Product Overview
The Bently Nevada 330905-00-08-05-01-00 is a 3300 NSv proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module delivers precise measurements with a linear range of 1.5 mm and an incremental scale factor of 7.87 V/mm, ensuring accurate data for predictive maintenance and machine protection.
This specific configuration features an M10x1 threaded case without armor, an 80 mm overall case length, and a 0.5 meter cable with a miniature coaxial ClickLoc connector and connector protector. The probe is mechanically and electrically interchangeable with the previous 3300 RAM probe, offering enhanced chemical resistance for demanding process compressor applications.
Technical Specifications
| Parameter |
Value |
| Linear Range |
1.5 mm (60 mils) from 0.25 to 1.75 mm (10 to 70 mils) |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Incremental Scale Factor (ISF) |
7.87 V/mm (200 mV/mil) ±12.5%/-20% |
| Deviation from Best Fit Straight Line (DSL) |
Less than ±0.06 mm (±2.3 mils) |
| Frequency Response |
0 to 10 kHz: +0, -3 dB typical |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Probe dc Resistance (0.5 m length) |
4.0 ± 0.5 ohms |
| Extension Cable Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
These specifications ensure the 330905-00-08-05-01-00 delivers consistent performance across its entire operating range, making it suitable for high-vibration environments.
Industry Applications
The Bently Nevada 330905-00-08-05-01-00 excels in applications requiring precise shaft vibration and position monitoring. Typical use cases include:
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Process Compressors: The enhanced chemical resistance of the NSv probe allows reliable operation in harsh media environments.
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Turbomachinery: Monitor radial and axial shaft motion to detect misalignment, unbalance, or bearing wear early.
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Pumps and Fans: Provide continuous protection against excessive vibration that could lead to catastrophic failure.
In each scenario, the 330905-00-08-05-01-00 helps reduce unplanned downtime by delivering accurate, real-time data to your condition monitoring system.
Installation & Setup Guidance
Proper installation is critical for optimal performance. Follow these guidelines when mounting the 330905-00-08-05-01-00:
- Thread the probe into the mounting hole using finger-tight torque initially, then tighten to a maximum of 0.56 N·m (5 in·lb).
- Ensure the target surface is clean and free of runout. For flat targets, use a minimum diameter of 8.9 mm (0.35 in); a recommended minimum of 13 mm (0.5 in) is advised for consistent scale factor.
- Set the initial gap to 1.0 mm (40 mils) for optimal linear operation.
- Route the cable with a minimum bend radius of 25.4 mm (1.0 in) to avoid damage.
For axial position measurements on shafts smaller than 13 mm (0.5 in) diameter, be aware that the scale factor may change; reducing the probe-to-target gap can mitigate this effect.
Maintenance & Reliability
The Bently Nevada 330905-00-08-05-01-00 is built for long service life, but regular inspection ensures reliability:
- Periodically check the probe cable for cuts, abrasions, or kinks that could affect signal integrity.
- Verify that the mounting threads remain secure and free of corrosion.
- Clean the probe tip with a soft cloth if contaminants accumulate; avoid harsh solvents that may damage the PPS tip.
With proper care, this industrial automation module provides years of dependable operation, minimizing lifecycle costs and maximizing return on investment.
Selection Guide & Purchasing Advice
Before purchasing, verify that the 330905-00-08-05-01-00 matches your system requirements. Confirm the thread size (M10x1), overall case length (80 mm), and total cable length (0.5 m) align with your installation. Ensure compatibility with your existing Bently Nevada 3300 XL monitoring system and extension cables.
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