The IT3 has a hidden "Service" menu for calibrating temperature and pressure sensors. If you change the "Offset" value accidentally, you could over-pressurize the chamber. The user manual explicitly warns that only certified technicians should use the green "Service" key.
The IT3 is typically configured via a serial interface (RS232/RS485) or USB, depending on the revision, using Systec configuration software. systec it3 user manual
The Systec IT3 is a workhorse. While the user manual is vital for annual validation and advanced programming (like creating a F0 control cycle), the machine is surprisingly intuitive for daily use. The IT3 has a hidden "Service" menu for