Bently Nevada 330709-000-230-50-02-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-230-50-02-00 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of shaft vibration and position in critical rotating machinery. This probe features an M16 x 1.5 thread, a 230 mm overall case length, and a 5.0-meter cable with a miniature coaxial ClickLoc connector. Manufactured in the U.S.A., it is part of the 3300 XL series known for enhanced linear range and improved accuracy.

Technical Parameters

• Model: 330709-000-230-50-02-00
• Probe Type: 3300 XL 11 mm Proximity Probe, M16 x 1.5 thread, without armor
• Unthreaded Length: 0 mm
• Overall Case Length: 230 mm
• Total Length: 5.0 meters (16.4 feet)
• Connector: Miniature coaxial ClickLoc, standard cable
• Agency Approval: Not required
• Probe DC Resistance: 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 Torque: Recommended 21.1 N•m (187 in•lb), Maximum 63.3 N•m (560 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)
• Thread: M16 x 1.5, max engagement 24 mm
• Temperature Range: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 330709-000-230-50-02-00 is a 5-meter probe designed for use with the 5-meter Proximitor Sensor only. The probe’s DC resistance is 7.2 ± 0.8 ohms, ensuring proper signal integrity. The 11 mm diameter provides a linear measurement range suitable for most rotating machinery applications. The PPS tip and stainless steel case offer durability in harsh environments. The operating temperature range of -52°C to +177°C makes it suitable for extreme conditions, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is ideal for vibration and position monitoring on turbines, compressors, pumps, and other rotating machinery. It is commonly used in applications requiring precise shaft radial vibration measurement, axial position, and eccentricity monitoring. The 5-meter cable length is suited for installations where the probe is mounted close to the machine and connected to a Proximitor sensor.

Installation Guide

Install the probe with the recommended torque of 21.1 N•m (187 in•lb) for the M16 x 1.5 case. Ensure the target surface meets the recommended minimum sizes: flat surface diameter of 30.5 mm (1.2 in) and shaft diameter of 152 mm (6.0 in) to avoid cross-talk limitations. Maintain a minimum bend radius of 25.4 mm for the cable. Connect the ClickLoc connector finger tight, then tighten to a maximum of 0.565 N•m (5 in•lb).

Compatibility

The 330709-000-230-50-02-00 is compatible with Bently Nevada 3300 XL Proximitor sensors, specifically the 5-meter versions. It is designed for use with the 3300 XL system and is not directly compatible with other Proximitor lengths. The miniature coaxial ClickLoc connector ensures a secure connection with matching extension cables.

Maintenance Advice

Regularly inspect the probe cable and connector for damage. Keep the probe tip clean and free of debris. Avoid exposing the probe to temperatures below -34°C to prevent premature failure of the pressure seal. Periodically verify the probe resistance (7.2 ± 0.8 ohms) using an ohmmeter to ensure proper operation.

Procurement Advice

When ordering the Bently Nevada 330709-000-230-50-02-00, confirm that your system requires a 5-meter probe and a 5-meter Proximitor. Verify the thread size (M16 x 1.5) and overall case length (230 mm) match your installation requirements. Ensure the connector type (miniature coaxial ClickLoc) is compatible with your existing cabling. Purchase from authorized distributors to guarantee genuine parts and warranty support.

FAQ

1. What is the total length of the probe?

The total length is 5.0 meters (16.4 feet), including the cable.

2. What is the probe’s DC resistance?

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

3. Can this probe be used with a 1-meter or 9-meter Proximitor?

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

4. What is the maximum torque for the probe case?

The maximum rated torque is 63.3 N•m (560 in•lb), but the recommended torque is 21.1 N•m (187 in•lb).

5. What is the operating temperature range?

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