Bently Nevada 330709-000-070-50-01-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-070-50-01-00 is a 3300 XL 11 mm proximity probe designed for accurate measurement of radial vibration and axial position in rotating machinery. This model features an M16 x 1.5 thread, a 70 mm overall case length, and a 5.0 meter cable with a miniature coaxial ClickLoc connector. It is manufactured in the U.S.A. and is intended for use with the five meter Proximitor Sensor only.

Technical Parameters

• Model: 330709-000-070-50-01-00
• Thread: M16 x 1.5
• Unthreaded Length: 0 mm
• Overall Case Length: 70 mm
• Total Length: 5.0 meters (16.4 feet)
• Connector: Miniature coaxial ClickLoc with connector protector
• Cable: Standard, 75 ohm triaxial, FEP insulated
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Probe DC Resistance: 7.2 ± 0.8 ohms
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 5.0 meter total length is specifically designed to match the five meter Proximitor Sensor, ensuring optimal signal integrity. The probe’s DC resistance of 7.2 ± 0.8 ohms is within the specified range for reliable operation. The M16 x 1.5 thread allows for standard mounting, with a maximum thread engagement of 24 mm. The probe is rated for a maximum case torque of 63.3 N•m (560 in•lb) and recommended torque of 21.1 N•m (187 in•lb). The connector-to-connector torque is finger tight, with a maximum of 0.565 N•m (5 in•lb). The minimum bend radius is 25.4 mm (1.0 in).

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 applications requiring precise measurement of shaft vibration and axial displacement to prevent machinery damage and ensure operational safety.

Installation Guide

Install the probe using the M16 x 1.5 thread, ensuring the thread engagement does not exceed 24 mm. Apply the recommended torque of 21.1 N•m (187 in•lb) for the probe case. The connector should be tightened finger tight, with a maximum torque of 0.565 N•m (5 in•lb). Ensure the cable bend radius is at least 25.4 mm (1.0 in) to avoid damage. The probe is designed for use with the five meter Proximitor Sensor; do not use with other lengths.

Compatibility

This probe is part of the 3300 XL series and is compatible with Bently Nevada 3300 XL Proximitor Sensors that are designed for 5.0 meter cable lengths. It is not compatible with sensors for other cable lengths.

Maintenance Advice

Regularly inspect the probe tip and cable for damage. Keep the probe tip clean and free of debris. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Check connector tightness periodically to ensure proper connection.

Procurement Advice

When ordering the Bently Nevada 330709-000-070-50-01-00, verify that the total length (5.0 meters) matches your Proximitor Sensor requirements. Ensure that the thread type (M16 x 1.5) is suitable for your mounting configuration. Consider purchasing from authorized distributors to guarantee genuine parts and technical support.

FAQ

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). However, exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal.

Q: What is the probe’s DC resistance?

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

Q: Can this probe be used with a 1-meter or 9-meter Proximitor?

A: No, this probe is designed for use with the five meter Proximitor Sensor only.

Q: What is the recommended mounting torque?

A: The recommended torque for the probe case is 21.1 N•m (187 in•lb), with a maximum of 63.3 N•m (560 in•lb).

Q: What is the minimum target size?

A: For a flat surface, the recommended minimum target diameter is 30.5 mm (1.2 in). For a shaft, the recommended minimum diameter is 152 mm (6.0 in).