Introduction to the Bently Nevada 330907-05-30-05-02-CN
The Bently Nevada 330907-05-30-05-02-CN is a 3300 NSv Reverse Mount Probe engineered for demanding industrial vibration monitoring. This Industrial Automation Module delivers reliable shaft vibration and position measurement in harsh environments, particularly where chemical resistance is critical. With its side-view design and robust construction, the 330907-05-30-05-02-CN outperforms traditional probes in process compressor applications.
Part of the proven 3300 NSv series, this reverse mount probe features M10X1 threads, a 0.5 meter (20 inch) total length, and a miniature coaxial ClickLoc connector with standard cable. The country-specific agency approval (CN) ensures compliance for targeted regions. Manufactured in the U.S.A., this probe is built to exacting Bently Nevada standards.
Technical Specifications Breakdown
The Bently Nevada 330907-05-30-05-02-CN offers precise measurement capabilities backed by clearly defined parameters. Below are the key specifications from the manufacturer:
| Parameter |
Value |
| Probe DC Resistance (RPROBE) |
4.0 ± 0.5 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) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| 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 Probe Case Torque |
22.6 N•m (200 in•lb) rated; 7.5 N•m (66 in•lb) recommended |
| System Weight (Probe) |
Approximately 14 to 150 g (0.5 to 5.3 oz) |
The linear range of 1.5 mm (60 mils) starts at approximately 0.25 mm (10 mils) from the target, providing a wide measurement window. The recommended gap setting of 1.0 mm (40 mils) ensures optimal performance. The probe operates across an extreme temperature range from -52°C to +177°C, making it suitable for severe industrial environments.
Industry Applications
The Bently Nevada 330907-05-30-05-02-CN excels in applications where chemical exposure is a concern. Compared to the 3300 RAM probe, the NSv variant offers enhanced chemical resistance, making it ideal for process compressor installations. Typical use cases include:
- Process compressors in petrochemical plants
- Turbo machinery vibration monitoring
- Shaft position and eccentricity measurement
- Refinery and gas processing equipment
In these settings, the probe's side-view characteristics provide superior gapping accuracy compared to 3000-series 190 probes, even at the same distance from the target. This reliability translates into reduced downtime and improved machine protection.
Installation & Setup Guidance
Proper installation of the 330907-05-30-05-02-CN is crucial for accurate readings. The probe uses M10X1 threads with a maximum thread engagement of 15 mm. When mounting, apply the recommended torque of 7.5 N•m (66 in•lb) to avoid damaging the probe case. The ClickLoc connector locks securely, preventing loosening during operation.
For field wiring, use a three-conductor shielded triad cable. The acceptable wire gauge ranges from 0.2 to 1.5 mm² (16 to 24 AWG), or 0.25 to 0.75 mm² (18 to 23 AWG) when using ferrules. Keep the cable length between the Proximitor Sensor and monitor to a maximum of 305 meters (1,000 feet) to minimize signal degradation.
Ensure the probe tip is positioned at the recommended gap of 1.0 mm (40 mils) from the target surface. Calibrate the system according to the frequency response graphs (Figure 16 and Figure 17) if longer wiring lengths are used.
Maintenance & Reliability
The Bently Nevada 330907-05-30-05-02-CN is designed for long service life with minimal maintenance. Its AISI 304 stainless steel case and PPS tip resist corrosion and chemical attack. The patented TipLoc molding method provides a robust bond between the probe tip and body, reducing the risk of mechanical failure.
Regular inspection should include checking the probe cable for damage and verifying that the ClickLoc connector remains securely locked. Avoid exposing the probe to temperatures below -34°C (-30°F) for sustained periods, as this may cause premature failure of the pressure seal. The Viton O-ring sealing material maintains differential pressure integrity between the probe tip and case.
By following these simple maintenance practices, you can extend the operational life of the probe and avoid costly unscheduled downtime.
Selection Guide & Purchasing Advice
When selecting a replacement or upgrade for your vibration monitoring system, verify that the 330907-05-30-05-02-CN matches your existing Proximitor Sensor and monitor requirements. The probe's 0.5 meter (20 inch) cable and miniature coaxial ClickLoc connector are standard, but confirm compatibility with your system's field wiring.
Consider the environmental conditions of your installation, including temperature, pressure, and chemical exposure. The 330907-05-30-05-02-CN is optimized for process compressor applications, but its robust design suits various industrial settings.
For reliable sourcing, PLC Source PRO offers genuine Bently Nevada components with verified specifications. Ensure you order the exact part number to guarantee proper fit and performance.