Bently Nevada 330907-05-30-50-02-00 NSv Reverse Mount Probe

Bently Nevada 330907-05-30-50-02-00 NSv Reverse Mount Probe

Product Introduction

The Bently Nevada 330907-05-30-50-02-00 is a high-performance 3300 NSv reverse mount proximity probe engineered for critical rotating machinery monitoring. This configuration includes M10X1 probe threads, a 5.0 meter (16.4 feet) total length, and a Miniature coaxial ClickLoc connector with standard cable. Additionally, this probe offers increased chemical resistance compared to the 3300 RAM probe, making it particularly suitable for process compressor applications. For instance, its side-view characteristics are superior to those of the 3000-series 190 probe when gapping at the same target distance.

This reverse mount probe features the patented TipLoc molding method, which provides a robust bond between the probe tip and body. Furthermore, all transducer system components use gold-plated brass ClickLoc connectors that lock securely into place, effectively preventing connection loosening from vibration. Consequently, the 330907-05-30-50-02-00 delivers reliable, uninterrupted measurements in demanding industrial environments. Moreover, its linear range spans 1.5 mm (60 mils) , beginning at approximately 0.25 mm from the target and extending from 0.25 to 1.75 mm (10 to 70 mils), corresponding to roughly -1 to -13 Vdc.

Technical Specifications

Electrical Characteristics

The probe's electrical parameters are essential for accurate proximity measurement. First, the probe DC resistance from the center conductor to the outer conductor (RPROBE) measures 5.3 ± 0.7 ohms for this 5.0-meter length. Second, for field wiring, you can use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, with 0.25 to 0.75 mm² (18 to 23 AWG) recommended when using ferrules. Meanwhile, Bently Nevada recommends using three-conductor shielded triad cable for optimal signal integrity. Furthermore, the maximum field wiring length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet) . However, you should consult the frequency response graphs (Figure 16 and Figure 17) for signal rolloff details at high frequencies when using longer wiring runs.

Mechanical Construction

Constructed with a Polyphenylene sulfide (PPS) probe tip and an AISI 304 stainless steel (SST) probe case, this sensor offers excellent durability. Additionally, the reverse mount design accommodates a maximum thread engagement length of 15 mm for the M10x1 thread. Specifically, the system weight for the probe alone ranges from approximately 14 to 150 g (0.5 to 5.3 oz) , depending on the specific configuration. Besides, the maximum rated torque for reverse mount probes is 22.6 N•m (200 in•lb) , while the recommended torque is 7.5 N•m (66 in•lb) to ensure proper installation without damage.

Environmental Ratings

The 330907-05-30-50-02-00 operates reliably across a wide temperature spectrum. First, its operating temperature range spans -52°C to +177°C (-62°F to +351°F) . Second, the storage temperature range is identical, from -52°C to +177°C. However, you should note that exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal. Furthermore, this probe is designed to seal differential pressure between the probe tip and case, using a Viton O-ring as the sealing material. Consequently, it performs well in high-pressure process environments typical of compressors.

Installation Guidelines

Proper installation of the 330907-05-30-50-02-00 is vital for achieving accurate, repeatable measurements. First, ensure the mounting surface is clean and the threads are free from debris. Next, apply the recommended torque of 7.5 N•m (66 in•lb) when installing the reverse mount probe, never exceeding the 22.6 N•m (200 in•lb) maximum rating. Remember, the recommended gap setting for this probe is 1.0 mm (40 mils) , which positions the probe within its optimal linear range. For field wiring, use three-conductor shielded triad cable and observe proper termination practices. Finally, always verify the connection security of the ClickLoc connector, as its locking mechanism prevents loosening from machinery vibration.

Packaging List

• 1 x Bently Nevada 330907-05-30-50-02-00 NSv Reverse Mount Probe (M10X1 threads, 5.0m length)

• Installation instructions (reference drawing)

Note: Cables, mounting hardware, and Proximitor sensors are sold separately. Shipping is handled via FedEx, UPS, or DHL.

Frequently Asked Questions

1. What applications is the 330907-05-30-50-02-00 best suited for?
This probe is specifically designed for process compressor applications due to its increased chemical resistance. Additionally, its superior side-view characteristics make it ideal for tight mounting spaces.

2. What is the linear range of this Bently Nevada NSv probe?
The linear range spans 1.5 mm (60 mils) , beginning at approximately 0.25 mm from the target. Specifically, the usable range extends from 0.25 to 1.75 mm (10 to 70 mils).

3. Can I use this probe with longer field wiring?
Yes, the maximum field wiring length is 305 meters (1,000 feet) between the Proximitor and the monitor. However, you should check the frequency response graphs for high-frequency signal rolloff.

4. What torque should I apply when installing this reverse mount probe?
The recommended installation torque is 7.5 N•m (66 in•lb) . Furthermore, never exceed the maximum rated torque of 22.6 N•m (200 in•lb) to avoid damaging the probe.

5. What temperature limits should I observe for this probe?
The operating and storage temperature range is -52°C to +177°C (-62°F to +351°F) . However, avoid prolonged exposure below -34°C (-30°F) to prevent premature pressure seal failure.