Level Flow Sensors, Automation Grade : Lpm

Level Sensors measure the height or amount of liquid, powder, or bulk solids inside tanks or silos.   Flow Sensors measure the rate and volume of liquids or gases moving through a pipe or duct. process control, automation, water treatment, pharma, and manufacturing. Float Level Switch Liquids Point (High/Low) Up to 10m ON/OFF, Relay ±1% leelavati automation  Ultrasonic Level Liquids/Solids Continuous (Non-contact) 0.2m–10m+ 4–20 mA, RS485 ±0.25% Capacitive Level Liquids/Granular solids Point/Continuous Up to 5m Digital, Analog ±1–2% Radar Level Sensor Liquids/Chemicals Continuous (Non-contact) Up to 35m+ 4–20 mA, HART ±0.1% Hydrostatic Liquids (tanks) Continuous Up to 200m 4–20 mA ±0.5% Turbine Flow Meter Clean Liquids Volumetric Flow 0.1 – 10,000 L/min Pulse, 4–20 mA ±0.5 – 1% Electromagnetic Flow Conductive Liquids Volumetric Flow 0.05 – 20 m/s 4–20 mA, Modbus ±0.2 – 0.5% Ultrasonic Flow Meter Liquids, Gases Flow Velocity 0.1 – 30 m/s 4–20 mA, RS485 ±1% Vortex Flow Meter Gases, Steam Mass Flow Wide range Pulse, Analog, HART ±0.5% Rotameter Low-cost liquids/gases Visual Flow Low–medium flow Mechanical reading ±2–5% Float Level Switch  Ultrasonic Level Sensor leelavati automation  Radar Level Sensor  Electromagnetic Flow   Turbine Flow Meter  Ultrasonic Flow Meter  Vortex Flow Mete Depends on steam/gas calibration Applications 🔹 Level Sensors Water & wastewater plants   Beverage & chemical tanks   Silo grain and powder level   Oil tanks and storage Flow Sensors Water supply pipelines   Cooling systems  leelavati automation  Chemical dosing systems   Steam and compressed air monitoring   HVAC flow balancing Float-Based Buoyancy of liquid lifts or lowers a float connected to a switch or magnet. Ultrasonic Emits sound waves; the sensor calculates level by measuring echo return time. Radar (FMCW or Pulse) Uses microwave signals; unaffected by vapors, foam, or temperature. Capacitive Detects change in capacitance caused by liquid/material in contact with the probe. Hydrostatic Measures pressure at tank bottom to calculate height of liquid above. Optical (IR/LED) Detects light reflection through liquid or air interface. L/min (liter/min) Volumetric Flow Cooling, lubrication m³/h (cubic meter/hr) Bulk flow Water, gas supply mm / cm Level sensors Tank level monitoring (ultrasonic, radar) % Relative level Chemical mixing tanks lectromagnetic (Magmeter) Faraday’s law: flow of conductive liquid induces voltage in a magnetic field. leelavati automation  Ultrasonic (Transit-Time or Doppler) Measures time delay between upstream and downstream ultrasonic pulses. Turbine Liquid turns a rotor; rotational speed is proportional to flow. Vortex Shedding Measures vortices created downstream of an obstruction (Von Kármán effect). Thermal Mass Measures cooling effect of gas/liquid on a heated element. Positive Displacement Measures actual volume by trapping fluid in compartments and counting revolutions. Medium Type Liquid, solid, gas, slurry, corrosive, food-grade, explosive Measurement Type Point level (ON/OFF) or Continuous Range Tank depth, pipe size, flow speed Environment Temperature, pressure, humidity, dust, vibration Mounting Constraints Top, bottom, side-entry, inline, clamp-on Power Supply & Output 24V DC, 230V AC, 4–20 mA, Modbus, HART, relay, digital Certifications IP rating, ATEX, FDA, IECEx, CE, SIL Maintenance Non-contact types need less cleaning in dirty or corrosive media Integration in Industrial Systems 🖥️ Automation Platforms Supported: PLC/SCADA Systems: Siemens, Allen Bradley, Schneider   DCS (Distributed Control Systems)   IoT Cloud Platforms: MQTT, OPC-UA, Azure IoT, AWS IoT   Edge Controllers: With RS485, Modbus RTU/TCP, CANbus   🔌 Common Protocols: Analog: 4–20 mA, 0–10 V   Digital: Modbus RTU, Modbus TCP, HART, Profibus, IO-Link   Wireless: LoRaWAN, NB-IoT, Bluetooth (for portable apps) Water Treatment Tank levels, well monitoring Inlet/outlet flow monitoring Chemical Processing Reactor and mixer levels, toxic liquids