Rosemount™ 1208 Level and Flow Transmitter

Description

Rosemount™ 1208 Level and Flow Transmitter

Radar Technology Delivering Reliable Level Measurement

The Rosemount™ 1208 Level and Flow Transmitter represents a new generation of non‑contact radar instrumentation engineered for precise measurement in level monitoring and open channel flow scenarios. Utilizing continuous radar technology and Emerson’s Smart Echo Supervision™, this device actively distinguishes genuine product surface echoes from reflections caused by obstructions or vessel geometry. Housed in a compact PVDF enclosure, the unit resists corrosion from chemically aggressive fluids while maintaining a fully sealed and submersible structure (IP67/IP68, NEMA 4X/6P). With a measurement range of 49.2 ft (15 m) and an accuracy of ± 0.08 in (± 2 mm), the 1208 ensures dependable performance whether tracking slow‑changing liquid levels or rapid surges in fluid height. Engineered for continuous duty in hostile environments, it blends rugged build quality with high‑resolution processing algorithms for unparalleled measurement integrity.

Global Certifications Ensuring Instant Deployment Anywhere

To guarantee compliance and ease of adoption worldwide, the Rosemount 1208 carries an extensive approval portfolio including ATEX, IECEx, FM, NSF 61, WRAS, KTW‑BWGL, FDA, and EU 1935/2004. These certifications enable the unit to be installed in hazardous locations, potable water systems, and food‑grade applications with no additional verification steps. In water treatment plants, NSF and WRAS approvals reassure municipalities of safe drinking water compatibility. In food processing lines, FDA and EU regulations ensure conformance to hygiene standards critical for consumable products. By meeting these diverse regional and industry requirements, the 1208 offers global versatility—allowing equipment standardization across corporate sites regardless of location. This capability saves procurement time, prevents compliance delays, and ensures instant operational readiness in both regulated and industrial environments.

Seamless Communication For Integrated System Control

The Rosemount 1208 is designed for rapid integration into modern control architectures. It supports Bluetooth® wireless technology, enabling technicians to configure and monitor performance directly from tablets or smartphones, significantly reducing commissioning time. In addition, traditional wired communications via two‑wire or three‑wire 4‑20 mA HART®, IO‑Link, and switching outputs provide maximum flexibility for linking to distributed control systems, PLCs, or SCADA platforms. This versatile connectivity ensures compatibility with both legacy frameworks and Industry 4.0 infrastructures. M12 electrical connectors simplify installation and replacement procedures, while accessory process connections (1.5″ G and NPT) allow easy mounting to existing pipework or flanges. These adaptability features make the 1208 not only a high‑accuracy instrument, but also an operationally efficient one, reducing both installation costs and system integration complexities.

Dedicated Applications Across Water And Industry

The Rosemount 1208 excels in a broad range of use‑cases requiring precise non‑contact measurement. In municipal water treatment, it tracks reservoir levels and measures flow through open channels for regulatory reporting. In wastewater processing plants, it monitors clarifier and digester volumes unaffected by foam or surface debris. Basic chemical plants utilize its PVDF housing for corrosion resistance in acid or alkaline storage tanks. In utilities, the device ensures accurate raw water intake monitoring and cooling tower level control. In food and beverage facilities, approvals for drinking‑water and food‑grade materials allow safe measurement of liquid sugar tanks or dairy silo reservoirs. By integrating flow measurement software, the 1208 also calculates volumetric flow in flumes, aiding irrigation systems and hydrological surveys. These versatile applications reflect the adaptability and robustness embedded in its design.

Smart Echo Supervision™ Ensuring True Surface Detection

A unique differentiator of the Rosemount 1208 is Emerson’s proprietary Smart Echo Supervision™ technology. This function continuously monitors all radar echoes returned from the vessel interior, automatically recognizing and excluding signals generated by structural obstructions, ladders, or floating debris. By focusing solely on the actual product surface echo, the transmitter ensures accurate level readings that are unaffected by environmental variables such as media density, viscosity, condensation, temperature, or pressure. Combined with Emerson’s Fast Sweep Technology, surface tracking remains stable even in fast‑filling or turbulent conditions. This automated verification eliminates the need for frequent recalibration, enhances safety by preventing overflow events, and supports consistent process quality in industries where level accuracy is mission‑critical.

Robust PVDF Housing For Harsh Environments

The core structural element—the PVDF (polyvinylidene fluoride) housing—is central to the durability of the Rosemount 1208. PVDF delivers high mechanical strength and exceptional chemical resistance, surviving extended exposure to chlorinated water, acids, solvents, and alkalis without performance degradation. Its corrosion‑proof nature supports deployment in outdoor tank farms and coastal installations where salt spray and UV exposure are common. The encapsulated enclosure shields internal electronics from moisture ingress, allowing full submersion over prolonged periods. Paired with an operating temperature range from ‑40°F to 176°F (‑40°C to 80°C) and a pressure tolerance of ‑14 to 43 psi (‑1 to 3 bar), the 1208 remains stable across extreme climatic and industrial conditions. This rugged profile fosters confidence in long‑term operation even under conditions that challenge lesser instruments.