Product Description
Comprehensive Product Introduction: Rosemount™ 3408 Non-Contacting Radar Level Transmitter
1. Technology Overview
The Rosemount 3408 is an advanced 80 GHz fast-sweep Frequency-Modulated Continuous Wave (FMCW) radar transmitter designed for continuous level measurement in diverse industrial applications. Its high-frequency radar enables precise tracking of liquids and solids, even in challenging conditions such as low-dielectric media, turbulent surfaces, or environments with foam, vapor, or dust. The FMCW technology uses a continuous signal sweep to detect level changes with millimeter accuracy, minimizing signal noise and false echoes.
Key innovations include:
Smart Echo Supervision™: Dynamically identifies true surface echoes while filtering out interference from internal obstructions (e.g., agitators, ladders).
Bluetooth® Wireless Connectivity: Allows configuration, diagnostics, and verification via mobile devices without physical access to the transmitter.
Detailed Photos
2. Key Features and Benefits
2.1 Application Flexibility
Antenna Options:
Lens Antenna: Ideal for small nozzles (≥ DN50) and corrosive media.
Process Seal Antenna: Features PTFE-wetted parts for chemical resistance.
ATAP (Atmospheric Temperature/Pressure) Antenna: For open-air installations requiring environmental compensation.
Solids Measurement: Specialized algorithms handle uneven surfaces (e.g., fly ash silos), low-dielectric materials, and multiple echoes.
2.2 Ease of Use
Intuitive Interface: Graphical LCD with pictograms simplifies setup and troubleshooting.
Smart Meter Verification™: Enables remote proof-testing and automated verification reports, reducing manual interventions.
Quick Calibration: Self-configuration via "Guided Setup" wizard adapts to process conditions automatically.
2.3 Reliability and Safety
Maintenance-Free Design: No moving parts and robust construction (IP66/IP67 rated) ensure longevity in harsh environments.
Hazardous Area Certifications: ATEX/IECEx (Ex db ec), FM/FMc, SIL 2 (IEC 61508), and SIL 3-capable.
Safety Protocols:
Explosion-proof housing requires cover engagement in hazardous zones.
Alerts for seal damage to prevent process leaks.
Product Parameters
| Parameter |
Specification |
| Frequency |
80 GHz FMCW |
| Measurement Range |
Up to 120 m (liquids), 70 m (solids) |
| Accuracy |
±2 mm (liquids), ±10 mm (solids) |
| Process Temperature |
-196°C to +200°C |
| Pressure Rating |
Vacuum to 40 bar |
| Output Signals |
4-20 mA HART® 7, FOUNDATION Fieldbus, PROFIBUS PA |
| Ingress Protection |
IP66/IP67 (NEMA 4X) |
4. Industrial Applications
Chemical Processing: Corrosion-resistant PTFE antennas for acid storage tanks.
Waste Management: Fly ash silo level monitoring with purging rings to prevent antenna clogging (e.g., Prague incinerator plant).
Power Generation: Water/condensate measurement in boilers.
Food & Beverage: Hygienic lens antennas for edible oil storage.
5. Installation and Maintenance
Mounting:
Avoidance zones near nozzles/walls to eliminate false echoes.
Bracket kits for vertical/horizontal alignment on tanks.
Bluetooth® Security: Unique UID/key pairing prevents unauthorized access (Figure 1-2)
Maintenance Tools:
Emerson AMS Device Manager for predictive diagnostics.
Remote firmware updates via HART®.
6. Case Study: Waste Incineration Plant
Challenge: Unreliable capacitive sensors in a Prague fly ash silo necessitated weekly manual checks, exposing workers to hazardous dust and causing operational delays. Solution: Rosemount 3408 with purging ring and solids-specific algorithms. Results:
100% measurement reliability, eliminating manual interventions.
60% reduction in emergency maintenance costs.
SIL 2 compliance enhanced plant safety.
7. Certifications and Compliance
Functional Safety: SIL 2 (IEC 61508).
Industry Standards: NAMUR NE 107, IECEx/ATEX, cFMus.
Environmental: Complies with WEEE directives for recycling
8. Competitive Advantages
Total Cost of Ownership: Reduced calibration/maintenance costs vs. guided wave radar.
Future-Proofing: Modular design supports firmware updates and protocol upgrades.
Sustainability: Energy-efficient operation (12-36 V DC) and recyclable materials.
Company Profile
KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters,temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
Packaging & Shipping
The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.
FAQ
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
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