Bently Nevada 330709-016-240-50-02-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-016-240-50-02-00 is a 3300 XL 11 mm Proximity Probe, designed for eddy-current based vibration and position measurement. This model features a 16 mm unthreaded length, 240 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 part of the 3300 XL series, known for high performance and durability in industrial environments.

Technical Parameters

• Probe Type: 3300 XL 11 mm, M16 x 1.5 thread, without armor
• Unthreaded Length: 16 mm
• Overall Case Length: 240 mm
• Total Length: 5.0 meters (16.4 feet) – designed for use with five meter Proximitor Sensor only
• Connector: Miniature coaxial ClickLoc, 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: 75 ohm triaxial, FEP insulated
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Storage Temperature: -52°C to +105°C (-62°F to +221°F)
• Relative Humidity: 100% condensing, non-submersible (when connectors protected)
• Probe Case Torque: Recommended 21.1 N•m (187 in•lb), Maximum 63.3 N•m (560 in•lb)
• 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

Parameter Analysis

The 5.0 meter total length is specifically matched to the five meter Proximitor sensor, ensuring correct impedance and signal integrity. The probe’s DC resistance of 7.2 ± 0.8 ohms is within the specified tolerance for accurate eddy-current sensing. The PPS tip and stainless steel case provide robust mechanical and thermal performance. The probe is designed to seal differential pressure between tip and case, with a Viton O-ring, and is tested to IEC 68-2-3 damp heat.

Application Scenarios

This probe is ideal for vibration and position monitoring on turbines, compressors, pumps, and other rotating machinery. It is commonly used in critical machinery protection systems, where precise measurement of shaft vibration and axial position is essential for safe operation.

Installation Guide

Install the probe with the recommended torque of 21.1 N•m (187 in•lb) for the case. The connector should be 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. The probe must be used with a compatible Proximitor sensor (5 meter). Follow the manufacturer’s service manual for detailed installation procedures.

Compatibility

This probe is designed for use with Bently Nevada 3300 XL system components, specifically the five meter Proximitor sensor. It is compatible with 3300/3500 monitoring systems when used with the appropriate Proximitor and extension cable.

Maintenance Advice

Regularly inspect the probe and cable for damage. Keep connectors clean and protected from moisture. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Ensure the probe is not submersed in liquid.

Procurement Advice

When ordering, verify the exact model number 330709-016-240-50-02-00 to ensure correct specifications. Confirm that the total length (5.0 m) matches your Proximitor sensor. For applications requiring agency approvals, select the appropriate option. Contact TenBN for availability and lead times.

FAQ

What is the operating temperature range?

The probe operates from -52°C to +177°C (-62°F to +351°F).

What is the probe DC resistance?

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

Can this probe be used with any Proximitor?

No, this 5.0 meter probe is designed for use with the five meter Proximitor sensor only.

What is the recommended installation torque?

The recommended case torque is 21.1 N•m (187 in•lb).

Is the probe submersible?

No, it is non-submersible; connectors must be protected from moisture.