The Bently Nevada 330881-28-04-110-03-02 PROXPAC XL Proximity Sensor is a highly reliable and precise device used for non-contact measurement of shaft vibration, position, and displacement in rotating machinery. This sensor belongs to the PROXPAC XL series, which is widely recognized for its robust design, accurate signal conditioning, and long-term stability in industrial applications.

It is designed to work seamlessly with Bently Nevada monitoring systems, providing critical input signals for protection and condition monitoring of turbines, compressors, pumps, and other critical rotating assets.

Technical Specifications

Product Applications

• Steam and gas turbines – monitoring shaft vibration and position to protect against mechanical damage.

• Compressors and pumps – ensuring reliability by tracking shaft displacement and detecting misalignment or imbalance.

• Generators and motors – providing early warning signals for bearing wear or rotor instability.

• Industrial fans and blowers – monitoring performance under high dynamic load conditions.

• Critical process equipment – ensuring safety, stability, and compliance with API 670 requirements.

Product Advantages

• High Accuracy: Provides precise non-contact measurements, ensuring reliable protection and monitoring.

• Robust Construction: Engineered to withstand harsh industrial environments with excellent temperature tolerance.

• Seamless Compatibility: Fully compatible with Bently Nevada 3300 and 3500 monitoring systems.

• Wide Application Range: Suitable for turbines, compressors, pumps, and other rotating machinery.

• Stable Output: Delivers consistent signal quality with low noise interference.

• Proven Reliability: Trusted in critical industries including oil & gas, power generation, and petrochemicals.

FAQ

Q1: What is the frequency response range of this sensor?

A1: The sensor provides a frequency response from DC up to 10 kHz, suitable for detecting both low- and high-frequency vibration.

Q2: Which monitoring systems is this sensor compatible with?

A2: It is designed to work seamlessly with Bently Nevada 3300 and 3500 machinery monitoring systems.

Q3: What type of signal output does the sensor provide?

A3: It provides a proportional voltage output corresponding to shaft vibration or displacement.

Q4: Can this sensor operate in high-temperature environments?

A4: Yes, it supports an operating temperature range of -35 °C to +100 °C.

Q5: What is the standard sensitivity calibration of the sensor?

A5: The sensor has a sensitivity of 200 mV/mil (7.87 mV/µm).

Q6: Is it suitable for API 670 compliance applications?

A6: Yes, it fully meets API 670 requirements for machinery protection systems.

Q7: What is the typical application in rotating machinery?

A7: It is typically used for shaft vibration monitoring, shaft position detection, and displacement measurement.

Q8: How is the sensor typically mounted?

A8: The sensor is designed for panel or rack mounting, depending on the system configuration.

Q9: Does it require a specific power supply?

A9: Yes, it requires a -24 VDC nominal power supply for operation.

Q10: What probe size does it support?

A10: The sensor works with an 8 mm probe tip for optimal signal detection.