Bently Nevada 330105-20-12-10-02-00 3300 XL Proximity Probe

Product Overview

The Bently Nevada 330105-20-12-10-02-00 is a 3300 XL 8 mm reverse mount proximity probe for critical machinery monitoring.
It delivers accurate, repeatable shaft vibration and displacement measurements in demanding industrial rotating equipment environments.
Moreover, the reverse mount design simplifies installation where front-access mounting is mechanically restricted or unavailable.
This probe integrates seamlessly with the 3300 XL transducer system, ensuring consistent performance across protection and monitoring applications.

Key Features and Benefits

Reverse mount construction supports compact machinery layouts while maintaining precise probe-to-target alignment during operation.
In addition, the armored coaxial cable provides long-term reliability under vibration, abrasion, and continuous mechanical stress.
The miniature ClickLoc connector improves signal integrity and prevents accidental disconnection during maintenance activities.
Therefore, maintenance teams benefit from reduced installation errors and improved long-term system stability.

Technical Specifications

Model: 330105-20-12-10-02-00
Series: Bently Nevada 3300 XL
Probe Type: 8 mm Reverse Mount Proximity Probe
Thread Type: 3/8-24 UNF-2A
Case Length: 1.2 inches (30.5 mm)
Overall Probe Length: 2.0 inches (50.8 mm)
Cable Length: 1.0 meter
Connector Type: Miniature coaxial ClickLoc
Target Material: AISI 4140 steel standard
Linear Measurement Range: 2.0 mm (80 mils)
Usable Range Start: Approximately 0.25 mm from probe face
Incremental Scale Factor: 7.87 V/mm (200 mV/mil) ±5%
Frequency Response: 0 to 10 kHz, +0 / -3 dB
Operating Temperature: -52 °C to +177 °C
Pressure Rating: Up to 700 kPa between probe tip and case
Probe Tip Material: Polyphenylene sulfide (PPS)

System Integration and Applications

This probe must operate with a matched 3300 XL extension cable and compatible 3300 XL Proximitor sensor.
For instance, it supports standard 5 m or 9 m total system lengths when properly configured.
Typical applications include steam turbines, centrifugal compressors, large pumps, and motor-driven process equipment.
Moreover, it is widely used in API 670 compliant machinery protection and condition monitoring systems.

Reliability, Support, and Maintenance

Bently Nevada designs the 330105 probe for continuous operation in high-vibration industrial environments worldwide.
Therefore, users experience consistent signal stability across extended service intervals and harsh operating conditions.
Routine inspection focuses on cable integrity, connector condition, and correct probe gap verification.
In addition, global technical support and long-term product availability simplify lifecycle management for plant operators.

FAQ

Q: What makes the 330105 reverse mount probe different from standard front-mount probes?
A: The reverse mount design allows installation from behind the mounting surface in space-constrained machinery housings.

Q: Can this probe work with 3300 XL 11 mm systems?
A: No, this model is calibrated exclusively for 8 mm 3300 XL Proximitor sensors.

Q: Is this probe suitable for high-temperature applications?
A: Yes, it operates reliably up to 177 °C when installed according to Bently Nevada guidelines.

Q: Does the probe require special target materials?
A: It is calibrated for AISI 4140 steel, while other materials require scale factor adjustment.