Bently Nevada 3300 NSv Compact Metric Proximity Probe

Meet the Bently Nevada 330903-00-11-05-02-CN, a compact and versatile M8 metric proximity probe from the 3300 NSv series. Designed for non-safety vibration monitoring in tight spaces, this probe features a short 110mm case and a 0.5-meter cable for easy installation on smaller machinery. Its M8x1 thread is the global standard for compact equipment, while its chemically resistant PPS tip ensures reliability in various industrial environments. This probe offers a perfect balance of size, performance, and compatibility.

Complete Model Number Breakdown

• Base Model: 330903 (3300 NSv Probe, M8x1 Thread, No Armor)
• Unthreaded Length (00): 0.0 mm
• Overall Case Length (11): 110 mm
• Total Cable Length (05): 0.5 meter (20 in)
• Connector & Cable (02): Miniature Coaxial ClickLoc, Standard Cable
• Agency Approval (CN): Country-Specific Configuration

Core Technical Specifications

• Thread Type: M8 x 1.0 metric thread
• Probe Resistance (0.5m): 4.0 Ω ± 0.5 Ω
• Linear Range: 1.5 mm (60 mils)
• Scale Factor: 7.87 V/mm (200 mV/mil) +12.5%/-20%
• Output Voltage: -1 to -13 Vdc over linear range
• Recommended Gap: 1.0 mm (40 mils)
• Frequency Response: 0 to 10 kHz (+0, -3 dB typical)
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Probe Tip: Polyphenylene Sulfide (PPS)
• Probe Case: AISI 304 Stainless Steel
• Max Torque (Case): 7.3 N•m (65 in•lb)
• Recommended Torque: 5.1 N•m (45 in•lb)
• Cable Type: 75 Ω Coaxial with FEP Insulation

Compatibility & Installation Notes

This probe is designed for use with Bently Nevada 3300 NSv and compatible monitoring systems. Install it into a standard M8x1.0 threaded hole. Do not exceed the maximum thread engagement of 12 mm. Use the recommended 5.1 N•m torque for installation. The short 0.5-meter cable is perfect for connecting to a nearby junction box. For field wiring, use three-conductor shielded cable, with a maximum run of 305 meters to the monitor.

Target & Application Guidance

• Minimum Target Size: 8.9 mm (0.35 in) diameter (flat target)
• Recommended Target: 13 mm (0.5 in) diameter or larger for consistent scale factor
• Typical Use: Ideal for vibration monitoring on small to medium-sized rotating equipment with metric fittings.

Ordering & Service Information

This genuine Bently Nevada product includes a 12-month factory warranty. We ship worldwide via FedEx, UPS, and DHL to ensure fast delivery.

Professional FAQs

What is the advantage of the M8x1 thread?

The M8x1 is a very common metric fine thread. It is the standard mounting size for proximity probes on a wide range of European and Asian machinery.

How does this NSv probe differ from an XL probe?

The NSv probe is designed for non-safety vibration monitoring, often with slightly different linear range and accuracy specs than the safety-rated XL series probes used in protection systems.

What does the "CN" suffix mean for this probe?

"CN" indicates a country-specific configuration, which may include special documentation, labeling, or marking requirements for certain markets.

Can I use this for axial position (thrust) measurement?

While possible, for axial position on shafts smaller than 13mm, the scale factor may change. Consult the manual's Figure 12 and use a smaller gap to minimize error.

Is the probe cable armor available for this model?

The base model 330903 is "without armor." Armored versions would have a different base model number (e.g., 330904).

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