Bently Nevada 330906-02-12-05-02-00 NSv Probe

Bently Nevada 330906-02-12-05-02-00 3300 NSv Reverse Mount Proximity Probe

Overview of the 3300 NSv Reverse Mount Sensor for Compressor Monitoring

The Bently Nevada 330906-02-12-05-02-00 is a high-performance reverse mount proximity probe from the reliable 3300 NSv series. This sensor is specifically designed to provide precise shaft vibration and position measurements in challenging industrial environments. Furthermore, its construction features a robust AISI 304 stainless steel case and a PPS tip, ensuring durability and longevity. Specifically, this model offers superior side-view characteristics and increased chemical resistance compared to older probes. It is an ideal solution for monitoring critical turbomachinery like process compressors.

Technical Specifications of the Bently Nevada 330906 Reverse Mount Probe

The Bently Nevada 330906-02-12-05-02-00 delivers accurate and stable readings for effective machine protection. Its performance is defined by several key parameters.

• Probe DC Resistance: The resistance from the center conductor to the outer conductor is 4.0 ± 0.5 ohms.

• Linear Range: This model provides a linear range of 1.5 mm (60 mils) , starting from approximately 0.25 mm (10 mils) up to 1.75 mm (70 mils) from the target.

• Recommended Gap Setting: For optimal performance, the recommended gap setting is 1.0 mm (40 mils) .

• Field Wiring: It is recommended to use a three-conductor shielded triad cable. The maximum field wiring length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet) .

• Connector: This unit comes standard with a miniature coaxial ClickLoc connector for a secure, locking connection.

Mechanical and Environmental Parameters for the 3300 NSv Reverse Mount Model

The 3300 NSv Reverse Mount Probe is built to withstand harsh conditions. Its mechanical and environmental tolerances are critical for reliable field installation.

• Probe Tip Material: Polyphenylene sulfide (PPS).

• Probe Case Material: AISI 304 stainless steel (SST) .

• Case Thread: 3/8-24 UNF .

• Maximum Thread Engagement (M10x1): 15 mm.

• Operating Temperature: The probe functions reliably from -52°C to +177°C (-62°F to +351°F) .

• Storage Temperature: Same as operating range, from -52°C to +177°C.

• Critical Note: Exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal.

• Pressure Capability: The probe seals differential pressure between the tip and case using a Viton O-ring.

• Case Torque (Reverse Mount): The maximum rated torque is 22.6 N•m (200 in•lb) , while the recommended installation torque is 7.5 N•m (66 in•lb) .

Installation Guidance for the 330906-02-12-05-02-00 Proximity Sensor

Proper installation of the Bently Nevada 330906-02-12-05-02-00 ensures accurate measurements and a long service life. First, verify that the target surface is clean and within the specified linear range. Next, set the initial gap to the recommended 1.0 mm (40 mils) using a non-conductive feeler gauge. Then, tighten the probe case to the recommended torque of 7.5 N•m (66 in•lb) to avoid damaging the threads or the seal. Additionally, ensure the ClickLoc connector is fully engaged until it clicks into place, which prevents loosening due to vibration. Finally, route the field wiring using shielded triad cable, keeping the total length within the 305-meter limit.

Packaging List for the Bently Nevada 3300 NSv Reverse Mount Probe

• Bently Nevada 330906-02-12-05-02-00 Probe Unit (with 0.5m cable and ClickLoc connector)

• Installation Instructions Sheet

Note: Certificates and warranty documents are not included in this standard packaging.

Frequently Asked Questions About the 3300 NSv Reverse Mount Probe

1. What is the difference between the 3300 NSv and the standard 3300 RAM probe?
The 3300 NSv probe offers increased chemical resistance compared to the 3300 RAM probe, making it more suitable for process compressor applications where chemical exposure is a concern.

2. What type of connector does the 330906-02-12-05-02-00 use?
This specific model, 330906-02-12-05-02-00 , comes with a miniature coaxial ClickLoc connector, which provides a secure, locking connection that resists loosening from vibration.

3. What is the recommended gap setting for this Bently Nevada probe?
The recommended gap setting for the Bently Nevada 330906-02-12-05-02-00 is 1.0 mm (40 mils) to ensure optimal performance within its linear range.

4. Can this probe be used in high-temperature environments?
Yes, it can operate in temperatures ranging from -52°C to +177°C. However, avoid prolonged exposure below -34°C to prevent pressure seal failure.

5. What is the maximum cable extension length for this sensor system?
The maximum field wiring length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet) when using the recommended shielded triad cable.