The 21504-000-012-05-02 is a Bently Nevada 7200 series 8mm standard-mount proximity probe featuring a high-performance unarmored FEP cable. Fully compatible with 18745 Proximitor Sensors, this unit works seamlessly with 3300 and 9000 monitoring systems to deliver flexible programming and stable non-contact shaft vibration and displacement measurements.

Features and Benefits

Eddy Current Principle: Operates using noncontacting eddy current technology for accurate distance sensing between probe tip and target surface.

Dual Measurement: Measures both static (position) and dynamic (vibration) distances for comprehensive machine monitoring.

Linear Range: Offers 80 mils (2 mm) of linear measuring range, compatible with API 670 requirements.

System Compatibility: Works seamlessly with 3300 and 9000 Monitoring Systems for easy integration.

Application Versatility: Suitable for turbines, compressors, pumps, motors, and generators in various industries.

Compact Design: Features 0.5-meter integral cable with miniature male coaxial connector for flexible installation.

System Compatibility and Alternative Models

System Compatibility

• Connects to 7200 series extension cables to achieve a complete five-meter or nine-meter overall loop system length.
  Fully compatible with Bently Nevada 18745 Proximitor Sensors.
  Interfaces directly with legacy 3300 and 9000 machinery protection monitoring systems.

Alternative Models & Differences

• 21505-000-012-05-02: Identical dimensional and thread configuration but features an integrated stainless steel armored sleeve over the coaxial lead.
  21500-000-012-05-02: Features a smaller 5mm probe head tip diameter with a 1/4-28 UNF mounting thread instead of the 8mm tip.
  21504-000-024-05-02: Provides an extended 2.4-inch overall case length instead of the short 1.2-inch case body.

Ordering Information Table

FAQ

Q1: What operating principle does this proximity transducer use?

A1: It operates on the eddy current principle, where the probe senses distance by generating a radio frequency signal and detecting eddy current losses.

Q2: What types of measurements can this system perform?

A2: It measures both static (position) and dynamic (vibration) distances between the probe tip and the observed target.

Q3: What is the linear measuring range of this probe?

A3: The system offers 80 mils (2 mm) of linear measuring range and is compatible with API 670 requirements.

Q4: What are the primary applications for this transducer?

A4: It is commonly used for shaft position and vibration measurements on rotating machinery including turbines, compressors, pumps, and generators.

Q5: Which monitoring systems are compatible with this probe?

A5: All 7200 proximity transducer systems are compatible with 3300 and 9000 Monitoring Systems.