The Fuji Electric PXR3-AAC2-5BTA1 is an advanced, self-tuning 1/32 DIN temperature and process controller with 16 ramp / soak segments. This form factor fits tight panel cutouts where space is at a premium — common in cold-chain control cabinets where you need multiple zones in a single enclosure. The self-tuning algorithm handles PID autotune on startup, so commissioning a freezer or chiller loop doesn't require manual gain calculation.
Integration notes
At 1/32 DIN, the controller occupies a 48 x 24 mm panel cutout — roughly half the width of a 1/16 DIN unit. The 16 ramp/soak segments allow programming multi-step thermal profiles (freeze-thaw cycles, pasteurization holds, slow cool-downs) without an external PLC sequencer. Self-tuning means the PID constants are calculated during the first thermal excursion; for sub-zero applications, verify the probe type matches the controller's input range before the autotune cycle initiates.