MeloAuto-Trusted PLC & DCS Parts Supplier
This 3300 NSv proximity probe delivers precise shaft vibration and position measurements for critical turbomachinery. It operates as a key component within the Bently Nevada 3300 transducer system for predictive maintenance programs. The probe utilizes eddy current technology to produce a voltage signal proportional to the gap between its tip and the conductive target surface. Additionally, it maintains full backward compatibility with legacy 3300 RAM probe systems and extension cables.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 330703-000-040-10-12-00 |
| Product Type | 3300 NSv Proximity Probe |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 0.0 inch (fully threaded) |
| Overall Case Length | 40.0 mm / 1.57 in |
| Tip-to-Shoulder Length | 10.0 mm / 0.39 in |
| Connector Type | Miniature coaxial ClickLoc |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 304 stainless steel |
| Cable Insulation | FEP high-temperature material |
| Linear Range | 1.5 mm (60 mils) from 0.25 to 1.75 mm gap |
| Recommended Gap | 1.0 mm (approx. 40 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) ± interchangeability error |
| Linearity Deviation | < ±0.06 mm (±2.3 mils) |
| Frequency Response | 0 to 10 kHz (-3 dB typical) |
| Maximum Field Wiring | 305 meters |
| Operating Temperature | -52°C to +177°C |
| Minimum Bend Radius | 25.4 mm |
| Recommended Torque | 11.3 N·m (100 in·lb) |
| Weight | 0.15 kg |
Design and Installation Features
This probe features a 3/8-24 UNF thread for mounting in standard machine casings. The fully threaded configuration (0.0 mm unthreaded length) ensures maximum thread engagement for superior mounting stability. Its 40.0 mm overall case length suits applications requiring precise positioning within confined housing bores. Additionally, the ClickLoc connector provides a secure and reliable interface for extension cable attachment. This design simplifies installation and ensures consistent signal transmission.
Measurement Performance
This probe delivers a linear output from approximately -1 VDC to -13 VDC across its full measurement range. The incremental scale factor of 7.87 V/mm ensures consistent sensitivity for reliable machine condition monitoring. Linearity deviation under ±0.06 mm maintains measurement fidelity across the entire operating range. The system supports a 0 to 10 kHz frequency response with up to 305 meters of field wiring. Consequently, it suits high-speed turbomachinery monitoring applications effectively.
Environmental Durability
The probe operates reliably across extreme temperatures from -52°C to +177°C. The PPS tip and AISI 304 stainless steel case resist harsh chemicals and moisture encountered in process environments. The FEP cable insulation maintains flexibility and signal integrity under demanding conditions. A Viton O-ring seals differential pressure between the probe tip and case. Therefore, this probe excels in oil and gas, power generation, and heavy industrial applications.