The TC-08 is not designed for use with PT-100 sensors. Does the fatal error occur if you are only using thermocouples?
Also, you may have a corrupt settings file - navigate to the following directory:
C:\Users\<Your user name>\AppData\Local\Pico Technology\
To access the AppData folder and below you will need to be able to view hidden folders within Windows:
- Go to C:\Users\<User Name> in Windows Explorer
- Click Tools -> Folder options
- Click the View tab, then under Hidden Files and Folders, select the tickbox to 'Show hidden files and folders', then click 'OK'.
In the Pico Technology folder there will be one or more folders with a long alphanumeric name. Please look for the Recorder.pls or settings.pls file and delete them.
Are there any messages with the error? If you navigate to Control Panel -> Performance and Maintenance -> Administrative Tools -> Event Viewer you might find something in the logs.
Please post the information here or send it to firstname.lastname@example.org