The Omron 61F-G1P 220AC is a high/low level liquid level controller from the 61F series, designed to detect and control liquid levels in tanks, reservoirs, and process vessels using conductive probes. It operates on a 220VAC supply and outputs through a SPDT relay (2 Form C) rated at 5A @ 200VAC. The sensitivity adjustment covers 0 to 4kOhm, letting you tune the detection threshold for different liquid conductivities — from relatively pure water to conductive process fluids. The control-to-sensor distance can reach up to 1km, which suits remote tank farms or large industrial sites where the controller panel sits far from the vessel. Built-in features include alarm-low contact output and idling prevention logic, which helps avoid pump dry-running or overflow conditions without needing an external timer or auxiliary relay.
The unit mounts via a socketable octal base — 15-pin plug-in termination. That means you wire the socket once, then the controller module plugs in for quick replacement without disturbing the panel wiring. Standard for panel builders who want field-swappable level controls.