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HR685 Complicated Conditions Guide Wave Radar Level Sensor

HR685 Complicated Conditions Guide Wave Radar Level Sensor delivers precise liquid level measurement in harsh industrial environments. Designed for oil & gas, wastewater, chemical, and HVAC systems, it ensures stable performance under high temperature and pressure. With advanced radar technology, it provides accurate, reliable monitoring even in complex tank conditions, making it ideal for process automation, marine systems, and industrial liquid management applications.

Category Level Sensors
Brand Holykell
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Technical details and application highlights

Review the complete description, feature set, and specification details before sending your inquiry.

The HR685 Complicated Conditions Guide Wave Radar Level Sensor is engineered for precise and reliable liquid level measurement in demanding industrial environments. Built with advanced guided wave radar technology, this sensor delivers consistent accuracy even under extreme temperature, pressure, and vapor conditions. It is widely used in industries requiring dependable level monitoring such as oil & gas, water treatment, chemical processing, and industrial automation systems.

Key Features

  • High accuracy measurement up to ±10mm
  • Stable performance in harsh and fluctuating conditions
  • Wide measuring range up to 15 meters
  • Flexible antenna options: single cable or single rod
  • Explosion-proof design for hazardous environments
  • Compatible with HART communication protocol
  • Easy integration with industrial control systems

Application

This radar level sensor is ideal for industries requiring continuous and accurate liquid level monitoring. It is extensively used in oil storage tanks, wastewater treatment plants, chemical reactors, HVAC systems, marine vessels, and vehicle-based liquid storage systems. It supports process control environments where reliability and safety are critical.

Design & Functionality

The HR685 uses guided wave radar technology to transmit microwave pulses along a probe. These pulses reflect off the liquid surface and return to the sensor, allowing precise calculation of the level. Its robust construction ensures resistance to temperature variations, pressure changes, and chemical exposure.

Total Crossed Beams

The guided wave design ensures minimal signal loss and stable signal transmission. This improves detection accuracy even in turbulent or foamy liquid surfaces, making it suitable for complicated process conditions.

Beam Pitch Options

The sensor supports different antenna configurations including single cable and single rod probes. These options allow flexibility in installation based on tank geometry, liquid type, and process requirements.

Intrinsic Synchronism

The sensor maintains stable signal synchronization, ensuring consistent measurement performance even in environments with vapor, dust, or interference. This feature enhances operational reliability in industrial applications.

Operational Advantages

HR685 offers long-term durability, low maintenance, and high operational efficiency. Its explosion-proof design makes it safe for hazardous zones, while its compatibility with standard industrial outputs ensures seamless integration. This results in improved process control, reduced downtime, and enhanced productivity.

Parameter

Specification

Suitable for MediumLiquids
Explosion-proof GradeExia IIC T6 Ga / Exd ia IIC T6 Gb
Measuring Range15m
Frequency500MHz–1.8GHz
AntennaSingle cable or single rod antenna
Accuracy±10mm
Process Temperature(-40~250)℃
Process Pressure(-0.1~2) MPa
Signal Output4–20mA / HART
DisplayFour LCD / Programmable
Power SourceTwo-wire (DC24V); Four-wire (DC24V / AC220V)
Shell MaterialAluminum / Plastic
ConnectionThread / Flange (optional)
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