Product Overview
The Bently Nevada 330904-00-10-70-01-00 is a 3300 NSv proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module features an M8X1 threaded case with armor, a 7.0-meter cable, and a miniature coaxial ClickLoc connector with connector protector. It is mechanically and electrically interchangeable with the previous 3300 RAM probe, offering enhanced chemical resistance for demanding process compressor applications.
Key Specifications
| Parameter |
Value |
| Model |
330904 - 3300 NSv Probe, M8X1 thread, with armor |
| Unthreaded Length |
00 mm |
| Overall Case Length |
100 mm |
| Total Length |
7.0 meters (23.0 feet) |
| Connector |
Miniature coaxial ClickLoc connector with connector protector, standard cable |
| Agency Approval |
Not required |
| Probe DC Resistance (RPROBE) |
5.9 ± 0.9 ohms |
| 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 |
| Target Size (flat target) |
Minimum: 8.9 mm (0.35 in) diameter; Recommended: 13 mm (0.5 in) diameter |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specification |
75 Ω coaxial, FEP insulated; lengths: 0.5, 1, 5, or 7 meters |
| Maximum Torque |
0.56 N•m (5 in•lb) |
| 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 Case Thread |
M8x1, maximum thread engagement 12 mm |
Performance and Compatibility
The 330904-00-10-70-01-00 delivers a linear range of 1.5 mm (60 mils) with an incremental scale factor of 7.87 V/mm, ensuring accurate displacement measurements. Its frequency response of 0 to 10 kHz covers typical machine vibration frequencies. The probe is fully compatible with Bently Nevada's 3300 XL NSv Proximitor Sensor, and field wiring can extend up to 305 meters (1,000 feet) using a three-conductor shielded triad cable.
This probe is engineered for harsh environments, with a PPS tip and 304 SST case providing excellent chemical and mechanical resilience. The side-view characteristics are superior to the 3000-series 190 probe, making it ideal for tight axial clearance installations.
Installation Guidance
Install the probe finger tight, then apply a maximum torque of 0.56 N•m (5 in•lb) to secure it. Ensure the target surface is clean and the gap is set to 1.0 mm (40 mils) for optimal performance. For shaft diameters smaller than 13 mm (0.5 in), expect scale factor changes; reducing the gap helps minimize this effect. Respect the minimum bend radius of 25.4 mm (1.0 in) for the cable to avoid damage.
Maintenance and Reliability
Routine inspection should focus on cable integrity, connector tightness, and probe tip condition. The probe's PPS tip and stainless steel case resist corrosion, but periodic checks in abrasive or chemically aggressive environments are recommended. The Viton O-ring seals differential pressure, but probes are not pressure-tested before shipment; for pressure-sensitive applications, request a custom pressure seal test.
Selection Guide
When selecting this probe, verify the total length (7.0 m), thread type (M8X1), and connector option (ClickLoc). Confirm your Proximitor sensor model and ensure field wiring meets the specified resistance and capacitance limits. For guaranteed authenticity and factory-sealed condition, choose PLC Source PRO as your supplier—we provide new, original parts with a 12-month warranty.