Product Overview
The Bently Nevada 330905-05-10-10-12-00 is a precision 3300 NSv Proximity Probe engineered for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module delivers exceptional chemical resistance and side-view characteristics, making it a superior choice for process compressor applications. With a 1.0 meter total length and M10X1 thread configuration, this probe integrates seamlessly into existing Bently Nevada monitoring systems.
Designed as a drop-in replacement for the previous 3300 RAM probe, the 330905-05-10-10-12-00 offers improved chemical resistance and better side-view performance. It is mechanically and electrically interchangeable, simplifying upgrades and minimizing downtime.
Technical Specifications
The 330905-05-10-10-12-00 delivers precise, repeatable measurements across a wide operating envelope. Key parameters include:
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Linear Range: 1.5 mm (60 mils) – from 0.25 to 1.75 mm (10 to 70 mils)
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±12.5%/-20%
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Frequency Response: 0 to 10 kHz (+0, -3 dB) with up to 305 m (1000 ft) of field wiring
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel
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Operating Temperature: -52°C to +177°C
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Storage Temperature: -52°C to +177°C
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Probe DC Resistance: 4.2 ± 0.5 ohms (at 1.0 m length)
These specifications ensure accurate, stable readings even in harsh industrial environments.
Industry Applications
This probe is ideal for monitoring shaft vibration and axial position in compressors, turbines, and other rotating equipment. Its chemical resistance makes it particularly suited for process compressors where exposure to aggressive media is common. The superior side-view characteristics allow reliable gapping at the same distance as the 3000-series 190 probe, simplifying installation and calibration.
In a typical petrochemical plant, the 330905-05-10-10-12-00 provides continuous protection against rotor instability and misalignment, helping to prevent unplanned outages.
Installation & Setup Guidance
Proper installation is critical for optimal performance. Follow these guidelines:
- Mount the probe with finger-tight torque; maximum torque is 0.56 N•m (5 in•lb).
- For M10X1 probe cases, maximum thread engagement is 15 mm; recommended torque is 7.5 N•m (66 in•lb).
- Maintain a minimum bend radius of 25.4 mm (1.0 in) for the probe cable.
- Set the recommended gap to 1.0 mm (40 mils) from the target.
- Use a target diameter of at least 13 mm (0.5 in) for consistent scale factor; smaller targets may require gap adjustment.
For field wiring, use a three-conductor shielded triad cable with a maximum length of 305 meters between the Proximitor Sensor and the monitor.
Maintenance & Reliability
The 330905-05-10-10-12-00 is built for long service life with minimal maintenance. The PPS probe tip and 304 SST case resist corrosion and wear. The Viton O-ring seals differential pressure between the tip and case, but probes are not pressure-tested before shipment. If your application requires pressure seal verification, contact the custom design department.
Regular inspection of the probe cable and connector is recommended to ensure signal integrity. The miniature coaxial ClickLoc connector provides a secure, reliable connection, and the FluidLoc cable offers robust fluid resistance.
Compatibility & Integration
This probe is mechanically and electrically interchangeable with the previous 3300 RAM probe and extension cable. It works seamlessly with Bently Nevada 3300 XL NSv Proximitor Sensors and monitoring systems. The extension cable capacitance is 69.9 pF/m (21.3 pF/ft) typical, ensuring compatibility with standard Bently Nevada signal conditioning.
Buying Guide
When selecting this probe, verify the total length, unthreaded length, and connector type match your application requirements. The 330905-05-10-10-12-00 includes a 1.0 meter total length, 50 mm unthreaded length, and 100 mm overall case length. Ensure your monitoring system supports the 75 Ω coaxial cable and the specified frequency response.
PLC Source PRO offers this new, original product in factory packing with a 12-month warranty. Contact us for availability and expedited shipping options.