Product Overview
The Bently Nevada 330904-00-09-10-02-05 is a 3300 NSv proximity probe designed for high-reliability vibration and position monitoring in rotating machinery. This industrial automation module delivers precise, non-contact measurements of shaft vibration and axial position, making it an essential component for predictive maintenance programs in process industries.
Built with a polyphenylene sulfide (PPS) probe tip and an AISI 304 stainless steel case, the 330904-00-09-10-02-05 offers superior chemical resistance compared to earlier 3300 RAM probes. Its side-view characteristics outperform the 3000-series 190 probe when gapping at the same distance from the target. This probe is mechanically and electrically interchangeable with previous Bently Nevada 3300 RAM systems, simplifying upgrades.
Key Features & Benefits
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Enhanced Chemical Resistance: Ideal for process compressor applications where aggressive media are present.
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Interchangeable Design: Compatible with existing 3300 RAM extension cables and systems.
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Precise Linear Range: 1.5 mm (60 mils) linear range with an incremental scale factor of 7.87 V/mm (200 mV/mil).
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Robust Construction: AISI 304 stainless steel case and PPS tip ensure durability in harsh environments.
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Wide Temperature Range: Operates from -52°C to +177°C (-62°F to +351°F).
Technical Specifications
| Parameter |
Value |
| Probe DC Resistance (RPROBE) |
4.2 ± 0.5 ohms (at 1.0 m length) |
| Linear Range |
1.5 mm (60 mils), from 0.25 mm 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 (up to 305 m of field wiring) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| Probe Cable |
75 Ω coaxial, FEP insulated (0.5, 1, 5, or 7 m lengths) |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Maximum Torque |
0.56 N•m (5 in•lb) recommended finger tight |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Probe Case Thread |
M8x1, max thread engagement 12 mm |
| Connector Type |
Miniature coaxial ClickLoc connector |
Industry Applications
This Bently Nevada 330904-00-09-10-02-05 proximity probe is widely used in:
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Process Compressors: The increased chemical resistance makes it suitable for harsh media environments.
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Turbomachinery: Monitoring shaft vibration and axial position in steam and gas turbines.
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Pumps and Motors: Detecting mechanical issues before they lead to failure.
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General Rotating Equipment: Providing reliable data for condition monitoring systems.
Installation Guidance
For optimal performance, mount the probe with the recommended gap of 1.0 mm (40 mils). Use finger-tight torque (0.56 N•m maximum) to avoid damaging the threads. Ensure the target surface is clean and meets the minimum diameter of 8.9 mm (0.35 in); for axial measurements on shafts smaller than 13 mm (0.5 in), expect scale factor changes—adjust the gap accordingly.
Field wiring should use three-conductor shielded triad cable with a maximum length of 305 meters (1,000 feet) between the Proximitor Sensor and the monitor. Follow the frequency response graphs (Figure 16 and Figure 17) to account for signal rolloff at high frequencies with longer wiring.
Maintenance & Reliability
Routine inspection of the probe tip and cable is recommended to ensure no physical damage or contamination. The PPS tip resists many chemicals, but verify compatibility with your specific process media. The stainless steel case provides excellent corrosion resistance. With proper installation, this probe offers long service life and reliable performance, reducing unplanned downtime.
Compatibility & Integration
The 330904-00-09-10-02-05 is designed to work with Bently Nevada 3300 XL NSv Proximitor Sensors and existing monitoring systems. It is mechanically and electrically interchangeable with previous 3300 RAM probes, allowing straightforward retrofits. The miniature coaxial ClickLoc connector ensures secure and quick cable attachment.
Selection Guide
When ordering this probe, verify the unthreaded length (00 mm), overall case length (90 mm), total length (1.0 meter), connector type (miniature coaxial ClickLoc), and agency approvals (Multiple Approvals). This part is new and original in factory packing, backed by a 12-month factory warranty. PLC Source PRO provides reliable sourcing for this and other industrial automation spares.