that don’t affect product quality or safety.
Depending on the type of logger you have, connecting your logger to your PC means either:
First Generation LogTags use a separate Reader (sometimes called a dock) for configuration and for downloading recorded data.
The Second Generation loggers only require a USB port or cable. Apart from saving the cost of the Reader, this makes them much better suited for shipping, because the recipient doesn’t need a LogTag Reader to download a report about the shipment’s journey.
