The Omron 61F-GP-N8 AC24 is a High/Low Level liquid level controller from the 61F series, operating on a 24VAC supply. It uses a relay output with SPDT (2 Form C) contacts rated at 3A @ 250VAC, and its sensitivity range of 0 ~ 4kOhm covers conductive liquids from low-resistivity process water to higher-resistivity chemicals. The control-to-sensor distance extends up to 1km, making it suitable for remote tank monitoring where the controller is panel-mounted and the probes are at the vessel.
Integration Notes
The controller uses a socketable 8-pin octal base (Plug In, 8 Pin (Octal) termination style), which simplifies panel wiring and replacement without disturbing the field wiring. Mounting type is socketable — the controller snaps into a standard octal relay socket, so the panel builder wires the socket once and swaps the controller as a unit. The operating temperature range of -10°C to 55°C covers most indoor industrial environments, but if the panel sits near a hot process line, derating above 40°C is worth checking per the thermal curve in the datasheet.