Proximity Probes, Sensors & Transducer Systems

Proximity Probes, Sensors & Transducer Systems

Introduction to Proximity Probes, Sensors & Transducer Systems

Proximity probes and proximity sensors can be very good options in the monitoring of mission-critical machinery to safeguard your equipment. This family of systems offers very high-speed, cost-contained solutions with a long lifetime for your automation, robotic, and precision measurement objectives. Herein, the description covers a variety of proximity sensors available for differing industrial applications.


Types of Proximity Sensors

Inductive Proximity Sensors
These sensors detect metallic objects using magnetic fields. They are reliable, durable, and widely used for position sensing.

Magnetic Proximity Sensors
Perfect for environments where non-contact sensing is essential, these sensors utilize magnets to detect the presence of objects.

Ultrasonic Proximity Sensors
Using sound waves, ultrasonic sensors are ideal for detecting objects in environments where visibility is limited.

Photoelectric Proximity Sensors
These sensors rely on light to detect objects, making them suitable for applications where precise detection is necessary.

Capacitive Proximity Sensors
Used for detecting both metallic and non-metallic objects, capacitive sensors are versatile and reliable in various industrial settings.


Bently Nevada Proximity Probes & Transducer Systems

5mm, 8mm, 11mm Proximity Sensors

3300 5mm Proximity Probe, Sensor, and Transducer System

The 3300 5mm system offers a smaller probe diameter, making it ideal for tight spaces. This system provides accurate static and dynamic measurements, including vibration and position. It is commonly used in fluid-film bearing machines, Keyphasor measurement, and speed measurement applications.

Key Features:

  • Measures vibration and displacement
  • Compatible with XL 8mm extension cable and 5mm proximity sensor
  • Ideal for fluid-film bearing machines

3300 XL 8mm Proximity Probe, Sensor, and Transducer System

The 3300 XL 8mm system is designed for high performance. It fully complies with API 670 standards and provides excellent temperature stability and accuracy. This system is interchangeable, reducing the need for calibration.

Key Features:

  • 5-meter extension cable
  • Linear sensing range and accuracy
  • API 670 compliant

3300 XL 11mm Proximity Probe, Sensor, and Transducer System

The 3300 XL 11mm system is ideal for applications requiring a longer linear sensing range. With a 4mm sensing range, it provides accurate vibration and displacement measurements. It is suitable for hazardous areas and is approved for both European and North American installations.

Key Features:

  • Longer linear sensing range
  • European and North American approvals
  • Ideal for hazardous areas

Larger Proximity Sensors: 16mm, 25mm, and 50mm Systems

3300 XL 16mm High-Temperature Turbine Sensor System

The 3300 XL High-Temperature Proximity System is designed to withstand extreme temperatures up to +350°C. It is suitable for use in gas turbines, steam turbines, and other types of rotating machinery. This system measures vibration, thrust position, and differential expansion.

Key Features:

  • Rated for +350°C
  • Ideal for turbines and rotating machinery
  • Measures vibration, thrust position, and more

3300 XL 25mm Turbine Sensor and Transducer System

This system offers a sensing range of 12.7mm (500 mil). It is crucial for steam turbine systems and measures differential expansion caused by temperature differences between turbine rotors and stators.

Key Features:

  • Extended measurement range
  • Ideal for steam turbine differential expansion
  • RFI/EMI immunity

3300 XL 50mm Turbine Sensor and Transducer System

The 3300 XL 50mm system provides the longest linear measurement of all Bently Nevada's proximity sensors. It is perfect for large steam turbines and plays a vital role in Turbine Supervisory Instrumentation (TSI) systems.

Key Features:

  • Longest linear measurement range
  • Ideal for large steam turbines
  • RFI/EMI immunity

Specialty Proximity Sensor Systems

3300 XL Ceramic Probe

Designed for harsh environments, the 3300 XL Ceramic Capped Probe features an alumina ceramic cap and stainless steel casing. It is ideal for use in corrosive or high-pressure applications like ammonia systems.

Key Features:

  • Rated to 34 Bar (500 psi)
  • Ideal for corrosive and high-pressure environments
  • Compatible with 8mm 3300 XL Proximitor Sensor

3300 XL NSv Compressor Sensors

The 3300 XL NSv system is perfect for small targets and tight spaces, making it ideal for centrifugal air compressors, refrigeration compressors, and process gas compressors. It is used for measuring radial vibration and axial position.

Key Features:

  • Ideal for small targets and tight installations
  • Suitable for compressors and small shafts
  • Compatible with Keyphasor applications

3300 XL Underwater Probe

Specially designed for underwater applications, this probe is perfect for hydroelectric plants or sewage treatment facilities. Rated to 500 psi (34 Bar), it is highly durable in submerged environments.

Key Features:

  • Rated to 500 psi
  • Designed for underwater applications
  • Seals against gases and liquids

Proximity Probe Housing Assemblies

PROXPAC XL Proximity Transducer Assembly

This integrated system combines a proximitor sensor with a probe housing to create a compact and self-contained unit. The PROXPAC XL assembly is IP66 rated and suitable for severe environments.

Key Features:

  • Integrated sensor and probe housing
  • Thermoplastic housing for electrostatic charge dissipation
  • IP66 rated

Why Choose Bently Nevada Proximity Sensors?

Bently Nevada has over 60 years of experience in developing high-quality proximity sensors. The company revolutionized the industry with the eddy current proximity sensor and has since expanded its offerings to include transducers for acceleration, velocity, and pressure detection.

Key Benefits of Bently Nevada Sensors:

  • Cost Reduction: Lower maintenance and repair costs with continuous monitoring.
  • Increased Uptime: Enhanced production efficiency due to proactive maintenance.
  • Minimized Downtime: Convert unplanned outages into planned maintenance.

Recommended Models

Model Number Description Link
330850-50-CN High-performance proximity sensor 330850-50-CN Proximity Sensor
330103-00-06-10-02-00 Reliable proximity probes for vibration measurement 330103-00-06-10-02-00 Proximity Probes
330980-70-05 3300 XL NSv proximity sensor with quick response 330980-70-05 3300 XL NSV Proximity Sensor
330180-51-00 3300XL Proximitor sensor for precise monitoring 330180-51-00 3300XL Proximitor Sensor
330130-075-00-00 Extension cable for 3300 XL sensors 330130-075-00-00 Extension Cable
330130-030-00-05 Additional extension cable for 3300 XL systems 330130-030-00-05 3300 XL Extension Cable
330171-00-20-10-02-00 Durable proximity probes for industrial applications 330171-00-20-10-02-00 Proximity Probes

These proximity sensors provide exceptional reliability, reduced downtime, and increased productivity in even the most demanding environments.

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