Level Transmitter
Every tank, silo and well has a level, and plants usually need to know it all the time, not just at a given point. A level transmitter measures that level continuously and sends it out as an electrical signal. Control systems use the signal to run pumps, trigger alarms and keep inventory records. Which type of transmitter works best depends on the liquid or solid, the vessel and the conditions around it.
Levtron Instruments Pvt. Ltd. is a Pune-based manufacturer and supplier of level instruments, including level switches, level indicators and pressure instruments. This page covers its range of continuous level transmitters: radar, ultrasonic, capacitance, hydrostatic submersible and float. It explains how each works, where they are used and how to specify one.
What Is a Level Transmitter?
A level transmitter is an instrument that measures level continuously and converts the reading into a standard output, most often a 4 to 20 mA signal. Several technologies are used. Radar and ultrasonic transmitters send a pulse and time the echo from the surface. Capacitance transmitters sense how the material between two electrodes changes capacitance. Hydrostatic transmitters measure the pressure of the liquid column above a sensor. Float transmitters track a magnetic float with reed switches.
Why Choose Level Transmitter From Levtron?
No single technology suits every vessel, so a supplier with several options is useful. Here is what Levtron offers buyers in Pune:
- Five Measuring Technologies: Radar, ultrasonic, capacitance, hydrostatic and float transmitters are all in the range, so the technology can be matched to the application.
- Calibrated and Tested at the Factory: Each transmitter is made in India and is tested and calibrated before dispatch, so it can be installed and commissioned on delivery.
- Standard Outputs for Control Systems: Most models give 4 to 20 mA, and RS485 Modbus RTU and relay outputs are offered on selected models, which suits PLC, DCS and telemetry connections.
- Technical Support From Pune: Levtron is located in Pune, so local buyers can discuss the medium, vessel and range with the manufacturer before choosing a model.
- Catalogues and Manuals Online: Product catalogues and user manuals are published on the Levtron website for the transmitters, which supports selection and installation planning.
Applications of Level Transmitters
- Water and Wastewater Tanks: Raw water tanks, clarifiers, dosing tanks, effluent pits and cooling tower basins are monitored continuously for pump control and alarms.
- Chemical and Acid Storage: Corrosive acids, alkalis, solvents and reagents can be measured with non-contact or PTFE-insulated sensors, depending on the transmitter chosen.
- Fuel and Oil Tanks: Diesel, petrol and lubricating oil tanks, generator day tanks and hydraulic reservoirs rely on continuous readings for inventory and refilling.
- Deep Wells, Rivers and Reservoirs: Submersible hydrostatic transmitters log water level in borewells, canals, dams and overhead tanks, and support pump automation.
- Silos and Bulk Solids: Radar transmitters measure through dense dust and vapour, with a range of up to 120 m, in tall silos holding cement, grain and similar materials.
- Sumps and Open Channels: Ultrasonic transmitters control pumps in sumps and lift stations, and monitor flow over weirs and flumes in open channels.
In each case, the transmitter passes continuous level data to a DCS, PLC or telemetry system.
Salient Features of Level Transmitters
- Radar Transmitter (FMLT-1800LS): A 76 to 81 GHz FMCW radar with a 3° beam, ±1 mm accuracy and a range up to 120 m, rated to +200°C for demanding vessels.
- Ultrasonic Transmitter (LULT-2300L): A non-contact unit for ranges from 5 m to 40 m, with ±0.3% accuracy, a backlit LCD, temperature compensation and false-echo filtering.
- Capacitance Transmitter (CPLT-1200L): A PTFE-insulated probe with rigid lengths to 3 m or a flexible rope to 30 m, ±1% accuracy, 0.5 mm resolution and push-button calibration.
- Hydrostatic Transmitter (HSLT-2000L): An IP68 submersible probe with a 316L diaphragm and vented cable, spanning 0 to 1 m up to 0 to 200 m of water column at ±0.5% accuracy.
- Float Transmitter (MFLT-1100L): A magnetic float and reed chain giving 5 mm or 10 mm resolution over 300 to 4000 mm, with ±0.5% accuracy and flanged or threaded connection.
- Output Signals: A 4 to 20 mA loop is standard, with RS485 Modbus RTU on most models and programmable alarm relays on the ultrasonic version.
- Enclosures and Hazardous Areas: IP65 to IP68 protection is offered depending on the model, and IP66 flameproof Ex-d housings are available on selected capacitance and float transmitters.
Benefits of Choosing the Right Level Transmitter
- Continuous Information: Unlike a switch, a transmitter reports the level at every moment, so operators see trends and plan refills or discharges in advance.
- Technology Matched to the Job: The right principle for the medium, whether radar for dust, ultrasonic for water or capacitance for chemicals, gives more dependable readings.
- Safer and Cleaner Measurement: Non-contact radar and ultrasonic units avoid probe corrosion and clogging, and they reduce how often anyone needs to enter or open a vessel.
- Accuracy Suited to the Purpose: Accuracy figures range from ±1 mm on radar to ±0.3% to ±1% of full scale on other types, so you can pick what the process needs.
- Easy Integration: Standard 4 to 20 mA and Modbus outputs connect to most PLC, DCS and telemetry systems without special converters.
- Low Maintenance Designs: Solid-state and non-contact designs have few moving parts, so most of these transmitters need little attention after commissioning.
Level Transmitter Supplier in Pune
Levtron Instruments supplies level transmitters to industrial plants, water and wastewater facilities, fuel storage sites and process units in Pune, for liquids, slurries and bulk solids.
To help select a model, share the medium, vessel height, operating temperature, pressure and the required output signal. Please confirm delivery timelines for Pune with our team when you enquire.