The Omron 61F-GP-N AC240 is a High/Low Level controller from the 61F series, designed for conductive liquid level detection and control in tanks, reservoirs, and process vessels. It operates on a 240VAC supply and uses a relay output with SPDT (2 Form C) contacts rated at 3A @ 250VAC, making it suitable for driving pumps, valves, or alarms directly. The sensitivity range of 0 to 4 kOhm allows the unit to detect liquids with varying conductivity—from relatively pure water to more conductive process fluids—by sensing the resistance between probe electrodes. The control-to-sensor distance of up to 1 km means the controller can be sited remotely from the tank, useful for centralizing control panels in large plants.
Mounting and Termination
Socketable mounting via an 11-pin octal plug (termination style Plug In, 11 Pin (Octal)) means the controller can be swapped without rewiring—critical for MRO spares on a production line. The socket (ordered separately) mounts to a panel or DIN rail; the controller simply plugs in. This form factor is standard across the 61F family, so a replacement unit fits the existing socket and wiring.
For volume commitments or blanket orders, the global supply-demand balance for the 61F platform remains stable given its mature installed base in water/wastewater and process industries.