Product Description
Rosemount 3301 Guided Wave Radar Level Transmitter Product Overview
1. Introduction
The Rosemount 3301 Guided Wave Radar Level Transmitter is a high-precision instrument engineered for continuous level measurement in liquids, semi-liquids, and liquid-liquid interfaces. Part of Emerson's Rosemount 3000 series, this device leverages Time Domain Reflectometry (TDR) technology to deliver reliable performance in diverse industrial applications, including chemical processing, oil and gas, water treatment, and power generation. Its modular design and advanced signal processing make it adaptable to challenging environments
Detailed Photos
2. Key Features & Technology
2.1 Measurement Principle
TDR Technology: The transmitter emits low-power nanosecond microwave pulses along a probe immersed in the process medium. When the pulse encounters a dielectric discontinuity (e.g., liquid surface), part of the energy reflects to the transmitter. The time difference between transmitted and reflected pulses determines the level distance
Dynamic Gain Optimization (DGO): Enhances signal stability in turbulent or foamy conditions by automatically adjusting signal amplification, ensuring accurate readings even with low dielectric constants (ε ≥ 1.4)
2.2 Robust Hardware Design
Probe Options: Flexible probe configurations (rigid, flexible, or coaxial) for compatibility with tanks, reactors, and vessels.
Material Compatibility: Constructed with 316L stainless steel, C-276 alloy, titanium, and PTFE-coated options to resist corrosion, high temperatures (up to 450°C), and aggressive chemicals .
Hazardous Area Certification: ATEX, IECEx, and FM approvals for use in explosive atmospheres (Gas Group IIC, Dust Group IIIC). Separation elements meet EPL Ga/Gb and Da/Db standards .
2.3 Advanced Diagnostics
Signal Quality Metrics: Real-time diagnostics monitor probe integrity, signal strength, and process conditions, enabling predictive maintenance.
HART/Modbus Communication: Supports HART 7.5, FOUNDATION Fieldbus, and Modbus protocols for seamless integration into digital control systems .
3. Product Variants & Configurations
3.1 Model Differentiation
The 3301 series includes multiple variants tailored to specific applications:
| Model |
Application |
Key Attributes |
| 3301HA |
General liquid level |
Standard output, flange/threaded process connection |
| 3301TG |
Gauge pressure measurement |
Compact design, ±0.1% accuracy |
| 3301TA |
Absolute pressure measurement |
Vacuum-to-high-pressure ranges (0-400 bar) |
| 3301CG/CD |
High-purity industries (pharma, food) |
Tri-Clamp® fittings, CIP/SIP compatibility |
| 3301GP |
Heavy-duty industrial environments |
Reinforced probe, explosion-proof housing |
Example Model Code: 3301HA1S1V1AE0101AAI1M1C1
Structure: Material code (e.g., HA = 316L stainless steel), process connection (S1 = ½" NPT), output signal (V1 = 4-20 mA HART) .
3.2 Output Options
Analog: 4-20 mA with HART 7.5 overlay.
Digital: Modbus RS485 or FOUNDATION Fieldbus.
LCD Display: Local configuration with intuitive menu (optional rotate function) .
Product Parameters
| Parameter |
Specification |
| Measurement Range |
Up to 20 m (dependent on probe type) |
| Accuracy |
±3 mm (±0.1% of span) |
| Process Temperature |
-200°C to +450°C (varies by material) |
| Pressure Rating |
Up to 400 bar (5800 psi) |
| Power Supply |
11-42 VDC (HART), 8-30 VDC (Modbus) |
| Ingress Protection |
IP66/IP67/NEMA 4X |
| Certifications |
ATEX, IECEx, FM, SIL 2/3 |
5. Installation & Maintenance
5.1 Mounting Guidelines
Flanged/Tri-Clamp Installation: Align probe vertically, ensuring no obstructions. Use PTFE gaskets for chemical resistance. Torque bolts to 40 Nm .
Split Architecture: Separate electronics housing (up to 15 m from probe) for high-temperature or confined spaces .
5.2 Safety Protocols
Explosive Atmospheres: Verify T-class ratings (T6 for gas, T85°C for dust). Ground using ≥4 mm² cables .
Electrostatic Discharge (ESD): Avoid plastic-coated probes in dust hazardous areas. Use conductive probes (e.g., titanium) .
5.3 Configuration Tools
Rosemount Radar Configurator (RCT): PC-based software for parameter tuning via HART modem.
AMS Suite: Predictive diagnostics and asset management integration .
6. Industry Applications
Oil & Gas: Tank farm inventory management, interface detection in separators.
Chemical Processing: Acid/alkali level control, reactor overfill protection.
Water/Wastewater: Sludge level monitoring, pump control.
Power Generation: Condensate drum level, feedwater measurement.
7. Advantages Over Competitors
Superior Signal Stability: DGO outperforms traditional FMCW radar in foam/condensation
Versatile Material Options: Titanium and C-276 alloys for extreme corrosion resistance .
Reduced Total Cost: Minimal maintenance due to non-contact design and self-diagnostics .
8. Compliance & Documentation
EMC Standards: EN 61326, IEC 61000-6.
Safety Manuals: Refer to Rosemount 3300 Reference Manual (Document ID: 00825-0106-4811) for SIL validation .
Conclusion The Rosemount 3301 combines cutting-edge radar technology with Emerson's legacy of reliability, making it a cornerstone for critical level measurement. Its adaptability to harsh conditions, coupled with advanced diagnostics, ensures operational efficiency and safety across industries. For full specifications, consult the product datasheets or contact Emerson's technical support.
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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