330910-05-11-10-02-00 Bently Nevada M10x1 Threaded Probe

Product Overview

The Bently Nevada 330910-05-11-10-02-00 is a specialized 3300 NSv Proximity Probe featuring an M10 x 1 thread and integrated stainless steel armor. The NSv (Narrow Side View) series is specifically engineered for use in small-bore applications and centrifugal process compressors where mounting space is limited. This probe offers superior chemical resistance and is electrically compatible with previous 3300 RAM proximity systems, making it an ideal choice for upgrading legacy monitoring hardware in volatile industrial environments.

Technical Configuration

• Manufacturer: Bently Nevada (Baker Hughes)
• Part Number: 330910-05-11-10-02-00
• Unthreaded Length: 50 mm
• Overall Case Length: 110 mm
• Total Length: 1.0 Meter (39 in)
• Connector Type: ClickLoc Miniature Coaxial Connector
• Armor Option: Integrated Stainless Steel Armor
• Agency Approvals: Option -00 (Not Required)

Technical Specifications

Mechanical & Application Advantages

1. Enhanced Chemical Resistance: The 3300 NSv probe tip is manufactured from high-grade Polyphenylene sulfide (PPS). This material allows the probe to withstand the aggressive chemical environments often found in centrifugal process compressors, outperforming the legacy 3300 RAM series in durability and longevity. The entire assembly is designed to be lightweight, with a typical system weight between 14 and 150 grams depending on the specific configuration.

2. Specialized Metric Case: Featuring a 110 mm total case length with a 50 mm unthreaded portion, this model is designed for precise positioning in deep-access machine ports. The integrated stainless steel armor protects the FEP-insulated coaxial cable from mechanical abrasion, while maintaining a minimum bend radius of 25.4 mm (1.0 in).

3. Superior Side-View Characteristics: The NSv design is optimized for applications where the probe tip must be mounted near adjacent metal surfaces. Its superior side-view characteristics ensure accurate vibration readings even when gapped in tight clearances that would cause interference in standard 3000-series probes.

Installation Guidelines

Gap Setting & Calibration: For optimal performance, the recommended gap setting is 1.0 mm (40 mils). The linear range spans from 0.25 mm to 1.75 mm (10 to 70 mils). To maintain the Incremental Scale Factor (ISF) within ±20%, ensure the target size is at least 13 mm (0.5 in) in diameter.

Torque Specifications: During installation into the machine case, Bently Nevada recommends a torque of 11.3 N•m (100 in•lb) for M10x1 threads. For the first three threads of engagement, do not exceed 22.6 N•m (200 in•lb) to avoid damaging the sensor housing.

Pressure Integrity: Designed to seal differential pressure via a Viton O-ring, the 330910-05-11-10-02-00 is suitable for pressurized housings. Note that exposing the probe to temperatures below -34°C (-30°F) may compromise the pressure seal integrity.

Technical FAQs

Q1: Is the 3300 NSv probe interchangeable with older systems?
A1: Yes, it is both mechanically and electrically interchangeable with the legacy 3300 RAM proximity probe and extension cable systems.

Q2: What is the maximum distance for field wiring?
A2: You can route field wiring up to 305 meters (1,000 feet) between the Proximitor Sensor and the monitor using three-conductor shielded triad cable (16 to 24 AWG).

Q3: How does target size affect the measurement?
A3: If the shaft diameter is smaller than 13 mm (0.5 in), the scale factor may change. In these cases, reducing the gap between the probe and target can help maintain measurement accuracy.