330906-02-12-05-02-00 3300 NSv Reverse Mount Probe

The 330906-02-12-05-02-00 3300 NSv Reverse Mount Probe is a high-precision eddy-current proximity transducer specifically engineered for applications requiring reverse mounting in tight installation spaces. Designed for centrifugal air compressors, process gas compressors, refrigeration compressors, and other machinery with limited clearance, the 3300 NSv Reverse Mount Probe excels in delivering accurate radial vibration, axial position, and shaft speed measurements in compact or obstructed environments. Its reverse mount configuration allows it to operate efficiently in locations where standard Bently Nevada 3300 or 3300 XL probes cannot be installed due to counter bore or side-view restrictions.

This probe system is ideal for small target measurements, including radial vibration on shafts smaller than 51 mm (2 in) and axial position on flat targets less than 15 mm (0.6 in). The 3300 NSv Reverse Mount Probe supports multiple automation applications on fluid-filmed bearing machines, including radial vibration and radial position detection, axial (thrust) position monitoring, tachometer and zero-speed measurements, and phase reference (Keyphasor) signal acquisition.

Mechanically and electrically compatible with previous Bently Nevada 3300 RAM probes, the 3300 NSv Reverse Mount Probe allows seamless upgrades without replacing existing extension cables or Proximitor Sensors. For older 3000-series or 7000-series transducer systems, full replacement with NSv components ensures optimal performance. The probe features an average scale factor of 7.87 V/mm (200 mV/mil), offering precise output for eddy-current applications while maintaining a linear range of 1.5 mm (60 mils), surpassing the linearity of 3000-series 190 transducers.

Constructed with enhanced chemical resistance, the 3300 NSv Reverse Mount Probe is suitable for process environments, while its superior side-view design ensures consistent gapping and reliable measurement performance. Available in multiple probe case configurations, the reverse mount version includes 3⁄8-24 or M10X1 threads. All system components incorporate gold-plated brass ClickLoc connectors to prevent loosening, with patented TipLoc molding and CableLoc designs providing mechanical robustness and 220 N (50 lb) pull strength. Connector protectors safeguard against liquids entering the connection, ensuring long-term reliability of the automation system.

In automation applications where compact installation, high-precision shaft monitoring, and durable performance are required, the 330906-02-12-05-02-00 3300 NSv Reverse Mount Probe delivers unmatched reliability and versatility, making it an essential component for advanced vibration and position monitoring systems.

What is 330906-02-12-05-02-00?

The 330906-02-12-05-02-00 3300 NSv Reverse Mount Probe is designed for precise monitoring in centrifugal air compressors, refrigeration compressors, process gas compressors, and other machines with restricted installation spaces. With a 0.5-meter (20 in) cable and 3/8-24 UNF thread, the 330906-02-12-05-02-00 ensures secure mounting and accurate measurements. Its linear range of 1.5 mm (60 mils) and recommended gap of 1.0 mm (40 mils) allow detailed radial vibration and axial position tracking. The probe operates over -52°C to +177°C (-62°F to +351°F) and features a polyphenylene sulfide (PPS) tip with AISI 304 stainless steel body, supporting automated monitoring under demanding conditions. Gold-plated ClickLoc connectors with 7.5 N•m recommended torque provide reliable connections, while the patented TipLoc and CableLoc designs deliver robust cable-to-probe bonding. The 330906-02-12-05-02-00 facilitates upgrades from older 3300 RAM and 3000/7000-series 190 transducer systems, allowing automation systems to use existing extension cables and monitoring setups while improving small-target sideview measurements.

How is radial vibration measured?

The 330906-02-12-05-02-00 3300 NSv Reverse Mount Probe measures radial vibration on shafts smaller than 51 mm (2 in) using its 1.5 mm (60 mils) linear range and recommended gap of 1.0 mm (40 mils), providing precise monitoring for centrifugal and refrigeration compressors.

How is axial position tracked?

With a PPS probe tip and AISI 304 stainless steel body, the 330906-02-12-05-02-00 can detect axial (thrust) movement on flat targets down to 15 mm (0.6 in), enabling accurate position readings in fluid-film bearing machines.

How are phase reference and zero-speed signals supported?

Equipped with gold-plated ClickLoc connectors and a supply sensitivity of less than 2 mV per volt, the 330906-02-12-05-02-00 3300 NSv Reverse Mount Probe delivers reliable phase reference and zero-speed signals for automated control systems.

What cable and connector are used?

The 330906-02-12-05-02-00 comes with a 0.5-meter (20 in) miniature coaxial cable and ClickLoc connector, allowing installation in tight spaces while maintaining a robust 7.5 N•m recommended torque connection.

What temperature range is supported?

Operating between -52°C to +177°C (-62°F to +351°F), the 330906-02-12-05-02-00 supports extreme process environments without performance loss, ensuring reliable automated measurement.

How is the probe optimized for small targets?

The 330906-02-12-05-02-00 is optimized for sideview and rearview applications, providing precise monitoring where older 3300 RAM or 190 series probes cannot reach, without requiring system recalibration.

1. Compact Design for Constrained Installations

The 3300 NSv Reverse Mount Probe (330906-02-12-05-02-00) is purpose-built for applications where conventional probes cannot be accommodated. Its reverse mount configuration facilitates precise installation in counter bore, side-view, and rear-view restricted locations, making it ideal for centrifugal compressors, refrigeration compressors, and process gas compressors with limited installation envelope.

2. High-Fidelity Vibration and Position Sensing

Engineered for radial and axial vibration measurement, the probe delivers precise shaft position, thrust, and Keyphasor signals on small-diameter shafts (<51 mm) and flat targets (<15 mm). The 1.5 mm linear range ensures high-resolution monitoring, surpassing legacy 3000-series 190 systems and enabling reliable predictive maintenance and real-time condition monitoring in high-speed rotating machinery.

3. Superior Mechanical and Electrical Integrity

Featuring gold-plated ClickLoc connectors, TipLoc molded probe tips, and CableLoc cable retention, the probe ensures robust mechanical attachment and consistent electrical signal integrity. Connector protectors safeguard against fluid ingress, making it suitable for harsh industrial and process environments.

4. Enhanced Chemical and Thermal Resistance

Constructed from polyphenylene sulfide (PPS) probe tips and AISI 304 stainless steel casings, the probe withstands extreme temperatures (-52°C to +177°C) and chemical exposure, supporting long-term reliability in challenging process automation applications.

5. Seamless System Upgrade and Interoperability

The 3300 NSv probe is fully mechanically and electrically compatible with prior Bently Nevada 3300 RAM and 3000/7000-series 190 transducer systems, allowing cost-effective upgrades while reusing existing extension cables and monitoring infrastructure.

6. Optimized for Small Target and Side-View Applications

With enhanced side-view capabilities and precise small-target adaptability, the probe outperforms earlier Bently Nevada designs, ensuring accurate measurements in restricted-gap or compact installations without compromising reliability or system integration.