Endress+Hauser Guided Radar Level Transmitters

Selection Methods for Endress+Hauser Guided Radar Level Transmitters

Introduction

Level measurement is a critical component in various industrial applications, ensuring process control, safety, and efficiency. Among the many technologies available, guided radar level transmitters have emerged as a reliable and versatile solution. E+H (Endress + Hauser) is a renowned provider of these devices, offering a wide range of guided radar level transmitters suitable for diverse industrial needs. This article will provide a comprehensive guide on how to select the appropriate Endress+Hauser guided radar level transmitters based on specific application requirements.

Key Considerations for Selection

1. Process Conditions

Temperature and Pressure

- Temperature: Ensure the transmitter's operating temperature range matches the process conditions. E+H transmitters can operate from -200°C to +450°C.

- Pressure: Choose a transmitter rated for the process pressure, with options up to 400 bar.

Dielectric Constant

- Although guided radar is less affected by dielectric constant compared to other radar technologies, it is still important to consider the dielectric properties of the process medium. For low dielectric constant materials (e.g., hydrocarbons), a transmitter with optimized signal processing may be required.

Viscosity and Density

- High viscosity liquids may require a transmitter with a robust waveguide and advanced signal processing to ensure reliable measurement.

2. Process Medium

Type of Material

- Determine if the transmitter will measure liquids, slurries, or solids. Different materials may require different waveguide configurations.

Chemical Compatibility

- Ensure the transmitter's materials (waveguide, process connection, housing) are compatible with the process medium to prevent corrosion.

Presence of Vapors or Fumes

- For applications involving volatile organic compounds (VOCs), select a transmitter with appropriate explosion-proof certifications (e.g., ATEX, IECEx).

3. Measurement Range

Maximum and Minimum Levels

- Ensure the transmitter's measurement range covers the required levels with sufficient safety margins.

Blind Zone

- Consider the blind zone at the bottom of the vessel where the transmitter cannot measure accurately. Ensure it does not interfere with the desired measurement range.

4. Environmental and Safety Requirements

Environmental Conditions

- Select a transmitter with suitable environmental protection ratings (e.g., IP66, IP67) for reliable operation in harsh conditions.

Safety Certifications

- For hazardous areas, choose a transmitter with the appropriate safety certifications (e.g., ATEX, IECEx, FM) to ensure safe operation.

Popular Endress+Hauser Guided Radar Level Transmitters Models

Liquiline M FMR50

- **Features**: Suitable for liquid level measurement in storage tanks and process vessels. Offers high accuracy, multiple output options, and robust construction.

- **Applications**: Oil and gas storage, chemical processing, water and wastewater treatment, food and beverage production.

Liquiline M FMR53

- **Features**: Designed for challenging applications with high viscosity or low dielectric constant liquids. Provides advanced signal processing and flexible installation options.

- **Applications**: Chemical reactors, heavy oil storage, food processing tanks.

Liquiline M FMR56

- **Features**: Ideal for measuring solids and powders. Equipped with a special waveguide design to handle dusty environments and low dielectric materials.

- **Applications**: Silos, hoppers, bulk storage facilities.

Conclusion

Selecting the right Endress+Hauser guided radar level transmitters involves careful consideration of process conditions, medium properties, vessel characteristics, measurement requirements, and environmental factors. By understanding these key aspects and matching them with the appropriate transmitter features, users can ensure reliable and accurate level measurement in their industrial processes.