Product Overview
The Bently Nevada 330903-00-05-10-12-05 is a 3300 NSv proximity probe designed for precise shaft vibration and position monitoring in critical rotating machinery. This industrial automation module features an M8x1 thread, a 1.0 meter total length, and a miniature coaxial ClickLoc connector with FluidLoc cable. It is part of the proven 3300 NSv series, offering enhanced chemical resistance compared to earlier 3300 RAM probes, making it ideal for process compressor applications.
With a linear range of 1.5 mm (60 mils) and an incremental scale factor of 7.87 V/mm (200 mV/mil), the 330903-00-05-10-12-05 delivers accurate, repeatable measurements. The probe operates across a wide temperature range of -52°C to +177°C, ensuring reliable performance in demanding environments.
Key Benefits & ROI
Upgrading to the 330903-00-05-10-12-05 reduces maintenance downtime and improves machine reliability. Its superior side-view characteristics and chemical resistance extend service life in harsh conditions, translating to lower total cost of ownership. The probe is mechanically and electrically interchangeable with previous 3300 RAM systems, simplifying retrofit projects and minimizing spare parts inventory.
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 dc Resistance (RPROBE) |
4.2 ± 0.5 ohms (for 1.0 m probe) |
| Extension Cable dc Resistance |
Center conductor: 0.220 Ω/m; Shield: 0.066 Ω/m |
| Extension Cable Capacitance |
69.9 pF/m typical |
| Field Wiring |
0.2 to 1.5 mm² (16 to 24 AWG); max length 305 m (1000 ft) |
| 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 |
| 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; 7.3 N•m (65 in•lb) max for probe case |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Thread Engagement |
M8x1, max 12 mm |
Real-World Applications
This Bently Nevada 330903-00-05-10-12-05 is commonly used in:
- Process compressor monitoring, where chemical resistance is critical.
- Turbine and generator shaft vibration measurement.
- Pump and motor condition monitoring in industrial plants.
Its compatibility with existing 3300 RAM systems makes it a direct replacement for legacy installations, ensuring minimal disruption to your monitoring architecture.
Installation & Setup Guidance
Proper installation ensures accurate readings. Follow these steps:
- Mount the probe with the recommended torque (finger tight, max 0.56 N•m) to avoid damaging the threads.
- Maintain the recommended gap setting of 1.0 mm (40 mils) for optimal linear operation.
- Route the cable with a bend radius of at least 25.4 mm (1.0 in) to prevent signal degradation.
- Use three-conductor shielded triad cable for field wiring, with a maximum length of 305 meters (1000 feet) to the monitor.
Maintenance & Reliability
Regularly inspect the probe tip and cable for contamination or damage. The stainless steel case and PPS tip resist corrosion, but verify the Viton O-ring seal remains intact to maintain pressure integrity. Store the probe within the specified temperature range to preserve performance. Periodic calibration checks against a known target ensure long-term accuracy.
Compatibility & Integration
The 330903-00-05-10-12-05 works seamlessly with Bently Nevada 3300 XL NSv Proximitor Sensors and monitors. It is electrically interchangeable with previous 3300 RAM probes, allowing easy upgrades. The ClickLoc connector simplifies cable attachment, reducing installation time.
Selection Guide & Purchasing Advice
Before ordering, verify your required total length, thread type, and connector options. This model is configured for a 1.0 meter total length with M8x1 thread and ClickLoc connector. For other configurations, contact PLC Source PRO to ensure correct part selection. All units ship new and original in factory packing with a 12-month warranty.