21504-24-64-05-02 Bently Nevada Proximity Transducer 8mm Probe

Bently Nevada 21504-24-64-05-02 8mm Proximity Transducer System

Complete Suffix Configuration for Model 21504

• The base model 21504 utilizes a suffix system to define its exact mechanical specifications for proper installation.
• Suffix "24" indicates an unthreaded length of 2.4 inches, providing the correct tip projection from the mounting surface.
• Suffix "64" specifies a case length of 6.4 inches, ensuring the probe body fits your specific mounting requirements.
• Suffix "05" designates a 0.5 meter (20 inch) total cable length for flexible routing to the proximitor.
• Suffix "02" confirms the use of a miniature male coaxial connector for a secure and reliable connection.

Core Technical Specifications and Performance Data

• Measurement Range: This 21504-24-64-05-02 system provides a full-scale range of 80 mils (2.0 mm) for comprehensive vibration analysis.
• Output Sensitivity: It features a precise output scale of 200 mV/mil (7.87 V/mm) with a system accuracy of ±4%.
• Frequency Response: The transducer effectively monitors dynamic motion from 0 to 10 kHz, with only a -5% signal attenuation at the maximum frequency.
• Power Requirements: It operates on a DC power supply from -17.5 to -26 Vdc and draws a maximum current of 12 mA.
• Mechanical Construction: The probe features an 8 mm diameter tip with 3/8-24 threading and can withstand tip shocks up to 1000 g.
• Reliability Metrics: This system boasts a Mean Time Between Failures (MTBF) of 50,000 hours and requires a standard calibration interval of 12 months.
• Operating Temperature: The sensor operates reliably in temperatures ranging from -30°C to +177°C, suitable for extreme environments.

Step-by-Step Installation Procedure

• Begin the installation of your 21504-24-64-05-02 by ensuring all power to the monitoring system is turned off.
• Mount the probe securely onto the designated standoff block or bracket using the 3/8-24 threads.
• Carefully set the initial gap to 0.25 mm (10 mils) as the starting point for the linear range.
• Tighten the mounting nut to the specified torque of 5 Nm to prevent movement during operation.
• Connect the miniature male coaxial connector from the 21504-24-64-05-02 to the matching input on the proximitor.
• Restore power to the system and verify the output voltage corresponds correctly to the established gap.

System Compatibility and Required Components

• This probe is fully compatible with all Bently Nevada 7200 Series proximitor modules for seamless integration.
• It works with standard 8 mm extension cables to connect the probe to remote monitoring electronics.
• The 21504-24-64-05-02 mounts correctly using mating transverse standoff blocks designed for 8 mm sensors.
• It interfaces directly with data loggers and monitoring systems calibrated for a 200 mV/mil input scale.

Download the complete product manual here: 7200 Proximity Transducer Systems

Frequently Asked Questions (FAQ)

• What is the difference between the 21504 and 21504-24-64-05-02? The base model 21504 requires suffix selection. This specific 21504-24-64-05-02 includes predefined unthreaded, case, and cable lengths.
• How do I set the correct initial gap for this probe? You must adjust the probe position against the target until you achieve a static output equivalent to the 0.25 mm starting point of the linear range.
• Can this 8 mm probe withstand high vibration levels? Yes, the tip construction supports up to 1000 g shock, making it robust for most turbomachinery applications.
• What is the recommended calibration frequency for the 21504-24-64-05-02? Bently Nevada recommends a standard calibration interval of 12 months to maintain specified system accuracy.
• Do you have the 21504-24-64-05-02 in stock? Yes, we maintain this configuration as a new and original unit, available for immediate shipment within 5 days.
• What shipping methods do you use? We ship all orders via FedEx, UPS, or DHL to ensure fast and reliable delivery worldwide.

For technical support or sales inquiries, please contact us at sales@nex-auto.com or +86 153 9242 9628.

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