21504-00-96-05-02 | Bently Nevada 8 mm Probe Proximity Vibration

Introduction to the Bently Nevada 21504-00-96-05-02

When machinery vibration threatens uptime, the 21504-00-96-05-02 from Bently Nevada delivers reliable proximity sensing. This model is part of the 7200 Proximity Transducer Systems family. It is designed for continuous vibration monitoring in rotating equipment. The probe diameter is 8 mm. It operates with a power input of -17.5 Vdc to -26 Vdc at 12 mA maximum consumption. Engineers trust this transducer for accurate shaft displacement measurements.

Key Features and Technical Specs

• The 21504-00-96-05-02 has a calibrated range of 80 mils (2.0 mm), starting at approximately 10 mils (0.25 mm) from the probe face.
• Scale factor is 200 mV/mil (7.87 V/mm) with ±4% accuracy when calibrated as a system.
• Linearity remains within 0.8 mils (0.02 mm) of a 200 mV/mil straight line if calibrated as a system.
• Frequency response covers 0 to 10 kHz (0 to 600,000 cpm) with -5% at 10 kHz.
• Operating temperature for the probe and extension cable is -30°F to +350°F (-34°C to +177°C).
• Relative humidity tolerance reaches 95%, noncondensing.
• System weight is 1.3 lbs (0.59 kg).

Real-World Applications for the 21504-00-96-05-02

This proximity probe is ideal for monitoring shaft vibration in turbines, compressors, and pumps. It excels in high-temperature environments up to +350°F. The 8 mm probe withstands direct contact with air, water, lube oil, and various chemicals. Its corrosion resistance ensures reliable operation in harsh industrial settings. The 200 mV/mil output integrates easily with existing monitoring systems.

Installation and Setup Guidance

Mount the probe with the 3/8-24 thread into a standard mounting hole. Ensure the unthreaded length option is 0 mm. The overall case length is 9.6 inches. Use the miniature male coaxial connector for signal output. Calibrate the system for optimal linearity and scale factor accuracy. Follow Bently Nevada’s manual for gap voltage settings.

Maintenance and Reliability Tips

Inspect the probe and cable periodically for physical damage. Keep the probe face clean from debris. The rugged design handles temperatures from -30°F to +350°F. Regular verification of the scale factor ensures measurement accuracy. This transducer reduces downtime by providing early vibration warnings.

Frequently Asked Questions about the 21504-00-96-05-02

Q: What is the calibrated range of the 21504-00-96-05-02?

A: The calibrated range is 80 mils (2.0 mm), beginning at approximately 10 mils (0.25 mm) from the probe face.

Q: What is the scale factor and accuracy?

A: The scale factor is 200 mV/mil (7.87 V/mm) with ±4% accuracy when calibrated as a system.

Q: What is the operating temperature for the probe?

A: The probe and extension cable operate from -30°F to +350°F (-34°C to +177°C).

Q: Does the probe resist chemical exposure?

A: Yes, the 8 mm probe is unaffected by air, water, lube oil, ammonium hydroxide, sulfuric acid (10%), MEK, or DMF.

Q: What is the frequency response of this transducer?

A: The frequency response is 0 to 10 kHz (0 to 600,000 cpm) with -5% at 10 kHz.

Product Support and Availability

The 21504-00-96-05-02 is in stock and ready to ship from Petro Auto Tech. It comes as new and original in factory packing with a 12-month warranty. Contact Petro Auto Tech for lifecycle status and ordering details.