Bently Nevada 330709-000-040-50-01-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-040-50-01-00 is a 3300 XL 11 mm Proximity Probe, designed for high-performance condition monitoring of rotating machinery. This model features an M16 x 1.5 thread, a 40 mm overall case length, and a 5.0-meter cable with a miniature coaxial ClickLoc connector. Manufactured in the U.S.A., this probe is engineered for accuracy and durability in industrial environments.

Technical Parameters

• Probe Type: 3300 XL 11 mm Proximity Probe
• Thread: M16 x 1.5
• Unthreaded Length: 0 mm
• Overall Case Length: 40 mm
• Total Length: 5.0 meters (16.4 feet)
• Connector: Miniature coaxial ClickLoc with connector protector
• Cable: 75 Ω triaxial, FEP insulated
• Probe DC Resistance: 7.2 ± 0.8 ohms
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Operating Temperature: -52°C to +177°C
• Recommended Torque: 21.1 N•m (187 in•lb)

Parameter Analysis

The 330709-000-040-50-01-00 is designed for use with a 5-meter Proximitor sensor only. The probe’s resistance is specified at 7.2 ± 0.8 ohms, ensuring consistent signal transmission. The PPS tip and stainless steel case provide robustness, while the FEP-insulated cable offers excellent dielectric properties. The temperature range of -52°C to +177°C makes it suitable for harsh environments, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is ideal for monitoring vibration and position in turbines, compressors, pumps, and other rotating machinery. It is commonly used in critical applications such as steam turbines, gas turbines, centrifugal compressors, and large pumps where precise shaft displacement measurements are essential for predictive maintenance and machine protection.

Installation Guide

Install the probe with a recommended torque of 21.1 N•m (187 in•lb). Ensure the thread engagement does not exceed 24 mm. The connector should be finger-tight, with a maximum torque of 0.565 N•m (5 in•lb). Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable. For optimal performance, observe the recommended minimum target size: flat surface diameter of 30.5 mm and shaft diameter of 152 mm.

Compatibility

This probe is part of the 3300 XL series and is compatible with Bently Nevada 3300 and 3500 monitoring systems. It is designed to work with the 5-meter Proximitor sensor (e.g., 3300 XL 11 mm Proximitor). The miniature coaxial ClickLoc connector ensures secure and reliable connections.

Maintenance Advice

Regularly inspect the probe cable and connector for damage. Clean the probe tip with a soft cloth and approved solvent. Avoid exposing the probe to temperatures below -34°C to prevent premature failure of the pressure seal. Periodically verify probe resistance and calibration to ensure accurate readings.

Procurement Advice

When ordering, verify the model number 330709-000-040-50-01-00 matches your system requirements. Ensure you have the correct Proximitor sensor (5-meter type). Consider purchasing spare probes for critical machinery to minimize downtime. Always source from authorized distributors like TenBN to guarantee genuine Bently Nevada products.

FAQ

What is the total length of this probe?

The total length is 5.0 meters (16.4 feet).

What type of connector does it use?

It uses a miniature coaxial ClickLoc connector with a connector protector.

What is the operating temperature range?

The operating temperature range is -52°C to +177°C.

Is this probe compatible with 3500 systems?

Yes, it is compatible with Bently Nevada 3300 and 3500 monitoring systems when used with the appropriate Proximitor.

What is the recommended installation torque?

The recommended torque for the M16x1.5 probe case is 21.1 N•m (187 in•lb).