PRE571A-RSL Radar Level Transmitter
PRE571A-RSL Radar Level Transmitter
The PRE571A-RSL Radar Level Transmitter is an advanced 80GHz FMCW radar sensing instrument engineered to deliver exceptionally accurate, stable, and reliable non-contact level measurement for both liquids and solids. Leveraging high-frequency microwave technology, a narrow beam angle, and excellent anti-interference capability, this radar device maintains consistent performance in a wide range of industrial environments, including water treatment, chemical processing, industrial storage tanks, and powder silos.
PRE571A-RSL Radar Level Transmitter – High-Precision 80GHz FMCW Level Measurement Solution
The PRE571A-RSL Radar Level Transmitter is an advanced 80GHz FMCW radar sensing instrument engineered to deliver exceptionally accurate, stable, and reliable non-contact level measurement for both liquids and solids. Leveraging high-frequency microwave technology, a narrow beam angle, and excellent anti-interference capability, this radar device maintains consistent performance in a wide range of industrial environments, including water treatment, chemical processing, industrial storage tanks, and powder silos.
With its compact construction, user-friendly installation, optional Bluetooth connectivity, and HART communication interface, the PRE571A-RSL Radar Level Transmitter is ideally suited for modern automation systems that demand high precision, long-term durability, and minimal maintenance.
1. Product Introduction
The PRE571A-RSL operates using Frequency Modulated Continuous Wave (FMCW) radar technology. It emits a continuous 80GHz radar signal toward the surface of the medium. By analyzing the frequency difference between the transmitted and reflected waves, the sensor calculates the distance with exceptional accuracy.
Thanks to advanced digital signal processing, the transmitter ensures stable and repeatable measurements even in the presence of steam, foam, dust, turbulence, condensation, or rapidly changing temperatures. Its intelligent echo-processing algorithms minimize false reflections and enable reliable measurement in tanks of various shapes—flat-bottom, conical, or cylindrical—making it suitable for both static and dynamic media.
2. Key Features of the PRE571A-RSL Radar Level Transmitter
High-frequency 80GHz FMCW Radar
The narrow 6° beam angle minimizes interference from tank walls and internal components, ensuring accurate measurement in compact or obstructed installations. This enhances stability in confined spaces and tall vessels.
Exceptional ±2 mm Accuracy
The device provides high-precision readings essential for industrial processes such as dosing, batching, inventory control, and safety monitoring.
Durable ABS/PVDF Construction
The robust housing materials offer excellent corrosion resistance, supporting long-term operation in challenging environments such as chemical plants, wastewater facilities, and harsh outdoor conditions.
Smart Communication Options
With 4–20mA/HART output and optional Bluetooth connectivity, the PRE571A-RSL allows users to configure parameters, perform diagnostics, and monitor data via PC software, handheld HART communicators, or smartphone applications.
Strong Anti-Interference Performance
Equipped with digital filtering and vibration-resistant design, the device maintains accuracy even with foam, vapor, dust, or fluctuating surface levels.
3. Technical Specifications
| Description | Specification |
|---|---|
| Measuring Range | 10 m / 20 m / 35 m |
| Accuracy | ±2 mm |
| Beam Angle | 6° |
| Blind Zone | 0.05 m |
| Frequency | 80 GHz FMCW |
| Antenna Material | ABS |
| Process Connection | G1½” A |
| Installation Thread | G1″ A |
| Process Temperature | –40°C to +80°C |
| Power Supply | 16–26 VDC |
| Process Pressure | –0.1 to 0.3 MPa |
| Output Signal | 4–20 mA (two-wire) / HART optional |
| Digital Output | RS485 / Modbus |
| Bluetooth | Optional |
| Explosion-Proof Option | Ex ia IIC T6 Ga |
| Protection Class | IP68 |
4. Installation Advantages
Proper installation is essential to achieving optimal performance from the PRE571A-RSL Radar Level Transmitter. Recommended guidelines include:
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Install the device 1/6 of the tank diameter away from the wall to reduce interference.
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Maintain at least 200 mm clearance between the sensor and the tank roof.
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Avoid positioning the radar directly above inlets, agitators, or areas with severe turbulence.
The transmitter can also be mounted through short nozzles. Recommended nozzle lengths:
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DN80: ≤300 mm
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DN100: ≤400 mm
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DN150: ≤500 mm
Following these guidelines helps minimize false echoes and enhances measurement reliability for both liquids and solids.
5. Communication & Debugging
The PRE571A-RSL provides multiple convenient configuration and diagnostic options:
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PC-based configuration via HART interface
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Handheld HART communicators for on-site programming
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Bluetooth debugging using mobile devices (optional feature)
These flexible communication methods streamline installation, calibration, and maintenance activities.
6. Application Areas
The versatility of the PRE571A-RSL Radar Level Transmitter makes it suitable for diverse industrial applications, including:
– Water & Wastewater Treatment
Ideal for reservoirs, pumping stations, clarifiers, sludge tanks, and treated water storage.
– Chemical & Petrochemical Processing
Excellent corrosion resistance and non-contact measurement make it suitable for closed vessels, volatile media, and corrosive chemical environments.
– Food & Beverage Industry
Applicable to ingredient tanks, mixing vessels, and hygienic storage silos—provided material compatibility is satisfied.
– Solid & Powder Measurement
Effective for powders, granules, grains, pellets, and bulk materials, even in dusty conditions.
– Industrial Automation & Process Control
Supports accurate inventory monitoring, batch control, and continuous level tracking with stable, repeatable performance.
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