The Rosemount 1208 is a compact, non-contacting radar transmitter designed for continuous level measurement and open-channel flow calculations. It measures distance to the product surface without contacting the medium, helping reduce maintenance requirements. With a corrosion-resistant PVDF housing and multiple communication options, it is suitable for water management, utilities and basic industrial applications.
Key Features
- 80 GHz FMCW radar technology for non-contacting measurement
- Continuous level measurement and open-channel flow calculations
- Smart Echo Supervision™ to distinguish product echoes from obstructions
- Compact, corrosion-resistant PVDF housing
- Encapsulated design suitable for extended submersion
- Optional Bluetooth® wireless configuration
- Available outputs include 4–20 mA HART®, 4–20 mA, IO-Link and switching output, depending on model
- Food-grade and drinking-water-approved materials
- M12 electrical connector for simplified installation
- Mounting accessories for new and existing systems
Suitable Applications
- Water and wastewater treatment
- Open-channel flow measurement
- Water storage tanks and reservoirs
- Pumping stations and drainage systems
- Chemical storage tanks
- Utility systems
- Sludge and wastewater level monitoring
- Outdoor and flood-prone installations
- Selected small-tank solids applications
Technical Highlights & Selection Considerations
- Measurement application: Confirm whether you need level measurement, open-channel flow calculation or both.
- Measuring range: The maximum measuring range is up to 15 m, depending on the medium and installation conditions.
- Accuracy: Reference accuracy is up to ±2 mm under specified conditions.
- Process connection: Standard options include 1½-inch G and NPT threads; compatible mounting accessories are available.
- Output type: Select the appropriate 4–20 mA HART®, 4–20 mA, IO-Link or switching-output version.
- Bluetooth® connectivity: Confirm whether local wireless configuration is required for the selected model.
- Housing material: PVDF offers corrosion resistance for suitable water and chemical applications.
- Installation conditions: Consider mounting position, obstructions, turbulence and the required submersion conditions.
- Approvals: Verify drinking-water, food-grade and hazardous-area requirements for the exact model.
Frequently Asked Questions
Q1: What is the Rosemount 1208 used for?
It provides continuous level measurement and supports open-channel flow calculations in water, wastewater, utility and basic chemical applications.
Q2: How does the Rosemount 1208 measure level?
It uses non-contacting 80 GHz FMCW radar to measure the distance to the product surface without direct contact with the medium.
Q3: Can the Rosemount 1208 measure open-channel flow?
Yes. Its built-in software supports flow calculations for compatible flumes and open channels.
Q4: Is the Rosemount 1208 waterproof or submersible?
Emerson describes its encapsulated design as fully submersible over extended periods. Confirm the specified installation and environmental limits for the selected model.
Q5: Which communication options are available?
Depending on the model, options include 4–20 mA HART®, 4–20 mA, IO-Link, switching output and optional Bluetooth® connectivity.
Q6: What information should I provide when ordering?
Confirm the measurement application, required range, output type, process connection, mounting accessories, installation environment and any required approvals.
