Two-Wire Radar Level Sensor | Loop-Powered 80GHz FMCW Radar Transmitter

The two-wire radar level sensor is a loop-powered industrial level measuring device designed for simplified field wiring and low-energy consumption operation. Different from conventional four-wire instruments that require separate power and signal cables, this two-wire radar adopts an integrated loop power supply design, completing DC power acquisition and 4-20mA signal output through only one pair of wires. Built with advanced 76–81GHz FMCW radar technology, it provides continuous and reliable non-contact level monitoring for liquids and bulk solids, covering most conventional industrial storage and process scenarios.

Optimized for on-site construction simplicity, this loop-powered radar transmitter eliminates complex wiring layout and extra power distribution accessories. It features low heat generation and ultra-low power consumption, fully adapting to intrinsic safety explosion-proof systems. It serves as an economical and practical upgrade solution for industrial level measurement projects that prioritize easy installation, stable operation and budget control.

Two-wire loop power supply is a mature and reliable industrial instrument wiring solution, specially optimized for field construction and long-term stable operation:

Simplified Wiring Layout: Only one pair of cables is required for both power supply and signal transmission, greatly reducing on-site wiring workload, cable usage and construction cycle.

Ultra-Low Power Consumption: Low-energy circuit design ensures minimal operating power consumption, low heat generation and higher operational safety, suitable for long-term uninterrupted operation.

Excellent Intrinsic Safety Adaptability: Matches various intrinsic safety explosion-proof barriers, perfectly applicable to flammable and explosive hazardous industrial sites with strict power consumption limits.

Stable Long-Distance Transmission: Integrated loop signal transmission effectively resists on-site electromagnetic interference, maintaining consistent and accurate level signal feedback for long-distance cable transmission.

Lower Comprehensive Cost: Reduces cable procurement, wiring labor and later maintenance costs, delivering higher cost performance for conventional industrial monitoring projects.

High-Precision 80GHz Narrow Beam Detection

Adopting 76–81GHz high-frequency FMCW radar technology, the sensor outputs concentrated narrow-angle microwave beams with strong directional accuracy. It effectively avoids false echoes from tank walls, internal pipelines and structural obstacles, maintaining stable measurement in environments with slight dust and steam interference.

Non-Contact Maintenance-Free Structure

The non-contact measuring mode avoids direct contact with measured media, preventing corrosion, adhesion and mechanical wear. It requires no routine cleaning or maintenance, adapting to long-term continuous operation in conventional industrial working conditions.

High Compatibility with Control Systems

The standard two-wire loop output is universally compatible with mainstream PLC, DCS and secondary display instruments. It supports quick system docking without signal converters or auxiliary power equipment, realizing fast on-site commissioning and startup.

Rugged Industrial Protection Performance

Equipped with fully sealed IP65 housing and professional intrinsic safety explosion-proof design, the transmitter adapts to indoor workshops, outdoor storage yards and various harsh industrial environments, ensuring reliable long-term operation.

Below are standard technical parameters of the two-wire loop-powered radar level sensor for industrial model selection and engineering reference.

This two-wire loop-powered radar level sensor is ideal for industrial projects requiring simple wiring, low power consumption and safe operation, widely used in various conventional level monitoring scenarios:

General chemical storage tanks and buffer vessels

Water treatment pools, sewage tanks and municipal water facilities

Grain, building material and light industrial powder silos

Petrochemical low-risk storage and process containers

Factory automatic production line medium level monitoring

Compared with four-wire radar transmitters, this two-wire loop-powered radar features simpler wiring structure, lower power consumption and higher construction efficiency. It avoids redundant circuit design and potential failure risks caused by complex wiring. With stable measuring performance and wide system compatibility, it provides a more lightweight and cost-effective level measurement solution for conventional industrial automation projects.

Q1: What is the difference between two-wire and four-wire radar level sensors?

Two-wire radar adopts loop power supply design, using one pair of wires for both power and signal transmission with low power consumption and simple wiring. Four-wire radar requires independent power and signal lines, suitable for high-power and multi-function working scenarios. Two-wire models are more cost-effective for conventional monitoring.

Q2: Is the two-wire radar suitable for explosion-proof areas?

Yes. Ultra-low power consumption design perfectly matches intrinsic safety explosion-proof systems. It is widely used in flammable and explosive hazardous sites with strict power consumption and safety requirements.

Q3: Does two-wire wiring affect signal stability?

No. Optimized loop circuit and anti-interference design ensure stable 4-20mA signal output. It maintains accurate level data transmission even in long-distance wiring and complex electromagnetic environments.

We provide targeted configuration and installation matching services for two-wire radar level sensors according to different working conditions. If you have special requirements for measuring range, installation method or site safety standards, contact our technical team for professional model selection and customized solution support.

Contact now

Hot Tags: two-wire radar level sensor | loop-powered 80ghz fmcw radar transmitter, China two-wire radar level sensor | loop-powered 80ghz fmcw radar transmitter manufacturers, suppliers, factory