What this controller is and who needs it
The Omron E5CC-QX2DUM-800 is a panel-mount process/temperature controller from the E5CC series, accepting RTD, thermocouple (B, E, J, K, L, N, PLII, R, S, T, U, W), 0–20mA, and 0–10VDC inputs over a span of -200°C to 2300°C. It runs on 24VAC/DC and drives two relay outputs plus a voltage output for an external SSR — a compact PID/on-off controller for machines where the power supply is 24V and you need both relay and solid-state drive. This variant uses a standard 45mm square panel cutout and an IP66-rated front bezel. The rear termination is an 11-pin octal plug-in base, requiring a matching socket for wiring.