Bently Nevada 330709-000-040-50-02-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-040-50-02-00 is a 3300 XL 11 mm Proximity Probe, designed for reliable eddy-current measurement of shaft vibration and position in critical rotating machinery. This probe 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 USA, this probe is engineered to meet the stringent requirements of industrial condition monitoring.

Technical Parameters

• Model: 330709-000-040-50-02-00
• Product 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 connector
• Cable: Standard cable
• Agency Approval: Not required
• Probe DC Resistance: 7.2 ± 0.8 ohms (center to outer conductor)
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Cable Specification: 75 Ω triaxial, FEP insulated
• Probe Case Torque: 63.3 N•m (560 in•lb) for M16x1.5
• Connector-to-Connector Torque: Finger tight (recommended), 0.565 N•m (5 in•lb) max
• Minimum Bend Radius: 25.4 mm (1.0 in)
• Operating/Storage Temperature: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 330709-000-040-50-02-00 is a 5-meter probe, specifically designed for use with a 5-meter Proximitor Sensor. The probe’s DC resistance is 7.2 ± 0.8 ohms, ensuring accurate signal transmission. The M16x1.5 thread allows secure mounting, with a maximum thread engagement length of 24 mm. The probe tip is made of PPS, offering excellent durability and temperature resistance. The case is constructed from AISI 304 stainless steel for corrosion resistance. The cable is a 75 Ω triaxial FEP-insulated type, providing high signal integrity. The operating temperature range is -52°C to +177°C, suitable for harsh industrial environments.

Application Scenarios

This proximity probe is widely used in condition monitoring of rotating machinery, including turbines, compressors, pumps, and other critical equipment. It measures shaft vibration and position relative to the bearing housing, enabling early detection of mechanical faults such as unbalance, misalignment, and bearing wear. The 3300 XL series is a standard for machinery protection and diagnostics in industries like power generation, oil and gas, and petrochemical.

Installation Guide

Install the probe with the recommended torque of 63.3 N•m (560 in•lb) for the M16x1.5 case. Ensure the target surface is flat and has a minimum diameter of 30.5 mm (1.2 in) for flat surfaces, or a shaft diameter of at least 152 mm (6.0 in). Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable. Connect the ClickLoc connector finger tight, then tighten to a maximum of 0.565 N•m (5 in•lb). Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal.

Compatibility

This probe is part of the Bently Nevada 3300 XL series and is compatible with 3300 XL Proximitor Sensors designed for 5-meter cable lengths. It is not compatible with other cable lengths unless using the appropriate Proximitor. The miniature coaxial ClickLoc connector ensures a secure connection to extension cables and Proximitors.

Maintenance Advice

Regularly inspect the probe cable and connector for damage. Clean the probe tip with a soft cloth to remove contaminants. Verify the probe DC resistance periodically to ensure it remains within 7.2 ± 0.8 ohms. Check the mounting torque to prevent loosening due to vibration. Store the probe within the specified temperature range when not in use.

Procurement Advice

When ordering the Bently Nevada 330709-000-040-50-02-00, confirm the total length requirement (5.0 meters) and the connector type (miniature coaxial ClickLoc). Ensure that the Proximitor sensor is matched to the 5-meter cable length. Verify the thread type (M16 x 1.5) matches your mounting requirements. For assistance, contact TenBN, an authorized channel for Bently Nevada products.

FAQ

Q: What is the total length of this probe?

A: The total length is 5.0 meters (16.4 feet).

Q: What is the probe DC resistance?

A: The DC resistance from the center conductor to the outer conductor is 7.2 ± 0.8 ohms.

Q: What is the operating temperature range?

A: The operating and storage temperature range is -52°C to +177°C (-62°F to +351°F).

Q: Can this probe be used with any Proximitor?

A: No, this 5-meter probe is designed for use with a 5-meter Proximitor Sensor only.

Q: What is the recommended torque for installation?

A: The recommended torque for the M16x1.5 probe case is 63.3 N•m (560 in•lb).