Introduction
When machinery vibration threatens uptime in critical rotating equipment, the Bently Nevada 146054-08-90-00-00 provides reliable, high-precision displacement measurement. This 3300 Ceramic Capped Proximity Probe is designed for permanent installation in harsh industrial environments, offering a robust solution for monitoring shaft vibration and position.
Technical Specifications Breakdown
The 146054-08-90-00-00 operates as part of a 5 mm system, delivering a linear range of 1.52 mm (60 mils) starting at approximately 0.25 mm (10 mils) from the target. Its incremental scale factor (ISF) is 7.87 V/mm (200 mV/mil) ±6.5% over the full linear range, ensuring accurate and repeatable measurements. The probe features a 3/8-24 UNF thread with a maximum thread engagement of 0.563 inches. It uses a 75 Ω coaxial, FEP-insulated cable with a total length of 9.0 meters (29.5 feet). The nominal DC resistance from center conductor to outer conductor is 9.87 ± 0.90 ohms.
Industry Applications
This probe excels in monitoring steam turbines, compressors, pumps, and other rotating machinery where shaft vibration and position must be tracked continuously. Its ceramic tip withstands high temperatures up to +177°C (+351°F) and pressures up to 34 Bar (500 psi) nitrogen, making it suitable for demanding applications in power generation, oil and gas, and petrochemical plants.
Installation & Setup Guidance
Mount the probe using the 3/8-24 UNF thread into a properly tapped hole. Ensure the probe tip is positioned within the linear range (0.25 to 1.78 mm from the target) for optimal performance. Use the supplied 9.0-meter cable without a connector (Option: 0 0=) and connect to a compatible Bently Nevada Proximitor sensor. Calibrate the system using an AISI 4140 steel target for best accuracy.
Maintenance & Reliability
The alumina ceramic tip and AISI 304 stainless steel case provide excellent corrosion and wear resistance. Regularly inspect the cable for damage and verify the probe's resistance (9.87 ± 0.90 ohms) to ensure integrity. The probe operates reliably from -51°C to +177°C, reducing the need for frequent replacements and lowering total cost of ownership.
Selection Guide & Purchasing Advice
When ordering, verify the overall case length (0.8 inches, code -08) and total length (9.0 meters, code -90). This configuration does not include a connector or agency approval. SpareTechPLC stocks the Bently Nevada 146054-08-90-00-00 as new and original in factory packing with a 12-month warranty. Contact us to confirm availability and suitability for your application.
Frequently Asked Questions
Q: What is the linear range of the 146054-08-90-00-00?
A: The linear range is 1.52 mm (60 mils), starting at approximately 0.25 mm (10 mils) from the target.
Q: What cable length does this probe use?
A: The probe includes a 9.0-meter (29.5 feet) 75 Ω coaxial FEP-insulated cable.
Q: Can this probe be used in high-temperature environments?
A: Yes, it operates from -51°C to +177°C (-60°F to +351°F) and is rated for 34 Bar (500 psi) nitrogen pressure.
Q: What thread size does the probe have?
A: The probe case thread is 3/8-24 UNF with a maximum thread engagement of 0.563 inches.
Q: Is the probe compatible with other Bently Nevada systems?
A: Yes, it is designed for use with 3300 XL Proximitor sensors and extension cables as part of a 5 mm system.
