Accurate Thermal Systems TVS Temperature Validation Software. ATS has developed and now offers Temperature Validation Software (TVS) that works with all of our Fluidized Temperature Bath models. The TVS software will be very useful for customers who need to maintain documentation for validation of their process to meet Quality directives and/or FDA requirements. The software records temperatures from the Fluidized Bath controller at the sample rate you set and temperature range limit (window) that the process should maintain. The collected readings can be then exported to as a PDF file or can be printed for records.