Rosemount 3408 Level Transmitter Non-Contacting Radar Easy-to-use

The Rosemount 3408 Level Transmitter is an 80 GHz FMCW radar-based, non-contacting level sensor for liquids and solids, designed for reliable, maintenance-free measurement even in harsh or remote industrial environments. The 3408 supports wireless communication and offers flexible installation without the need for wiring or power cabling. It is ideal for use in water and wastewater treatment, chemical storage, oil and gas, utility tanks, and industrial storage vessels.

With its advanced radar technology and optional WirelessHART connectivity, the 3408 provides continuous, accurate level data while minimizing downtime and maintenance costs. It offers robust performance in challenging conditions including vapors, dust, turbulence, sludge, and corrosive media, making it a versatile choice for a wide range of process applications.

• Non-contact 80 GHz FMCW radar technology ensures accurate measurement without contact with the medium
• Optional WirelessHART and Bluetooth® connectivity for easy wireless integration and configuration
• Smart Echo Supervision™ algorithms distinguish true level echoes from obstructions or vessel internals for reliable measurement
• Smart Diagnostics Suite with Smart Meter Verification enables remote health checks, in-situ proof testing, and early alerting for preventive maintenance
• Wide measurement range up to 30 meters, covering small tanks to large storage vessels
• High measurement accuracy (standard ±2 mm, ultra ±1 mm) for precise level monitoring
• PTFE wetted parts and options for lens or process-seal antenna allow use in corrosive or harsh media
• SIL 2 certified (IEC 61508) and suitable for overfill prevention and safety-critical applications
• Compact, maintenance-free design with no moving parts reduces lifecycle cost and improves reliability

• Tank level measurement and inventory monitoring for storage vessels containing water, chemicals, oils, fuels, slurries, or other liquids
• Water and wastewater treatment: sumps, clarifiers, reservoirs, remote lift stations, sludge tanks
• Chemical and petrochemical storage: hazardous, corrosive, or vapour-heavy media thanks to non-contact radar and PTFE wetted parts
• Oil and gas industry: tank farms, separators, storage vessels where wireless installation and overfill prevention are critical
• Utility and infrastructure: remote tanks, reservoirs, buffer tanks, backup measurement points
• Industrial process control: continuous level monitoring, overflow prevention, inventory management, process optimization
• Retrofit and remote installations: sites without power or wiring, isolated tanks or vessels in hard-to-access areas

Is the Rosemount 3408 suitable for corrosive or aggressive media

Yes. With PTFE-wetted parts and non-contact radar measurement, the 3408 resists corrosion and buildup even in harsh media.

Can the 3408 be installed without wiring or conduit

Yes. With optional WirelessHART or Bluetooth communication and internal battery or suitable power supply, it supports wireless or minimal wiring installations.

Does it support hazardous locations and safety-critical applications

Yes. The 3408 is certified IEC 61508 (SIL 2, SIL 3 capable) and approved under ATEX/UKEX/IECEx for hazardous area use.

What is the range and accuracy of measurements

The 3408 covers up to 30 meters (98 ft) range and achieves standard accuracy ±2 mm, with an ultra-accuracy option at ±1 mm.

Can maintenance and verification be done without interrupting the process

Yes. Smart Meter Verification and remote diagnostics allow in-situ proof-testing, health checks, and troubleshooting without process interruption.

Is it easy to configure and integrate into existing control systems

Yes. It supports HART® protocol, WirelessHART®, and optional Bluetooth configuration. It is compatible with standard host systems and control networks using HART or FDI standards.

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