Level controller for tank fill/drain logic
The Omron 61F-GP-NL 2KM AC120 is a high/low level controller that switches a SPDT (2 Form C) relay when the measured resistance between its sensor probes crosses the adjustable sensitivity threshold of 0 to 1.3 kOhm. It runs on 120 VAC supply and the relay contacts are rated 3 A at 250 VAC for pilot-duty pump or valve coils. The 2 km maximum distance between the controller and the sensor probes means the probes can sit at the far end of a large tank farm or a long sump run without signal degradation.
Socketable octal-base integration
Mounting is socketable via an 11-pin octal plug-in base. The controller plugs into a standard octal relay socket, which simplifies panel wiring and allows hot-swap replacement without disturbing the field wiring. Termination style is plug-in, 11-pin (octal) — the same footprint as many general-purpose octal relays, so the panel layout stays consistent.