The Fuji PXF4APA2-FBKA1 is a self-tuning 1/16 DIN (48 x 48mm) compact temperature and process controller with a 50ms sampling speed. It's a current-production part, so you're not hunting for NOS or crossing fingers on a last-time buy.
What the 50ms sampling means on the line
A 50ms sampling speed means this controller catches rapid temperature swings — think injection molding nozzle zones, hot-runner control, or any process where a slow loop lets overshoot bake a batch. For a 1/16 DIN package, that's fast enough for most single-zone thermal processes that don't need a high-speed PLC module. The self-tuning algorithm handles PID coefficient setup, so you don't need a laptop on commissioning day.
The 1/16 DIN (48 x 48mm) cutout is the standard panel-mount footprint — drops into any existing DIN-sized hole without adapter plates. Depth is compact enough that it doesn't crowd the backplane wiring in a shallow enclosure. For a controls integrator wiring up a multi-zone oven or a packaging line heat-seal station, this form factor fits alongside other 1/16 DIN instruments in the same panel door.