Bently Nevada 330709-000-080-90-02-05 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-080-90-02-05 is a 3300 XL 11 mm Proximity Probe, designed for high-performance eddy-current vibration and position measurements on rotating machinery. This probe features an M16 x 1.5 thread, a 0 mm unthreaded length, an 80 mm overall case length, and a 9.0-meter (29.5 feet) standard cable with a miniature coaxial ClickLoc connector. It is manufactured in the U.S.A. and carries multiple agency approvals, ensuring compliance with international standards.

Technical Parameters

• Probe DC Resistance (RPROBE): 8.5 ± 1.1 ohms (for 9.0 m length)
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Probe Cable: 75 Ω triaxial, FEP insulated, available in 1, 5, or 9 meters
• Probe Case Thread: M16 x 1.5, max thread engagement 24 mm
• Recommended Probe Case Torque: 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)
• Operating and Storage Temperature: -52°C to +177°C (-62°F to +351°F)
• Temperature Classifications: T1 to T5 for EPL Ga/Gc and T280°C to T90°C for EPL Dc

Parameter Analysis

The 330709-000-080-90-02-05 probe offers a linear output over a typical measurement range of 2 mm to 4 mm (depending on system calibration). The 9.0-meter cable length provides flexibility for installations where the proximitor is mounted remotely. The probe’s DC resistance of 8.5 ± 1.1 ohms ensures consistent performance with compatible 3300 XL systems. The PPS tip and stainless steel case provide durability in harsh environments, while the multiple approvals (including ATEX, IECEx, etc.) allow use in hazardous areas.

Application Scenarios

This proximity probe is ideal for monitoring radial and axial shaft vibration, thrust position, and eccentricity in critical rotating machinery such as turbines, compressors, pumps, and generators. It is commonly used in power generation, oil & gas, petrochemical, and other process industries where reliable condition monitoring is essential to prevent unplanned downtime.

Installation Guide

1. Mount the probe into a suitable mounting hole with M16 x 1.5 thread. Ensure the thread engagement does not exceed 24 mm.
2. Tighten the probe case to the recommended torque of 21.1 N•m (187 in•lb). Do not exceed the maximum rated torque of 63.3 N•m.
3. Connect the miniature coaxial ClickLoc connector to the extension cable or proximitor. Tighten only finger tight (max 0.565 N•m).
4. Route the cable with a minimum bend radius of 25.4 mm to avoid damage.
5. Verify the gap (static target distance) according to the system calibration to ensure proper operating point.

Compatibility

The 330709-000-080-90-02-05 is designed for use with Bently Nevada 3300 XL systems, including 3300/3500 monitors and compatible proximitors (e.g., 3300 XL 8 mm and 11 mm systems). It is not compatible with older 3300 series without proper adapters. Always confirm system compatibility before installation.

Maintenance Advice

• Periodically inspect the probe tip and cable for damage or wear.
• Keep the probe tip clean; contamination can affect measurement accuracy.
• Check connector tightness regularly, but do not over-tighten.
• If the probe is exposed to temperatures below -34°C, be aware of potential premature failure of the pressure seal.

Procurement Advice

When ordering, verify the model number 330709-000-080-90-02-05 to ensure it matches your requirements. Consider the total length (9.0 m) and connector type (miniature coaxial ClickLoc) for your installation. For hazardous areas, confirm the required agency approval (multiple approvals included). Purchase from authorized distributors like TenBN to guarantee genuine parts and technical support.

FAQ

Q: What is the measurement range of this probe?

A: The 3300 XL 11 mm probe typically provides a linear range of about 2 mm to 4 mm, but the exact range depends on the target material and system calibration.

Q: Can this probe be used in hazardous areas?

A: Yes, the probe has multiple approvals (option 05) and is rated for use in explosive atmospheres according to the temperature classifications listed.

Q: What is the maximum cable length?

A: This specific model has a total length of 9.0 meters (29.5 feet). Other cable lengths are available in the 330709 series.

Q: What is the recommended torque for installation?

A: The recommended probe case torque is 21.1 N•m (187 in•lb). Do not exceed the maximum rated torque of 63.3 N•m.

Q: Is the probe tip replaceable?

A: The probe tip is not field-replaceable; the entire probe must be replaced if damaged.