Product Overview
When machinery vibration threatens uptime, the Bently Nevada 330905-00-05-10-11-00 3300 NSv Proximity Probe delivers precise shaft displacement measurement. This industrial automation module is engineered for process compressor and rotating equipment monitoring, offering superior chemical resistance compared to earlier 3300 RAM probes. The 330905-00-05-10-11-00 is mechanically and electrically interchangeable with previous Bently Nevada 3300 RAM probes, 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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Side-view characteristics superior to 3000-series 190 probes when gapping at the same distance from the target.
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Fully interchangeable with legacy 3300 RAM probe and extension cable.
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M10X1 thread with unthreaded length 0 mm, overall case length 50 mm, and 1.0 meter (39 in) total length.
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Miniature coaxial ClickLoc connector with connector protector and FluidLoc cable for secure, reliable connections.
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New & original in factory packing with 12-month warranty.
Technical Specifications
| Parameter |
Value |
| Probe dc Resistance (0.5 m) |
4.0 ± 0.5 ohms |
| Extension cable dc resistance |
Center conductor: 0.220 Ω/m (0.067 Ω/ft); Shield: 0.066 Ω/m (0.020 Ω/ft) |
| Extension cable capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Field wiring |
0.2 to 1.5 mm² (16 to 24 AWG); with ferrules 0.25 to 0.75 mm² (18 to 23 AWG). Max length 305 m (1000 ft) to monitor. |
| Linear range |
1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils), approximately -1 to -13 Vdc |
| 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 (with up to 305 m field wiring) |
| Target size (flat) |
Minimum 8.9 mm (0.35 in) diameter; recommended 13 mm (0.5 in) |
| Probe tip material |
Polyphenylene sulfide (PPS) |
| Probe case material |
AISI 304 stainless steel (SST) |
| Probe cable |
75 Ω coaxial, FEP insulated; lengths 0.5, 1, 5, or 7 m |
| Maximum torque |
0.56 N•m (5 in•lb), recommended finger tight |
| Minimum bend radius |
25.4 mm (1.0 in) |
| 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 pressure sealing |
Viton O-ring; designed to seal differential pressure |
| Connector-to-connector torque (M10X1) |
Max 33.9 N•m (300 in•lb), recommended 11.3 N•m (100 in•lb) |
| Connector-to-connector torque (first three threads) |
Max 22.6 N•m (200 in•lb), recommended 7.5 N•m (66 in•lb) |
Industry Applications
The Bently Nevada 330905-00-05-10-11-00 is a versatile industrial automation module used for:
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Process compressors – where chemical resistance is critical for reliable monitoring in harsh environments.
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Turbomachinery – axial and radial shaft position monitoring to prevent catastrophic failures.
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Pumps and fans – vibration and displacement measurement to optimize maintenance schedules.
Thanks to its compatibility with legacy 3300 RAM systems, the 330905-00-05-10-11-00 offers a drop-in replacement that improves chemical resilience without requiring system redesign.
Installation & Setup
Proper installation is essential for accurate readings. The 330905-00-05-10-11-00 uses an M10X1 thread; install with finger tight torque, then apply up to 0.56 N•m (5 in•lb) maximum. Ensure the target surface is flat and meets the minimum diameter requirement (8.9 mm). For shaft diameters smaller than 13 mm (0.5 in), adjust the gap to minimize scale factor changes. Use the recommended field wiring: three-conductor shielded triad cable, up to 305 meters (1000 feet) to the monitor. Connect using the miniature coaxial ClickLoc connector, ensuring a secure fit with the connector protector.
Maintenance & Reliability
The 330905-00-05-10-11-00 is built for long-term reliability. Its stainless steel case and PPS tip resist corrosion and wear. The Viton O-ring seals the probe against differential pressure, but note that probes are not pressure-tested before shipment—if your application requires pressure seal verification, request it separately. Regularly inspect the cable for bends beyond the 25.4 mm (1.0 in) minimum radius, and check the connector for tightness. With proper care, this industrial automation module delivers consistent performance, reducing downtime and maintenance costs.
Selection Guide & Purchasing Advice
Before ordering, confirm your system requirements: thread size (M10X1), unthreaded length (0 mm), overall case length (50 mm), total length (1.0 m), and connector type (ClickLoc). The 330905-00-05-10-11-00 is a direct replacement for many 3300 RAM probes, but always verify compatibility with your existing extension cable and Proximitor sensor. For expert assistance, contact PLC Source PRO—your trusted source for genuine industrial automation parts.