Bently Nevada 330709-000-040-50-02-05 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-040-50-02-05 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of radial vibration and axial position in rotating machinery. Manufactured in the U.S.A., 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. It is part of the 3300 XL series, known for enhanced linear range and improved accuracy. The 330709 model is engineered for use with the five-meter Proximitor Sensor, ensuring optimal performance in demanding industrial environments.

Technical Parameters

• Probe Length: 5.0 meters (16.4 feet)
• DC Resistance (RPROBE): 7.2 ± 0.8 ohms
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Cable Specification: 75 Ω triaxial, FEP insulated
• Probe Case Thread: M16 x 1.5
• Maximum Thread Engagement: 24 mm
• Recommended Torque: 21.1 N•m (187 in•lb)
• Maximum Torque: 63.3 N•m (560 in•lb)
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Agency Approvals: Multiple Approvals

Parameter Analysis

The 330709-000-040-50-02-05 offers a 5.0-meter cable length, which is specifically designed to match the five-meter Proximitor Sensor for accurate signal transmission. The probe’s DC resistance of 7.2 ± 0.8 ohms ensures consistent performance. The PPS tip provides durability and chemical resistance, while the stainless steel case offers robust mechanical protection. The M16 x 1.5 thread allows secure mounting, with a recommended torque of 21.1 N•m to prevent damage. The operating temperature range of -52°C to +177°C makes it suitable for extreme environments, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is ideal for monitoring vibration and position in critical rotating machinery such as turbines, compressors, pumps, and other industrial equipment. It is commonly used in power generation, oil and gas, petrochemical, and manufacturing plants where reliable condition monitoring is essential to prevent unplanned downtime.

Installation Guide

Install the probe with the recommended torque of 21.1 N•m (187 in•lb) for M16 x 1.5 threads. 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, with a maximum torque of 0.565 N•m (5 in•lb). Verify that the probe is compatible with the five-meter Proximitor Sensor.

Compatibility

The 330709-000-040-50-02-05 is designed for use with Bently Nevada 3300 XL series Proximitor Sensors, specifically the five-meter version. It is compatible with standard 3300 and 3500 monitoring systems. The miniature coaxial ClickLoc connector ensures secure and reliable connection.

Maintenance Advice

Regularly inspect the probe cable and connector for damage or wear. Clean the probe tip with a soft cloth and appropriate solvent if contamination occurs. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Check the mounting torque periodically to ensure proper installation.

Procurement Advice

When ordering the Bently Nevada 330709-000-040-50-02-05, verify the model number and specifications to ensure it matches your system requirements. Confirm the cable length and connector type are correct for your application. Purchase from authorized distributors like TenBN to guarantee genuine parts and technical support.

FAQ

Q1: What is the cable length of this probe?

A1: The cable length is 5.0 meters (16.4 feet), designed for use with the five-meter Proximitor Sensor.

Q2: What is the recommended torque for installation?

A2: The recommended torque for the M16 x 1.5 probe case is 21.1 N•m (187 in•lb).

Q3: What is the operating temperature range?

A3: The operating and storage temperature range is -52°C to +177°C (-62°F to +351°F).

Q4: Is this probe compatible with 3500 monitoring systems?

A4: Yes, it is compatible with standard 3300 and 3500 monitoring systems when used with the appropriate Proximitor.

Q5: What is the minimum target size?

A5: For a flat surface, the recommended minimum diameter is 30.5 mm (1.2 in); for shafts, the minimum diameter is 152 mm (6.0 in).