1208A Water Flow Transmitter – Non‑Contact Radar Solution for Open Channel and Level‑to‑Flow Measurement

1208A Water Flow Transmitter – Non‑Contact Radar Solution for Open Channel and Level‑to‑Flow Measurement

The Rosemount 1208A Water Flow Transmitter is a non‑contact radar solution designed for accurate and reliable measurement in open channel applications. Engineered by Emerson, it combines advanced radar technology with robust construction to deliver precise level‑to‑flow conversion without being affected by temperature, pressure, or fluid properties. Compact and easy to install, the 1208A ensures long‑term stability and minimal maintenance, making it ideal for water treatment plants, irrigation systems, and industrial process monitoring.

Rosemount 1208A Water Flow Transmitter – Key Features

1. Non‑Contact Radar Technology provides accurate flow and level measurement without direct contact with the medium, ensuring long‑term reliability and minimal maintenance.
2. Level‑to‑Flow Conversion Built‑in algorithms convert level readings into flow values, making it ideal for open channel water applications.
3. High Accuracy & Stability Typical accuracy of ±5 mm, unaffected by temperature, pressure, or fluid properties.
4. Compact & Robust Design Lightweight PVDF housing with IP66/68 protection, resistant to harsh environments and suitable for outdoor installations.
5. Flexible Communication Supports 4–20 mA, IO‑Link, and switch outputs, with Bluetooth configuration for easy commissioning and diagnostics.
6. Certified for Water Applications Drinking water and FDA approvals make it safe for municipal water, wastewater, and environmental monitoring.
7. Easy Installation Standard threaded connections (G1½” or NPT 1½”) allow quick integration into existing systems.

Applications of Rosemount 1208A Water Flow Transmitter

• Water & Wastewater Treatment
• Open channel flow measurement in treatment plants
• Influent and effluent monitoring
• Stormwater and sewage flow tracking
• Environmental Monitoring
• River, canal, and irrigation channel flow measurement
• Reservoir and dam inflow/outflow monitoring
• Flood control and hydrology studies
• Municipal & Utility Systems
• Drinking water distribution flow verification
• Leakage detection and network balancing
• Monitoring of pumping stations and retention basins
• Industrial Processes
• Process water flow in the chemical and food industries
• Cooling water circulation monitoring
• Wastewater discharge compliance reporting
• Agriculture & Irrigation
• Irrigation canal flow measurement
• Water allocation and usage optimization
• Remote monitoring of agricultural water resources

Frequently Asked Questions – Rosemount 1208A Water Flow Transmitter

Q1. What is the Rosemount 1208A Water Flow Transmitter used for?

The 1208A is designed for non‑contact radar measurement of water level and flow, especially in open channels, rivers, canals, and wastewater treatment plants. It converts level readings into flow values for accurate monitoring.

Q2. How does it measure flow without touching the water?

It uses 80 GHz radar technology to detect the water surface. The device then applies built‑in level‑to‑flow conversion algorithms to calculate flow rates, eliminating the need for contact with the liquid.

Q3. What is the typical accuracy of the 1208A?

It provides a typical accuracy of ±5 mm, unaffected by temperature, pressure, or water quality.

Q4. What communication outputs are available?

The transmitter supports 4–20 mA, IO‑Link, and switch outputs, with Bluetooth configuration for easy setup and diagnostics.

Q5. Is it suitable for drinking water applications?

Yes. The 1208A is available with drinking water and FDA approvals, making it safe for municipal water and environmental monitoring.

Q6. How easy is it to install?

It features compact housing and standard threaded connections (G1½” or NPT 1½”), allowing quick installation in existing systems.

Q7. What industries commonly use the 1208A?

1. Water & wastewater treatment
2. Environmental monitoring (rivers, canals, reservoirs)
3. Municipal utilities and pumping stations
4. Industrial process water and discharge monitoring
5. Agricultural irrigation systems

Q8. What are the main advantages compared to traditional flow meters?

1. Non‑contact (no fouling, no wear)
2. Low maintenance
3. High reliability in harsh environments
4. Compact and cost‑effective compared to complex flow metering systems