Bently Nevada 330709-000-230-90-01-05 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-230-90-01-05 is a high-performance 3300 XL 11 mm proximity probe designed for accurate measurement of shaft vibration and position in critical rotating machinery. Manufactured in the U.S.A., this probe features an M16 x 1.5 thread, a 230 mm overall case length, and a 9.0-meter (29.5 feet) total length. It is equipped with a miniature coaxial ClickLoc connector with connector protector and standard cable, ensuring secure and reliable connections. The probe is part of the 3300 XL series, renowned for its advanced eddy-current technology and exceptional linearity, making it ideal for machinery protection and condition monitoring applications.

Technical Parameters

• Model: 330709-000-230-90-01-05
• Probe Type: 3300 XL 11 mm Proximity Probe
• Thread Size: M16 x 1.5
• Unthreaded Length: 0 mm
• Overall Case Length: 230 mm
• Total Length: 9.0 meters (29.5 feet)
• Connector: Miniature coaxial ClickLoc with connector protector
• Cable Type: Standard, 75 Ω triaxial, FEP insulated
• Probe DC Resistance: 8.5 ± 1.1 ohms (center to outer conductor)
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Temperature Range: -52°C to +177°C (operating and storage)
• Agency Approvals: Multiple Approvals

Parameter Analysis

The 330709-000-230-90-01-05 is engineered for high accuracy and stability. The 11 mm probe diameter provides a linear measurement range suitable for most industrial applications. The 9.0-meter cable length offers flexibility in installation, while the M16 x 1.5 thread ensures robust mounting. The probe’s DC resistance of 8.5 ± 1.1 ohms is within the specified tolerance, ensuring consistent performance. The recommended minimum target size (flat surface) is 30.5 mm (1.2 in) and minimum shaft diameter is 152 mm (6.0 in), which must be considered for optimal operation. The probe case torque is recommended at 21.1 N•m (187 in•lb), and the connector-to-connector torque is finger tight (maximum 0.565 N•m). The minimum bend radius is 25.4 mm (1.0 in).

Application Scenarios

This proximity probe is widely used for vibration and position monitoring in rotating machinery such as turbines, compressors, pumps, and other critical equipment. It is particularly suited for applications requiring precise shaft displacement measurements, including radial vibration, axial position, and speed/phase reference. The 3300 XL series is a standard in the industry for machinery protection systems, providing reliable data for predictive maintenance and avoiding unplanned downtime.

Installation Guide

Proper installation is crucial for accurate readings. Ensure the probe is mounted with the recommended torque of 21.1 N•m (187 in•lb) for M16x1.5 cases. The maximum thread engagement is 24 mm. Avoid bending the cable beyond the minimum bend radius of 25.4 mm (1.0 in). The connector should be finger tight, with a maximum torque of 0.565 N•m (5 in•lb). Verify that the target surface meets the minimum size requirements and that the probe gap is set according to the system’s calibration. Refer to the service manual for detailed installation procedures.

Compatibility

The 330709-000-230-90-01-05 is compatible with Bently Nevada 3300 XL systems, including 3300/3500 monitoring racks and associated proximitors. It works with standard extension cables and is designed for use with 3300 XL 11 mm proximity transducers. The probe’s connector type (miniature coaxial ClickLoc) ensures compatibility with corresponding extension cables and proximitors.

Maintenance Advice

Regular inspection of the probe and cable is recommended to ensure reliable operation. Check for any physical damage, such as cuts or abrasions on the cable, and ensure connectors are clean and properly seated. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Periodic calibration checks are advised to maintain measurement accuracy.

Procurement Advice

When purchasing the Bently Nevada 330709-000-230-90-01-05, verify the model number and specifications to ensure it meets your application requirements. Consider the total length and connector type to match your existing system. For critical applications, it is advisable to keep a spare probe in inventory to minimize downtime. Always source from authorized distributors to guarantee genuine parts and warranty support.

FAQ

What is the operating temperature range of this probe?

The probe can operate and be stored in temperatures from -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.

What is the recommended torque for installing the probe?

The recommended torque for M16x1.5 probe cases is 21.1 N•m (187 in•lb). The maximum rated torque is 63.3 N•m (560 in•lb).

Can this probe be used with 3500 monitoring systems?

Yes, the 3300 XL 11 mm probe is compatible with Bently Nevada 3500 monitoring systems when used with appropriate proximitors and extension cables.

What is the minimum target size for accurate measurement?

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

What is the probe’s DC resistance?

The DC resistance from the center conductor to the outer conductor is 8.5 ± 1.1 ohms for a 9.0-meter probe length.