The Fuji Electric PXF4APR2-FBSA1 is a self-tuning 1/16 DIN (48 x 48mm) compact temperature and process controller with a 50ms sampling speed. The self-tuning algorithm auto-adjusts PID parameters on startup, so you can swap this into an existing panel without re-tuning the loop manually.
Panel Fit
The 1/16 DIN cutout (48 x 48mm) is the standard panel-mount footprint for temperature controllers. The 50ms sampling speed suits it for loops where the process variable changes faster than once per second — think hot-runner temperature control or small electric kilns.