Bently Nevada 330906-02-12-10-02-CN Probe

3300 NSv Reverse Mount Probe 330906-02-12-10-02-CN

Product Introduction

The Bently Nevada 330906-02-12-10-02-CN belongs to the 3300 NSv series of reverse mount proximity probes. This model performs continuous monitoring of vibration and position in rotating machinery. It offers improved chemical resistance compared to the older 3300 RAM probe, which makes it suitable for process compressor environments. Moreover, the side-view characteristics of this probe surpass those of the 3000-series 190 probe when you set it at the same target distance. This particular version comes with 3/8-24 UNF threads, a 1.0 meter cable length, and a miniature coaxial ClickLoc connector. The Country Specific agency approval option also accompanies this model.

Technical Specifications

The 330906-02-12-10-02-CN probe provides a linear range of 1.5 mm (60 mils), starting at approximately 0.25 mm from the target and extending to 1.75 mm. We recommend a gap setting of 1.0 mm (40 mils) for optimal performance. The DC resistance from the center conductor to the outer conductor measures 4.2 ± 0.5 ohms. The probe tip consists of Polyphenylene sulfide (PPS), while the case uses AISI 304 stainless steel. The system accommodates field wiring from 0.2 to 1.5 mm2 (16 to 24 AWG), and Bently Nevada recommends using a three-conductor shielded triad cable. You can extend the cable length between the Proximitor Sensor and the monitor up to 305 meters (1,000 feet). The operating and storage temperature range for this probe spans from -52°C to +177°C.

Mechanical and Environmental Parameters

The mechanical design of the 330906-02-12-10-02-CN features a reverse mount configuration with robust thread engagement. We recommend a maximum installation torque of 7.5 N•m (66 in•lb), although the case can withstand up to 22.6 N•m. For the M10x1 thread option, the maximum thread engagement length reaches 15 mm. A Viton O-ring seals differential pressure between the probe tip and the case. However, sustained exposure to temperatures below -34°C may lead to premature seal failure. The system weight ranges from approximately 14 to 150 grams, depending on the specific configuration.

Installation Guidelines

Proper installation of the 3300 NSv Reverse Mount Probe ensures accurate measurements and a long service life. First, verify that the target surface is clean and free from debris. Next, thread the probe carefully into the mounting hole using the recommended torque of 7.5 N•m. Avoid exceeding the maximum rated torque to prevent damage. Then, connect the miniature coaxial ClickLoc connector, which locks securely to prevent loosening from vibration. Finally, set the initial gap to the recommended 1.0 mm using a suitable gap measurement tool. For field wiring, use shielded triad cable and keep the total length within 305 meters to avoid signal rolloff at high frequencies.

Packaging List

The following items come with each Bently Nevada 330906-02-12-10-02-CN probe:

• 1 x 3300 NSv Reverse Mount Probe assembly with 1.0 m cable

• 1 x Miniature coaxial ClickLoc connector (pre-attached)

• 1 x Installation instruction sheet

Shipping Information

We ship all orders for the 330906-02-12-10-02-CN via FedEx, UPS, or DHL. Delivery times vary by destination, but we ensure prompt dispatch within 24 hours of order confirmation.

Frequently Asked Questions

1. What is the difference between the 3300 NSv and the 3300 RAM probe?
   The 3300 NSv probe offers increased chemical resistance compared to the 3300 RAM probe, which allows its use in more aggressive process compressor environments.

2. Can I use this probe with a longer field cable?
   Yes, you can extend the field wiring up to 305 meters between the Proximitor Sensor and the monitor, but longer lengths may affect frequency response.

3. What is the recommended gap setting for the 330906-02-12-10-02-CN?
   We recommend a gap setting of 1.0 mm (40 mils) for optimal linear performance.

4. Is the ClickLoc connector compatible with standard cables?
   The miniature coaxial ClickLoc connector is specifically for Bently Nevada systems and locks into place to prevent loosening.

5. What is the maximum torque I should apply during installation?
   We recommend a maximum torque of 7.5 N•m (66 in•lb) for the reverse mount probe, although the case can withstand up to 22.6 N•m.