80GHz FMCW Radar Level Transmitter (Solids & Liquids)

Made in India 100% Tested & Calibrated

Model: FMLT-1800LS

The FMLT-1800LS is an advanced 76GHz–81GHz Frequency Modulated Continuous Wave (FMCW) non-contact radar level transmitter. Featuring a 5GHz scanning bandwidth and an ultra-narrow 3° beam angle, it delivers millimeter-level accuracy (±1mm) across ranges up to 120 meters. It penetrates dense dust, vapor, foam, condensation, and extreme temperatures (+200°C), making it the premier continuous level measurement solution for storage silos, tall process vessels, and aggressive chemical tanks.

76-81GHz FMCW Radar Ultra-Narrow 3° Beam Angle ±1mm High Precision Accuracy Up to 120m Measuring Range 4-20mA HART & RS485 Modbus

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Applications & Suitability

Deep Silos & Bulk Solids: Continuous level measurement in tall cement, fly ash, lime, grain, ore, and plastic pellet silos with extreme dust.

Liquid Storage & Chemical Vessels: Accurate non-contact measurement in acids, alkalis, solvents, fuels, wastewater, and syrups.

Agitated & Turbulent Tanks: High-frequency signal ignores agitator blades, surface ripples, and foam.

High Temperature & High Pressure Vessels: Withstands process temperatures up to +200°C and pressures up to 2 MPa (20 Bar).

Aggressive Corrosive Media: Available with PTFE lens antenna shield, quartz isolation flange, and anti-corrosion materials.

The FMLT-1800LS provides accurate, continuous process level data to your DCS, PLC, and telemetry systems.

Model	FMLT-1800LS
Technology	76GHz to 81GHz FMCW Radar (Frequency Modulated Continuous Wave)
Measuring Range	Standard 35m / 85m / Max 120m
Measurement Accuracy	±1 mm
Antenna Beam Angle	3° (standard lens) / 8°
Dielectric Constant (εr)	≥ 2.0 (suitable for low to high dielectric media)
Power Supply	18 to 28 V DC (2-Wire Loop Powered / 4-Wire System < 1W)
Analog Output	4 to 20 mA Current Loop with HART Protocol
Digital Output	RS485 Modbus RTU
Local Display	Backlit Graphic LCD with Echo Curve & Diagnostics
Blind Zone	0.1 m (10 cm)
Process Temperature	-40°C to +200°C (High temp version with cooling fins)
Process Pressure	-0.1 to 2.0 MPa (-1 Bar to +20 Bar)
Process Connection	Threaded G1-1/2" / 2" NPT, or Flanged DN50 to DN200 ANSI/JIS
Antenna Type	PTFE Lens Antenna / PEEK / Quartz Isolation
Housing Material	Die-cast Aluminium Alloy IP67 / Stainless Steel SS316
Cable Entry	2 x M20 x 1.5 Conduit Entries

80GHz FMCW Radar Level Transmitter (Solids & Liquids)

Applications & Suitability

Features & Benefits

Working Principle of 80GHz FMCW Radar Level Transmitter (Solids & Liquids)

Technical Specifications - FMLT-1800LS