The Bently Nevada 330103-02-08-90-01-00 3300 XL 8mm Proximity Probe is a precision-engineered sensor designed for accurate measurement of shaft vibration and displacement in critical rotating machinery. As part of the 3300 XL series, this probe is optimized for long-distance installations, providing high-fidelity measurements for machinery protection, predictive maintenance, and operational reliability.

This probe utilizes eddy current technology to convert the gap between the probe tip and the rotating shaft into a reliable electrical signal. With a total length of 9 meters and a weight of 2.907 kg, it is ideal for installations where the monitoring module is located remotely from the machinery. The stainless steel housing ensures durability against vibration, shock, and corrosion, making it suitable for harsh industrial environments. The probe is fully compatible with Proximitor sensors and 3300 XL monitoring systems, delivering precise data for early fault detection and comprehensive machinery health monitoring.

Product Specifications

Applications

The 330103-02-08-90-01-00 probe is designed for long-distance installations in critical industrial machinery monitoring. Its primary applications include:

• Monitoring radial vibration in turbines, compressors, pumps, and motors.

• Measuring axial shaft displacement for detection of misalignment or mechanical overload.

• Providing reliable signals for predictive maintenance and early fault detection.

• Integration into machinery protection systems in power generation, petrochemical, and oil & gas facilities.

• Long-distance sensor installations where cable lengths of 9 meters are required to connect to remote monitoring modules.

• Detection of mechanical issues such as imbalance, looseness, and bearing wear.

Advantages

• High Measurement Accuracy: Provides precise and repeatable readings of vibration and displacement.

• Long Cable Length: 9-meter cable supports flexible installation and remote monitoring.

• Durable Construction: Stainless steel housing ensures resistance to corrosion, vibration, and shock.

• Thermal Stability: Operates reliably across a temperature range of –35 °C to +180 °C.

• API 670 Compliance: Meets international machinery protection standards.

• System Compatibility: Fully compatible with 3300 XL Proximitor sensors and monitoring modules.

• Electromagnetic Noise Immunity: Shielded cable minimizes interference for accurate signal transmission.

• Interchangeable Design: Can replace other 3300 XL 8mm probes without recalibration.

FAQ

1. What sensing principle does this probe use?

It operates using eddy current technology to measure the distance between the probe tip and the shaft surface.

2. What is the linear measurement range?

The probe provides a typical linear range of 2 mm when paired with a matching Proximitor sensor.

3. How does the 9-meter cable affect signal integrity?

The probe and cable are factory-matched to maintain calibration and signal accuracy over the entire 9-meter length.

4. Can it measure both radial and axial shaft movement?

Yes, installation orientation determines whether it monitors radial vibration or axial displacement.

5. What type of electrical output does the probe provide?

It produces a voltage signal proportional to shaft displacement.

6. How does it handle electromagnetic interference?

The shielded cable reduces EMI and ensures accurate signal transmission even in electrically noisy environments.

7. Is it suitable for high-vibration environments?

Yes, it operates reliably under vibration levels up to 10 g across 10–2000 Hz.

8. What is the operating temperature range?

It operates reliably from –35 °C to +180 °C.

9. Can it be used with legacy Bently Nevada systems?

Yes, it is compatible with both 3300 and 3500 series monitoring modules.

10. What industry standards does this probe comply with?

It meets API 670 standards for vibration and displacement monitoring in rotating machinery.