Bently Nevada 330851-04-000-020-10-00-00 3300 XL 25 mm Proximity Probe

The Bently Nevada 330851-04-000-020-10-00-00 3300 XL 25 mm Proximity Probe is a high-performance probe designed for non-contact measurement of shaft vibration and displacement in rotating machinery. Engineered for demanding industrial environments, this probe delivers accurate, stable, and reliable measurements over extended operating ranges.

It is part of the 3300 XL series, which is known for its extended linear measurement range, robust design, and compatibility with Bently Nevada’s monitoring systems. The 3300 XL 25 mm probe is widely deployed in turbines, compressors, motors, and other critical rotating equipment where precision condition monitoring is essential.

Product Parameters

Product Applications

• Power Generation – monitoring turbine shafts in gas, steam, and hydro power plants.

• Oil & Gas – applied in compressors, pumps, and motors for predictive maintenance.

• Petrochemical – condition monitoring in refineries and chemical processing plants.

• Industrial Machinery – motors, gearboxes, and fans requiring shaft vibration detection.

• Aerospace & Marine – high-reliability monitoring in propulsion and auxiliary systems.

Product Advantages

• Extended Linear Range – 25 mm range supports accurate measurements across a wider shaft displacement window.

• High Accuracy and Stability – excellent immunity to temperature changes and electrical noise.

• Rugged Construction – robust probe tip and cable design suitable for harsh environments.

• System Compatibility – integrates seamlessly with Bently Nevada 3300 XL monitoring systems and Proximitor sensors.

• Long-term Reliability – proven durability for continuous monitoring in critical assets.

• Ease of Installation – flexible cable routing and probe mount options reduce installation time.

FAQ

Q1: What is the operating principle of the 3300 XL 25 mm probe?

A1: It uses the eddy current principle, generating a signal proportional to the distance between the probe tip and the conductive shaft surface.

Q2: Can this probe detect both static and dynamic shaft movements?

A2: Yes, it measures static shaft position (displacement) and dynamic vibration simultaneously.

Q3: How does the probe maintain accuracy in high-temperature environments?

A3: The design incorporates temperature-compensated electronics and robust materials to ensure stable output.

Q4: What type of cable is used with this probe?

A4: It uses a durable coaxial cable with integrated shielding to minimize signal interference.

Q5: Is this probe interchangeable with other 3300 XL series probes?

A5: Yes, but calibration and driver compatibility must be confirmed to ensure system accuracy.

Q6: What is the frequency response capability of this probe?

A6: It supports frequency response up to 10 kHz, making it suitable for most machinery vibration monitoring.

Q7: Can it be used for thrust position monitoring?

A7: Yes, the probe is designed for both radial vibration and axial (thrust) position measurements.

Q8: How is the probe calibrated?

A8: Calibration is performed using Bently Nevada Proximitor drivers to match probe characteristics.

Q9: Does the probe support long cable extensions?

A9: Yes, but only with specific matched cable lengths as per Bently Nevada’s specifications to maintain accuracy.

Q10: What is the typical installation distance (gap) from the shaft surface?

A10: The probe is typically installed with a nominal gap of 2 mm, but exact values depend on shaft material and driver settings.