The Bently Nevada 330105-02-12-05-02-05-BR is a reverse mount, non-contact proximity probe from the 3300 XL 8 mm series. It is designed for measuring vibration and position in rotating machinery with fluid-film bearings. This probe is especially suited for limited mounting spaces and applications requiring a reverse installation configuration.

Technical Specifications

Applications

• Radial vibration monitoring of turbines and compressors

• Shaft position monitoring in rotating machinery

• Keyphasor speed and phase reference detection

• Ideal for confined spaces requiring reverse mounting

• Suitable for API 670 compliant systems

Key Advantages

• Reverse Mount Design: Ideal for limited-access installations

• Robust Construction: High-strength cable retention (up to 330 N pull strength)

• ClickLoc Connectors: Secure, tool-free connections

• FluidLoc Option: Prevents oil migration through cables (optional)

• Temperature Resilience: Operates up to 177°C with standard configuration

• No Calibration Required: Fully interchangeable with other 3300 XL components

• API 670 Compliant: Meets industry vibration monitoring standards

Frequently Asked Questions (FAQ)

Q1: What does the “reverse mount” mean in this probe?

A1: It allows installation from the back side of the mounting surface, useful in tight spaces.

Q2: Can I use this probe in high-temperature environments?

A2: Yes, up to 177°C with the standard cable; extended temperature versions go higher.

Q3: Is the probe compatible with older Bently 3300 series systems?

A3: Yes, it’s backward compatible with non-XL 3300 5 mm and 8 mm systems.

Q4: Is the probe suitable for underwater or oil-submerged installations?

A4: Yes, when properly sealed and with appropriate FluidLoc cable if needed.

Q5: What materials are used in the probe tip and body?

A5: The tip is PPS plastic; the body is stainless steel (AISI 303/304).

Q6: What is the maximum cable length I can order?

A6: Up to 9.0 meters; this model comes with 0.5 meter.

Q7: How does the ClickLoc connector work?

A7: It provides a secure connection that locks in place with a “click,” no tools needed.

Q8: Can I mix this probe with older non-XL extension cables?

A8: Yes, but the system performance will default to the lower-rated component.

Q9: What is the output voltage range?

A9: Output varies linearly from -1 to -17 Vdc over the 2 mm linear range.

Q10: Does it require field calibration?

A10: No, it comes factory calibrated for AISI 4140 steel and requires no bench calibration.