Bently Nevada 330709-000-080-50-11-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-080-50-11-00 is a 3300 XL 11 mm proximity probe, part of the 3300 series, designed for non-contact vibration and position measurement. Manufactured in the U.S.A., this probe features an M16 x 1.5 thread without armor, an overall case length of 80 mm, and a total length of 5.0 meters (16.4 feet). It is equipped with a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable. This model is intended for use with the five meter Proximitor Sensor only.

Technical Parameters

• Probe dc Resistance: 7.2 ± 0.8 ohms (center conductor to outer conductor)
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel (SST)
• Probe Cable: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated, total length 5 meters
• Probe Case Thread: M16 x 1.5
• Maximum Length of Thread Engagement: 24 mm
• Probe Case Torque: Recommended 21.1 N•m (187 in•lb), Maximum 63.3 N•m (560 in•lb)
• Connector-to-Connector Torque: Recommended finger tight, Maximum 0.565 N•m (5 in•lb)
• Minimum Bend Radius: 25.4 mm (1.0 in)
• Operating and Storage Temperature: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 330709-000-080-50-11-00 probe length of 5.0 meters is optimized for use with a matching 5-meter Proximitor sensor, ensuring accurate signal transmission. The probe’s dc resistance of 7.2 ± 0.8 ohms is within the specified tolerance for reliable performance. The PPS tip provides durability and consistent sensing characteristics. The stainless steel case offers corrosion resistance in industrial environments. The temperature range allows operation in harsh conditions, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is ideal for monitoring vibration and position in rotating machinery such as turbines, compressors, pumps, and other critical equipment. It is commonly used in applications requiring precise shaft vibration and axial position monitoring to prevent machinery damage and optimize maintenance schedules.

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 thread engagement does not exceed 24 mm. The connector should be tightened finger tight, with a maximum torque of 0.565 N•m (5 in•lb). Maintain a minimum bend radius of 25.4 mm for the cable. For optimal performance, the target surface should be at least 30.5 mm in diameter (flat surface) or the shaft diameter should be at least 152 mm.

Compatibility

This probe is designed for use with Bently Nevada 3300 XL systems and specifically with the five meter Proximitor Sensor. It is part of the 3300 series, which includes models 330703, 330704, 330705, and 330709. Verify compatibility with your existing monitoring system before installation.

Maintenance Advice

Regularly inspect the probe tip and cable for damage or wear. Ensure the connector is properly tightened and protected. Avoid exposing the probe to temperatures below -34°C to prevent premature failure of the pressure seal. Clean the probe tip with a soft cloth if contamination occurs.

Procurement Advice

When ordering the Bently Nevada 330709-000-080-50-11-00, confirm the total length (5.0 meters) and connector type (miniature coaxial ClickLoc) to ensure it matches your system requirements. Purchase from authorized distributors to guarantee genuine parts and warranty support.

FAQ

What is the total length of this probe?

The total length is 5.0 meters (16.4 feet).

Can this probe be used with any Proximitor?

No, it is designed for use with the five meter Proximitor Sensor only.

What is the recommended installation torque?

For the M16 x 1.5 case, the recommended torque is 21.1 N•m (187 in•lb).

What is the operating temperature range?

The operating and storage temperature range is -52°C to +177°C.

Is this probe approved for hazardous areas?

Agency approval option is ’00’ meaning not required, so it may not have specific hazardous area certifications.