Factory Original Rosemounte 3301 Guided Wave Radar Level Gauge

• Customization: Available
• Type: Lightning Protection Type
• Structure Design: Flange Type
• Model NO.: Rosemounte 3301
• Pressure Range: High Pressure
• Display Type: LCD
• Accuracy Grade: 1.0G
• IP Rating: IP65
• Certification: CE
• Customized: Customized
• Product Name: Rosemount 3301 Guided Wave Radar Level Transmitter
• Measurement Type: Guided Wave Radar (Gwr) for Liquid, Solid, and Int
• Warranty: One Year Warranty
• Measurement Range: up to 20 M (66 FT) for Liquids
• Output Signal: 4–20 Ma
• Power Supply: 10.5–42 V DC
• Process Connections: Flanged, Threaded, or Clamp-Style
• Materials: 316L Stainless Steel, Hastelloy C-22, Alloy C-276
• Output Signals: 4–20 Ma (Isolated), Hart® 7, Foundation
• Shock Resistance: 50g (11 Ms Half-Sine)
• Operating Temperature: -40°c to +85°c (-40°f to +185°f)
• Response Time: <100 Ms (Adjustable Damping Available)
• EMC Immunity: 30 V/M (80 MHz–1 GHz)
• Sensor Tube Design: Straight or Curved Coriolis Tubes (No Moving Parts
• Vibration Resistance: 2g RMS (10–2000 Hz)
• Transport Package: Support Air/Land/Sea Transportation
• Specification: 40cm*30cm*30cm*
• Trademark: Emerson
• Origin: China
• HS Code: 9026201090
• Production Capacity: 1000 Piece/Year
• Package Size: 35.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Emerson Rosemount 3301 Guided Wave Radar Level Interface Transmitter

The Emerson Rosemount 3301 Guided Wave Radar (GWR) Level Interface Transmitter is a high-precision, multivariable solution designed to deliver accurate and reliable measurement of liquid levels, interfaces, and temperatures in demanding industrial environments. Part of Emerson's advanced Rosemount portfolio, the 3301 leverages Time Domain Reflectometry (TDR) technology combined with Frequency-Modulated Continuous-Wave (FMCW) radar to provide stable, real-time data for applications ranging from oil and gas production to food processing. Its ability to measure two-phase interfaces—such as oil/water or hydrocarbon/water boundaries—makes it indispensable in custody transfer, separation, and blending operations where process efficiency and regulatory compliance are critical.

Core Technology and Operating Principle
The Rosemount 3301 operates on the guided wave radar principle, where low-energy microwave pulses travel along a probe (rod, coaxial, or cable) immersed in the process medium. When these pulses encounter a change in dielectric constant—such as the interface between two liquids—they reflect back to the transmitter. The device calculates level or interface positions by measuring the time delay between signal transmission and reception. Unlike traditional ultrasonic or capacitive sensors, the 3301 uses contact-based radar, ensuring accuracy.

A key innovation is its dual-frequency FMCW radar technology, which enhances resolution and signal stability. This allows the transmitter to distinguish between multiple layers in complex mixtures, such as crude oil emulsions or layered chemical solvents. Advanced signal processing algorithms filter out false echoes caused by tank obstructions, agitators, or vessel geometry, ensuring consistent measurements in challenging environments.

Technical Performance and Features
The Rosemount 3301 delivers exceptional accuracy and versatility:

Measurement Accuracy: ±1 mm (±0.04 in) for liquids and ±3 mm (±0.12 in) for interfaces, ensuring compliance with custody transfer standards.
Range Capability: Supports measurement distances up to 20 meters (66 feet), accommodating large tanks, separators, and storage vessels.
Multivariable Output.

Its modular design allows easy replacement of probes and electronics without tank entry, minimizing downtime. The transmitter meets IP66/NEMA 4X standards for protection against dust, water, and extreme temperatures (-40°F to 185°F / -40°C to 85°C), with optional ATEX, IECEx, and FM certifications for hazardous locations.
Advanced Diagnostic and Asset Management Features
The 3301 incorporates predictive diagnostics to enhance operational reliability and reduce unplanned downtime. Key capabilities include:

Signal Health Monitoring: Detects probe coating buildup, fluid property changes, or mechanical stress, alerting operators to potential failures.
Interface Detection Algorithms: Tracks phase separation quality in real time, ensuring optimal separation efficiency in oil/water systems.
Self-Validation: Periodic checks verify measurement integrity without manual intervention, critical for pharmaceutical and food-grade applications.
Vibration Compensation: Advanced algorithms isolate process noise from genuine signals, maintaining accuracy in high-vibration settings like compressor stations.
These diagnostics are accessible via HART, Fieldbus, or Emerson's AMS Device Manager, enabling proactive maintenance planning and compliance with functional safety standards like IEC 61508 (SIL 2/3).

Ease of Use and Integration
Installation and commissioning are streamlined through intuitive interfaces:

Local Display: A backlit LCD with push-button controls allows on-site setup and troubleshooting without tank entry.
Remote Configuration: HART or digital protocols enable adjustments via handheld communicators, mobile apps (e.g., Emerson Mobile Remote View), or control system interfaces.
Digital Twin Compatibility: Integrates with Emerson's PlantWeb® ecosystem for real-time analytics, predictive maintenance, and performance optimization.
The 3301's universal probe design supports multiple configurations (rod, coaxial, or flexible cable) for adaptability to diverse tank geometries and media types. Its compatibility with legacy 4–20 mA systems simplifies retrofitting into older installations while supporting modern digital upgrades.

Specification

Rosemount 3301 Guided Wave Radar Level Interface Transmitter
Parameter	Specification
Measurement Type	Guided Wave Radar (GWR)for liquid, solid, and interface level measurement
Accuracy	±1 mm (±0.04 in) or ±0.1% of span (whichever is greater)
Output Signal	4–20 mA + HART® 7 Digital Communication
Power Supply	10.5–42 V DC (loop-powered)
Operating Temperature	-40°C to +85°C (-40°F to +185°F)
Response Time	<100 ms (adjustable damping available)
Measurement Range	Up to 20 m (66 ft) for liquids; up to 6 m (20 ft) for solids
Probe Materials	316L Stainless Steel, Hastelloy C-276, Monel 400, or Tantalum
Enclosure Rating	Aluminum or 316 Stainless Steel; IP66 (NEMA 4X), IP67 (NEMA 6P)
Process Connection	Flanged (ANSI/DIN/JIS), threaded (NPT/BSP), or hygienic clamp-style
Probe Types	Single, twin, or coaxial probes
Ambient Temperature	-40°C to +85°C (-40°F to +185°F)
Vibration Resistance	2g RMS (10–2000 Hz)
Shock Resistance	50g (11 ms half-sine)
EMC Immunity	30 V/m (80 MHz–1 GHz)

Company Profile

Company Profile

KeRul (WeiFang) Automation Equipment Co., Ltd. is speciallzed in industrialautomation instrument development, production and sales, technical servicesand supporting equipment supply of specialized companies, The mainproducts are fow meters, level meters, temperature meters, pressuremeters, electrical meters, thermal meters, programmable controller(PLC), Dcs distributed control system, eight series of more than 1,000specifcations. its products and technologies are widely used in electrlcpower, metallurgy, petrochemical, environ. mental protection, plastics,food,l printing, tobacco, textile, dyeing and other fields.

Our Service

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To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
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Customer Feedback:  Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors

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