Bently Nevada 330907-05-30-05-02-CN NSv Probe

330907-05-30-05-02-CN Reverse Mount Probe

Product Introduction

The 330907-05-30-05-02-CN belongs to Bently Nevada's advanced 3300 NSv probe series. This reverse mount probe offers significantly improved chemical resistance compared to the earlier 3300 RAM probe. Therefore, it performs exceptionally well in many process compressor applications where exposure to harsh media is a concern. Furthermore, the side-view characteristics of this NSv probe are superior to those of the 3000-series 190 probe when gapped at the same distance from the target.

This particular model features M10 x 1 threads and a total length of 0.5 meter (20 inches). The "CN" suffix indicates country-specific agency approval, ensuring compliance with regional regulatory standards. The 330907-05-30-05-02-CN comes standard with a Miniature ClickLoc connector, which locks securely into place and effectively prevents connection loosening due to vibration. Additionally, Bently Nevada's patented TipLoc molding method creates a robust, durable bond between the probe tip and the probe body.

Technical Specifications

The electrical performance of this probe is precisely defined for consistent operation. The DC resistance from the center conductor to the outer conductor (RPROBE) measures 4.0 ± 0.5 Ω for this 0.5-meter length. This tight tolerance ensures accurate and repeatable signal transmission to the proximitor and monitoring system.

The probe tip is manufactured from Polyphenylene sulfide (PPS) , a material chosen for its excellent chemical resistance and mechanical stability. Meanwhile, the probe case is constructed from AISI 304 stainless steel (SST) , providing robust protection against corrosion and physical damage. The linear range of this sensor extends from approximately 0.25 mm to 1.75 mm (10 to 70 mils), with a recommended gap setting of 1.0 mm (40 mils) . The linear range begins at about 0.25 mm from the target, corresponding to approximately -1 to -13 Vdc output.

Mechanical and Environmental Parameters

Proper installation requires understanding the mechanical limits. The probe case features an M10 x 1 thread with a maximum thread engagement of 15 mm. For reverse mount probes like this model, the maximum rated torque is 22.6 N•m (200 in•lb), while the recommended torque is 7.5 N•m (66 in•lb). Following these torque guidelines helps prevent thread damage and ensures proper sealing.

The probe operates reliably across a wide temperature range from -52°C to +177°C (-62°F to +351°F) for both operating and storage conditions. However, sustained exposure to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal, so we advise caution in extremely cold environments. The probe also incorporates a Viton O-ring to seal differential pressure between the tip and case, making it suitable for pressurized applications. The system weight is approximately 14 to 150 grams (0.5 to 5.3 oz), depending on the specific configuration.

Installation and Mounting Guide

Installing the 330907-05-30-05-02-CN correctly ensures optimal performance and long service life. First, thoroughly clean the mounting hole and the probe threads. Next, carefully thread the probe into the housing using the M10x1 thread. We recommend applying the recommended torque of 7.5 N•m (66 in•lb) using a calibrated torque wrench to avoid over-tightening. Remember that the maximum thread engagement is 15 mm.

For field wiring, use three-conductor shielded triad cable with a conductor size of 0.2 to 1.5 mm² (16 to 24 AWG). When using ferrules, the recommended range is 0.25 to 0.75 mm² (18 to 23 AWG). The maximum cable length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet). Additionally, we suggest consulting the frequency response graphs for signal rolloff considerations at high frequencies when using longer field wiring lengths.

Packaging List

Your shipment for the Bently Nevada 330907-05-30-05-02-CN includes:

• 1 x 3300 NSv Reverse Mount Probe (0.5m cable)

• 1 x Miniature ClickLoc coaxial connector (attached)

• Installation and mounting instruction sheet

Frequently Asked Questions (FAQ)

1. What makes the 3300 NSv probe different from the 3300 RAM probe?
The 330907-05-30-05-02-CN offers increased chemical resistance compared to the 3300 RAM probe. This enhanced property makes it more suitable for process compressor applications where exposure to aggressive media is common.

2. Can I use this probe in high-vibration environments?
Yes. The ClickLoc connector locks into place and prevents loosening from vibration. Additionally, the patented TipLoc molding provides a robust bond between the probe tip and body, ensuring reliable performance in demanding conditions.

3. What is the recommended gap setting for this probe?
The recommended gap setting is 1.0 mm (40 mils) . The linear range extends from 0.25 mm to 1.75 mm (10 to 70 mils), so proper gapping within this range is essential for accurate measurements.

4. What is the maximum field wiring length for this system?
The maximum length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet). However, we recommend reviewing the frequency response graphs for signal rolloff effects when using longer cable runs.

5. What shipping methods are available for this item?
We ship all orders via FedEx, UPS, or DHL, depending on your location and preference. All packages are fully insured and tracked for your convenience.