Product Introduction: Bently Nevada 330301-000-011-50-90-01-00 3300 XL High Temperature Probe
When industrial processes demand vibration monitoring in extreme heat, the Bently Nevada 330301-000-011-50-90-01-00 delivers precision and durability. This 3300 XL High Temperature Probe features 3/4-16 UNF threads and is engineered for continuous operation from -34°C to +350°C. With a ceramic tip and AISI 316L stainless steel case, it withstands harsh environments while maintaining accurate displacement measurements. The probe includes a hardline cable length of 5.0 metres and a total length of 9.0 metres with stainless steel armor on the extension cable. This configuration ensures reliable data transmission even in high-temperature applications such as turbines and compressors.
Technical Specifications Breakdown
The Bently Nevada 330301-000-011-50-90-01-00 offers critical performance parameters for precise vibration monitoring. Below are key specifications derived directly from the product data:
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Incremental Scale Factor (ISF): 3.94 V/mm (100 mV/mil) ±9.65% including interchangeability error, measured in increments of 0.5 mm (20 mils) over the 4.0 mm (160 mil) linear range. This ensures consistent output across multiple probes.
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Deviation from Best Fit Straight Line (DSL): Less than ±78 µm (±3.1 mils), providing high linearity for accurate gap measurements.
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System Performance Over Extended Temperatures: Over a probe temperature range of 22°C to +350°C, the ISF remains within ±30% of 3.94 V/mm, and the DSL within ±0.51 mm (±20 mils). This guarantees stable performance in high-heat environments.
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Frequency Response: 0 to 6 kHz: +0, -3 dB typical, with up to 305 metres (1000 feet) of field wiring, supporting a wide range of rotating machinery speeds.
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Probe DC Resistance: 8.11 ohms from center conductor to outer conductor for a 5.0 metre probe length, ensuring low signal loss.
Industry Applications: Real-World Use Cases
The Bently Nevada 330301-000-011-50-90-01-00 excels in high-temperature rotating machinery. Typical applications include:
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Gas Turbines: Monitors shaft vibration in exhaust sections where temperatures exceed 300°C. The ceramic tip and stainless steel armor withstand thermal stress, reducing unplanned shutdowns.
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Steam Turbines: Tracks rotor displacement in high-pressure stages. The probe's rugged construction minimizes maintenance frequency, lowering total cost of ownership.
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Industrial Compressors: Installed on bearing housings in high-heat zones. The 330301-000-011-50-90-01-00 provides reliable data for predictive maintenance programs.
Installation & Setup Guidance
Proper installation of the Bently Nevada 330301-000-011-50-90-01-00 is essential for accurate readings. Follow these guidelines:
- Use a 3/4-16 UNF tap to prepare the mounting hole. Ensure the probe tip extends beyond the mounting surface by the required gap (typically 1.0 mm to 2.0 mm for the linear range).
- Secure the 5.0 metre hardline cable without kinking. Route away from high-frequency noise sources and secure with cable ties at intervals of 300 mm.
- Connect the extension cable with stainless steel armor to the probe connector. Verify that the armor is grounded at the monitor end to prevent electrical interference.
- Calibrate the system using the recommended target size of 30.5 mm (1.2 in) diameter flat target. Adjust the gap to achieve the nominal output voltage.
Maintenance & Reliability
To maximize the lifespan of the Bently Nevada 330301-000-011-50-90-01-00, perform periodic inspections. Check the probe tip for ceramic damage or buildup of contaminants. Clean with a soft, lint-free cloth and isopropyl alcohol if needed. Inspect the cable armor for corrosion or wear, especially in high-humidity environments. The probe's robust design minimizes the need for recalibration; however, verify the scale factor annually using a calibration fixture. This proactive approach reduces downtime and extends service life, delivering a strong return on investment.
Selection Guide & Purchasing Advice
When sourcing the Bently Nevada 330301-000-011-50-90-01-00, confirm that the unthreaded length (0 in), overall case length (1.1 in), and cable lengths match your installation requirements. The stainless steel armor option offers additional protection in abrasive environments. PLC Source PRO stocks this exact model and can provide compatibility verification for your monitoring system. Ensure your monitor accepts the 3.94 V/mm scale factor and 8.11 ohm probe resistance for optimal performance.