In modern process automation, precise level measurement is critical for safety, efficiency, and product consistency. From oil separators and chemical reactors to storage tanks and water treatment systems, industries rely on sensors that can withstand challenging conditions while providing accurate and stable readings.

The Rosemount 5300  Level Transmitter, part of Emerson’s world-class Rosemount product family, is designed to deliver unmatched precision, reliability, and performance in both liquid and interface measurement applications.

Built with advanced radar technology, this transmitter provides maintenance-free operation and superior diagnostics, making it a trusted solution for demanding industrial processes.

What Is the Rosemount 5300 Level Transmitter?

The Rosemount 5300 Series is a guided wave radar (GWR) level transmitter that provides continuous level and interface measurement in liquids, slurries, and some solid applications.

Unlike non-contact radar devices, the 5300 uses radar pulses guided along a probe (rod or cable) inserted into the process medium. This ensures reliable measurement even in environments with vapor, foam, or varying dielectric conditions.

The transmitter is available in two models:

• Rosemount 5301: For level measurement of liquids and solids.

• Rosemount 5302: For simultaneous interface and total level measurement in applications with two immiscible liquids (e.g., oil and water).

How the Rosemount 5300 Works

The Rosemount 5300 operates on the time-domain reflectometry (TDR) principle — a proven radar technology for accurate level measurement.

Here’s how it works step-by-step:

1. The transmitter sends low-energy microwave pulses down a probe (rod or flexible cable) into the tank or vessel.

2. When the radar pulse encounters a change in dielectric constant (such as a liquid surface or interface), part of the signal reflects back.

3. The transmitter measures the time delay between the emitted and reflected signal.

4. Based on the speed of light and the known characteristics of the probe, it calculates the exact level position.

Because the radar signal travels along the probe, it remains stable and unaffected by vapor, turbulence, or foam — ensuring dependable measurements in all process conditions.

Key Features of the Rosemount 5300 Level Transmitter

1. Guided Wave Radar Technology

• Provides accurate and stable level readings regardless of process conditions.

• Unaffected by vapor, foam, or temperature changes.

2. Dual-Level and Interface Measurement

• The 5302 model simultaneously measures total and interface levels for greater process visibility.

3. Exceptional Accuracy

• Delivers up to ±3 mm (0.12 in) accuracy for critical process control.

4. Wide Application Range

• Handles pressures up to 260 bar (3,770 psi) and temperatures up to 400°C (752°F).

5. Advanced Diagnostics

• Built-in Rosemount RadarMaster+ software for configuration, diagnostics, and echo curve analysis.

• Detects buildup, coating, or dielectric changes early for predictive maintenance.

6. Multiple Probe Designs

• Available in coaxial, twin lead, single lead, or flexible cable designs for different tank types and materials.

7. Communication and Integration

• Supports HART®, FOUNDATION Fieldbus™, and Modbus® protocols for seamless system integration.

8. Maintenance-Free Construction

• No moving parts, ensuring long-term reliability and minimal servicing.

Advantages of the Rosemount 5300 Series

1. Reliable in Harsh Conditions

Performs consistently even with vapor, foam, temperature variations, and high-pressure conditions.

2. Maintenance-Free Operation

Solid-state radar technology with no mechanical wear ensures long service life.

3. Enhanced Process Safety

Accurate level data helps prevent overfilling, dry running, and equipment damage.

4. Long-Term Stability

Radar technology provides stable performance over years of continuous operation.

5. High Measurement Flexibility

Covers a wide range of applications — from storage tanks to process vessels and interface detection.

6. Diagnostic Intelligence

Advanced predictive diagnostics help minimize unplanned shutdowns and maintenance costs.

7. Easy Commissioning

Quick configuration and calibration using intuitive software tools or handheld communicators.

Applications of the Rosemount 5300 Guided Wave Radar Level Transmitter

The Rosemount 5300 is used across industries requiring accurate level and interface measurements in challenging environments.

1. Oil and Gas

• Interface and total level measurement in separators and storage tanks.

• Performs reliably under high pressure, temperature, and vapor conditions.

2. Chemical and Petrochemical

• Measures liquid levels in reactors, condensers, and distillation columns.

• Resistant to corrosive and aggressive media.

3. Power Generation

• Ideal for boiler drum, feedwater, and condensate system monitoring.

• Maintains accuracy in high-temperature, high-pressure systems.

4. Water and Wastewater

• Monitors level in clarifiers, sumps, and reservoirs.

• Unaffected by foam, vapor, or varying dielectric properties.

5. Food and Beverage

• Used in process tanks, blending systems, and storage applications.

• Hygienic probe designs support sanitary processing environments.

6. Mining and Pulp & Paper

• Measures slurry, pulp, and chemical levels in process tanks.

• Withstands abrasive and dense media.

Technical Specifications Overview

Installation and Maintenance Tips

To ensure reliable and long-lasting performance:

• Select the correct probe type for the medium (liquid, slurry, or solid).

• Install the transmitter away from tank inlets or agitators to minimize signal disturbance.

• Keep the probe clean in sticky or high-viscosity applications.

• Use Rosemount RadarMaster+ for echo curve verification during setup.

• Inspect process seals periodically in high-pressure or corrosive systems.

Because of its solid-state design, the 5300 requires little to no maintenance throughout its lifecycle.

Why Choose The Transmitter Shop

The Transmitter Shop (TTS) supplies new and remanufactured Rosemount 5300 Series Level Transmitters, all factory-tested, calibrated, and certified for performance.

Why Industries Rely on TTS:

• Proven product quality and factory verification

• Compatibility with existing process systems

• Cost-effective, ready-to-ship inventory

• Expert support and technical assistance

• Reliable solutions for critical process applications

Every transmitter from TTS is thoroughly inspected and tested to ensure OEM-level accuracy, durability, and reliability — making it a trusted choice for industrial users worldwide.

5 Frequently Asked Questions (FAQs)

1. What makes the Rosemount 5300 different from other radar transmitters?
It uses guided wave radar (GWR) technology, which provides accurate measurements even in the presence of vapor, foam, or turbulence.

2. Can the 5300 measure both level and interface?
Yes. The 5302 model is designed for simultaneous total and interface measurement in two-liquid systems.

3. Does the 5300 require calibration?
It comes factory-calibrated, requiring minimal field adjustment during installation.

4. Can it handle extreme process conditions?
Yes. It operates under high temperature (up to 400°C) and pressure (up to 260 bar) environments.

5. Is maintenance required?
No moving parts mean virtually maintenance-free operation and long service life.

Conclusion

The Rosemount 5300 Guided Wave Radar Level Transmitter stands as a benchmark for precision and reliability in industrial level measurement. Its advanced radar technology, diagnostic intelligence, and rugged design make it ideal for complex applications where accuracy and uptime are critical.

From oil and gas separators to chemical storage tanks, the 5300 provides long-term performance, superior stability, and confidence in every reading.

The Transmitter Shop proudly offers factory-tested, performance-verified Rosemount 5300 Level Transmitters, ensuring your operations benefit from proven accuracy, reliability, and value.