Liquid Level Measurement for Tanks with iNut: Remote Monitoring, Overflow & Dry-Run Protection

Managing tanks manually always hides risk: someone has to climb to the top of the tank to peer at a dipstick, some sites call around asking "how much is left in the tank," and others only discover a problem once water has flooded the floor or a pump has run dry and burned out. Data is scattered, hand-recorded, and nobody knows the exact level right now — so every pumping, draining, or ordering decision is just a guess.

iNut takes level measurement to another level: sensors measure continuously, data is transmitted wirelessly to one place, the system automatically controls pumps and valves by threshold, and it alerts instantly when something is off. From domestic water tanks, underground reservoirs, and silos to chemical or oil tanks — the same approach, one monitoring screen.

There's no single sensor that "fits every tank." iNut pairs the right type to each environment: radar / ultrasonic for non-contact measurement from the tank top (suited to chemical tanks, wastewater, silos), hydrostatic (water-column pressure) submersible sensors for underground reservoirs, or float – capacitive for small tanks. Everything is converted into one standard signal via iNut RS485, reading level in percentage and liters, accurate down to the centimeter.

Tanks are usually scattered: on a rooftop, at the back of a warehouse, out at a pump station, or in the middle of a field. Running signal cables back to a control room is both costly and difficult. iNut RS485 combined with WiFi Mesh lets stations relay signals to each other, covering long distances without cable infrastructure; for truly remote sites, iNut PC collects the data and uplinks over 4G to the center. Stations run on solar power, so once installed, power supply is one less thing to worry about.

This is the most valuable part. Set two thresholds once: when the level reaches high (H) → iNut turns off the feed pump / closes the inlet valve to prevent overflow; when it drops to low (L) → it turns on the makeup pump / opens the valve and blocks dry-running to protect the pump. iNut PC at the edge layer runs this exact logic loop locally, independent of the network — if the Internet goes down, the tank is still protected.

Automation only brings peace of mind when someone actually gets notified. When the level crosses a threshold, an abnormal leak occurs (level dropping fast), or a pump fails, iNut PC instantly sends alerts via Email and Telegram with the tank name, current level, and timestamp. The person on duty gets the message within seconds and can act before it becomes an incident — instead of finding a flooded floor the next morning.

All tanks appear on one screen: percentage level, volume, rise/drop rate, and hourly-to-daily history. iNut Platform (self-hosted cloud) builds an intuitive SCADA dashboard, while the iNut app lets you view and adjust thresholds, and turn pumps on/off right from your phone, from anywhere. iNut Datalogger stores all data for reconciliation, report exports, and traceability when needed.

Outdoor tanks, pump stations in the middle of fields, reservoirs along riverbanks — places without stable grid power — iNut devices keep running continuously thanks to solar power and wireless transmission. The sealed enclosure withstands sun and rain, auto-syncs whenever there's signal, and iNut OPC (OPC UA / Modbus / XML-DA) is ready to integrate tank levels into a plant's existing SCADA/ERP. Install once, and the data keeps coming in on its own.

// Quick specs