Bently Nevada 330709-000-230-10-12-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-230-10-12-00 is a 3300 XL 11 mm Proximity Probe, designed for high-performance eddy-current displacement and vibration measurement. Manufactured in the U.S.A., this probe features an M16 x 1.5 thread, a 230 mm overall case length, and a 1.0 meter total length. It is equipped with a miniature coaxial ClickLoc connector and FluidLoc cable, ensuring secure and reliable connections. The probe is ideal for use with 3300 XL systems and is suitable for a wide range of rotating machinery monitoring applications.

Technical Parameters

• Model: 330709-000-230-10-12-00
• Type: 3300 XL 11 mm Proximity Probe
• Thread: M16 x 1.5 (without armor)
• Unthreaded Length: 0 mm
• Overall Case Length: 230 mm
• Total Length: 1.0 meter (3.3 feet)
• Connector: Miniature coaxial ClickLoc connector, FluidLoc cable
• Agency Approval: Not required
• Probe DC Resistance (1.0 m length): 5.9 ± 0.5 ohms (center conductor to outer conductor)
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Probe Cable: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated
• Probe Case Torque (M16x1.5): Maximum rated 63.3 N•m (560 in•lb), Recommended 21.1 N•m (187 in•lb)
• Connector-to-connector torque: Finger tight recommended, maximum 0.565 N•m (5 in•lb)
• Minimum Bend Radius: 25.4 mm (1.0 in)
• Maximum Thread Engagement: 24 mm
• Operating and Storage Temperature: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 330709-000-230-10-12-00 probe is engineered for accuracy and durability. The 11 mm sensing element provides a linear output over a typical measurement range, suitable for shaft vibration and position monitoring. The probe’s DC resistance of 5.9 ± 0.5 ohms ensures consistent performance with compatible proximitors. The PPS tip and stainless steel case offer excellent environmental resistance, while the FEP-insulated cable maintains signal integrity over the 1.0 meter length. The probe’s temperature range of -52°C to +177°C allows operation in harsh industrial environments, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is widely used for monitoring vibration and axial position in rotating machinery, including turbines, compressors, pumps, and other critical equipment. It is suitable for use with 3300 XL monitoring systems, providing essential data for predictive maintenance and machine protection. The probe can be mounted on bearing housings or machine casings to measure shaft relative vibration and displacement.

Installation Guide

Proper installation is critical for accurate measurements. Ensure the probe is mounted with the recommended torque of 21.1 N•m (187 in•lb) for M16x1.5 threads. The probe case should be engaged to a maximum thread length of 24 mm. Connect the ClickLoc connector securely, tightening only to finger tight plus a maximum of 0.565 N•m (5 in•lb). Maintain a minimum bend radius of 25.4 mm for the cable to prevent damage. For optimal performance, the target surface should be flat with a minimum diameter of 30.5 mm, and the shaft diameter should be at least 152 mm to avoid cross-talk limitations.

Compatibility

The 330709-000-230-10-12-00 is part of the 3300 XL series and is compatible with Bently Nevada 3300 XL proximitors and monitoring systems. It uses a miniature coaxial ClickLoc connector, which is standard for 3300 XL extension cables. The probe is designed to work with 75 Ω triaxial cable systems.

Maintenance Advice

Regularly inspect the probe and cable for signs of wear, damage, or contamination. Clean the probe tip with a soft cloth and appropriate solvent if necessary. Ensure all connectors are tight and free from corrosion. Periodically verify the probe’s DC resistance to ensure it remains within specification. Avoid exposing the probe to temperatures below -34°C during storage or operation to prevent premature failure of the pressure seal.

Procurement Advice

When ordering the Bently Nevada 330709-000-230-10-12-00, verify that the model number matches your system requirements. Confirm the total length (1.0 meter) and connector type (ClickLoc) are correct for your installation. Consider purchasing spare probes to minimize downtime. Ensure you source from authorized distributors to guarantee genuine parts and warranty support.

FAQ

What is the measurement range of this probe?

The 3300 XL 11 mm probe typically provides a linear measurement range of about 2 mm (80 mils) when used with compatible proximitors, but the exact range depends on the target material and system calibration.

Can this probe be used in hazardous areas?

The probe has temperature classifications for potentially explosive atmospheres (EPL Ga, Gc, Dc) as listed in the specifications, but it requires proper certification and installation per local regulations. The agency approval option is ‘Not required’ for this model.

What is the difference between 3300 XL and 3300 NSv probes?

The 3300 XL series offers improved linearity and extended temperature range compared to NSv probes. This model is part of the 3300 XL series, providing enhanced performance for critical machinery monitoring.

How do I connect this probe to a 3300 XL monitoring system?

The probe connects via a ClickLoc connector to a compatible extension cable, which then connects to a 3300 XL proximitor. Ensure all components are rated for the same system voltage and frequency.

What is the recommended gap (mounting) for this probe?

The recommended mounting gap is typically set to the center of the linear range, often around 1.27 mm (50 mils) for 11 mm probes, but refer to the system calibration manual for exact settings.