Product Overview
When unplanned machine downtime drives up maintenance costs, the Bently Nevada 146054-08-20-01-05 3300 Ceramic Capped Proximity Probe provides precise shaft vibration and position measurements. This probe is part of the 3300 series, designed for continuous monitoring in critical rotating machinery. Its ceramic tip withstands harsh environments, reducing replacement frequency and long-term expenses.
Technical Specifications Breakdown
The 146054-08-20-01-05 offers key specs that directly impact measurement accuracy and system cost-efficiency:
- Linear Range: 1.52 mm (60 mils), starting at 0.25 mm (10 mils) from target. This wide range covers most shaft vibration amplitudes without needing multiple probes, simplifying installation and lowering inventory costs.
- Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±6.5% including interchangeability error over 0°C to +45°C. This tight tolerance ensures consistent readings across different probes, reducing calibration time and spare part costs.
- Probe Temperature Range: -51°C to +177°C (-60°F to +351°F). The wide operating range allows use in both cold and hot environments, avoiding costly special-order probes for extreme conditions.
- Probe Pressure Rating: 34 Bar (500 psi) nitrogen. This robust sealing prevents fluid ingress in high-pressure applications like steam turbines, minimizing failure-related downtime.
Industry Applications
- Steam Turbine Monitoring: The 146054-08-20-01-05 measures shaft vibration and thrust position in steam turbines. Its 34 Bar pressure rating and ceramic tip withstand high-temperature, high-pressure environments, reducing unplanned outages and maintenance costs.
- Compressor Protection: In centrifugal compressors, the probe’s 1.52 mm linear range captures full vibration signatures. The miniature coaxial ClickLoc connector simplifies cable routing, lowering installation labor expenses.
- Pump Condition Monitoring: For large industrial pumps, the 0.8 in case length fits tight bearing housings. The CSA/ATEX/IECEx approvals allow use in hazardous areas without additional enclosures, saving on certification costs.
Installation & Setup Guidance
Mount the 146054-08-20-01-05 using the 3/8-24 UNF thread, ensuring thread engagement does not exceed 0.563 in to avoid mechanical interference. Use the standard 75 Ω coaxial cable with the miniature coaxial ClickLoc connector. Verify the target material is AISI 4140 steel for specified accuracy. For best cost-efficiency, pre-configure the system with the correct cable length (2.0 meters) to avoid field modifications.
Maintenance & Reliability
Inspect the probe cable and connector periodically for wear or damage. The alumina ceramic tip resists abrasion, extending service life. The probe operates from -51°C to +177°C, reducing thermal stress failures. Regular calibration checks against the 7.87 V/mm ISF ensure measurement accuracy, preventing false alarms that cause unnecessary shutdowns.
Selection Guide & Purchasing Advice
Before ordering the 146054-08-20-01-05, verify the overall case length (0.8 in) and total length (2.0 m) match your installation. Confirm the agency approval option (-05) meets your site’s certification requirements (CSA, ATEX, IECEx). SpareTechPLC supplies this probe new and in original factory packing with a 12-month warranty, ensuring reliable performance and cost-effective procurement.
Frequently Asked Questions
Q: What is the linear range of the 146054-08-20-01-05?
A: The linear range is 1.52 mm (60 mils), beginning at approximately 0.25 mm (10 mils) from the target.
Q: What is the incremental scale factor of this probe?
A: The ISF is 7.87 V/mm (200 mV/mil) ±6.5% including interchangeability error over 0°C to +45°C.
Q: What temperature range can the probe withstand?
A: The operating and storage temperature range is -51°C to +177°C (-60°F to +351°F).
Q: What certifications does the 146054-08-20-01-05 carry?
A: It is approved for CSA, ATEX, and IECEx (agency option -05).
Q: What is the pressure rating of the probe?
A: The probe is rated to seal 34 Bar (500 psi) nitrogen.
