The Accurate Thermal Systems FTBLL27 & FTBLL47 Fluidized Temperature Baths offer offer fully automatic fluidizing air control and an advanced PID temperature controller for thermal performance. The model FTBLL27 and FTBLL47 use a PID temperature controller that has four control zones for improved thermal results. Independent over temperature protection will disable heat if the temperature exceeds 610°C or if the air supply pressure drops below 60 PSI. Fluidizing air is automatically controlled by the system. The control box is mounted on an articulating arm so it can be moved out of the way for improved access to the bath. The horizontal and vertical position of the arm can be changed as well as angle for easy viewing. It is connected the main control box via a 15 way cable. An air flow meter mounted on the main control box displays Fluidizing air rates.