Bently Nevada 330709-000-080-90-01-05 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-080-90-01-05 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of radial vibration and axial position in rotating machinery. This model features a 9.0-meter (29.5 feet) cable, a miniature coaxial ClickLoc connector with connector protector, and multiple agency approvals. Manufactured in the U.S.A., this probe is part of the 3300 XL series, known for its durability and accuracy in harsh industrial environments.

Technical Parameters

• Probe Length: 9.0 meters (29.5 feet)
• Probe DC Resistance (RPROBE): 8.5 ± 1.1 ohms
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel (SST)
• Cable Specification: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated
• Thread Size: M16 x 1.5
• Maximum Thread Engagement: 24 mm
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Probe Case Torque (Recommended): 21.1 N•m (187 in•lb)
• Connector-to-Connector Torque: Finger tight (max 0.565 N•m)
• Minimum Bend Radius: 25.4 mm (1.0 in)

Parameter Analysis

The model number 330709-000-080-90-01-05 decodes as follows: ‘330709’ indicates a 3300 XL 11 mm probe with M16 x 1.5 thread without armor; ‘000’ means 0 mm unthreaded length; ‘080’ indicates an 80 mm overall case length; ’90’ represents a 9.0-meter total length; ’01’ specifies a miniature coaxial ClickLoc connector with connector protector and standard cable; ’05’ denotes multiple approvals. The probe’s DC resistance is 8.5 ± 1.1 ohms, ensuring consistent performance with compatible proximitors. The recommended minimum target flat surface diameter is 30.5 mm (1.2 in), and the recommended minimum shaft diameter is 152 mm (6.0 in) to avoid cross-talk limitations.

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 reliable, continuous monitoring to prevent machine damage and unplanned downtime.

Installation Guide

Install the probe into a properly tapped hole with M16 x 1.5 thread. Ensure the thread engagement does not exceed 24 mm. Apply the recommended torque of 21.1 N•m (187 in•lb) for the probe case. For the connector, tighten finger tight only, with a maximum torque of 0.565 N•m (5 in•lb). Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable to avoid damage. Follow the manufacturer’s guidelines for proper gap and mounting position.

Compatibility

The 330709-000-080-90-01-05 probe is compatible with Bently Nevada 3300 XL series monitoring systems, including 3300/3500 racks and associated proximitors. It is designed to work with standard Bently Nevada extension cables and connectors. Always verify compatibility with your specific monitoring system before installation.

Maintenance Advice

Regularly inspect the probe and cable for signs of wear, damage, or contamination. Keep the probe tip clean and free of debris. Ensure the connector is properly seated and not over-torqued. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Periodically check the DC resistance to ensure it remains within specification.

Procurement Advice

When purchasing the Bently Nevada 330709-000-080-90-01-05, verify the part number matches your requirements, especially the cable length and connector type. Consider ordering spare probes to minimize downtime. Purchase from authorized distributors to ensure genuine parts and warranty support.

FAQ

What is the operating temperature range?

The probe can operate and be stored in temperatures from -52°C to +177°C (-62°F to +351°F). However, avoid temperatures below -34°C (-30°F) to prevent pressure seal failure.

What is the recommended torque for installation?

The recommended torque for the probe case is 21.1 N•m (187 in•lb). The connector should be tightened finger tight only, with a maximum torque of 0.565 N•m (5 in•lb).

What is the probe’s DC resistance?

The DC resistance from the center conductor to the outer conductor is 8.5 ± 1.1 ohms.

Can this probe be used with 3500 series monitoring systems?

Yes, it is compatible with Bently Nevada 3300 XL and 3500 series systems, but always confirm compatibility with your specific rack and proximitor.

What is the minimum shaft diameter for cross-talk limitation?

The recommended minimum shaft diameter is 152 mm (6.0 inches) to avoid cross-talk limitations.