Panel fit and loop speed
The PXF9AER2-FVCA1: This is a 1/4 DIN (96 x 96 mm) panel-mount controller — the standard cutout for most process panels, so it drops into an existing hole without a bezel adapter. The 50 ms sampling speed means it reads the input and updates the output every 50 milliseconds, fast enough for most thermal loops (ovens, extruders, packaging seal bars) but not for sub-cycle power control.