Bently Nevada 330907-05-30-50-12-05 3300 NSv Probe

Bently Nevada 330907-05-30-50-12-05 3300 NSv Reverse Mount Probe

Product Introduction

The Bently Nevada 330907-05-30-50-12-05 is a high-performance reverse mount proximity probe built for demanding turbomachinery applications. As part of the 3300 NSv series, this model offers superior chemical resistance compared to the older RAM probes. Consequently, it is an excellent choice for process compressors and other harsh environments.

This specific model, 330907-05-30-50-12-05, features an M10X1 thread for secure mounting. Its total length option is 5.0 meters, providing flexibility for various installation setups. The connector option includes a miniature coaxial ClickLoc connector with a FluidLoc cable, ensuring a reliable and locked connection that prevents loosening due to vibration.

The side-view characteristics of the 3300 NSv probe are superior to those of the 190-series probes when gapped at the same distance. Furthermore, the patented TipLoc molding method guarantees a robust bond between the probe tip and its body, enhancing long-term reliability. Finally, its construction uses AISI 304 stainless steel for the case and PPS for the tip.

Technical Specifications

Electrical and Range Parameters
The Bently Nevada 330907-05-30-50-12-05 offers a linear range of 1.5 mm (60 mils), starting from approximately 0.25 mm (10 mils) from the target. Its recommended gap setting is 1.0 mm (40 mils). The probe DC resistance from the center conductor to the outer conductor is 5.3 ± 0.7 ohms. For field wiring, it supports 0.2 to 1.5 mm² (16 to 24 AWG) cable. Specifically, the maximum extension length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Mechanical and Material Details
The probe case is constructed from AISI 304 stainless steel, while the tip is made of Polyphenylene sulfide (PPS). The maximum rated torque for the reverse mount probe is 22.6 N•m (200 in•lb), with a recommended torque of 7.5 N•m (66 in•lb). Notably, the maximum length of thread engagement for the M10x1 thread is 15 mm. The system weight typically ranges from 14 to 150 g.

Environmental and Operating Conditions

Temperature and Pressure Ratings
This 3300 NSv probe operates within a wide temperature range of -52°C to +177°C (-62°F to +351°F). The storage temperature is identical to the operating temperature. However, please be aware that exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal. The probe uses a Viton O-ring to seal differential pressure between the tip and the case.

Installation Guidelines

Mounting and Connection
Installing the Bently Nevada 330907-05-30-50-12-05 requires careful attention to torque specifications. First, ensure the mounting surface is clean. Then, thread the probe into the housing by hand to avoid cross-threading. Finally, use a torque wrench to tighten it to the recommended 7.5 N•m (66 in•lb). The ClickLoc connector should be pushed in until it audibly clicks into place, securing the connection.

Wiring Considerations
For optimal performance, use a three-conductor shielded triad cable. The field wiring length can be up to 305 meters. Meanwhile, remember to consult the frequency response graphs for signal rolloff at high frequencies when using longer field wiring.

Packaging List

• 1x Bently Nevada 330907-05-30-50-12-05 3300 NSv Reverse Mount Probe

• 1x FluidLoc Coaxial Cable (Attached)

• 1x Installation Instructions Sheet

FAQ

Q1: What is the main advantage of the 3300 NSv probe over the RAM probe?
A: The 3300 NSv probe offers increased chemical resistance, making it ideal for use in process compressor applications where exposure to harsh chemicals is a concern.

Q2: Can I use this probe with any extension cable?
A: The probe uses a miniature coaxial ClickLoc connector. For optimal performance, use a three-conductor shielded triad cable up to a maximum of 305 meters.

Q3: What is the recommended gap for this model?
A: The recommended gap setting for the Bently Nevada 330907-05-30-50-12-05 is 1.0 mm (40 mils).

Q4: What is the operating temperature limit for this probe?
A: The probe can operate from -52°C to +177°C, but sustained exposure below -34°C may damage the pressure seal.

Q5: What type of threads does this specific model have?
A: This model, 330907-05-30-50-12-05, features an M10X1 thread for installation.