General Information

Core Description

The 330105-XX-XX-10-02-CN MOD 165931-01 is a Bently Nevada 3300 XL 8mm reverse-mount proximity probe engineered with a rugged stainless steel armor sleeve and a customized MOD 165931-01 mechanical configuration profile. Fully compatible with 3300 XL Proximitor sensors, this 1.0-meter leading cable unit works seamlessly inside critical industrial assets to deliver reliable non-contact shaft displacement tracking and stable communication in harsh plant environments.

Competitive Advantage

• The specialized MOD 165931-01 design profile provides a highly tailored mechanical configuration built specifically to resolve unique target casing geometry hurdles where standard out-of-the-box catalog dimensions fail to fit.
• It features patented TipLoc molding and CableLoc engineering that provides a massive 330 N (75 lbf) pull strength barrier between the probe tip and lead, completely eliminating catastrophic shear failure risks under aggressive machine stresses.
• Outfitted with a premium flexible stainless steel armor sleeve with an FEP outer jacket, the extension assembly effectively guards internal 75Ω triaxial wiring from crushing forces, processing fluids, and heavy oil mist tracking.

System Compatibility and Replacement Models

System Compatibility:

• Bently Nevada 3300 XL Proximitor Sensors (e.g., 330180 series pre-calibrated to AISI 4140 steel target tracks)
• Bently Nevada 3300 XL Standard Extension Cables (e.g., 330130 series)
• Standard machinery protection input channels (e.g., 3500/42M modules or Orbit 60 systems)
• Backward compatible and interchangeable with legacy non-XL 3300 series 5 mm and 8 mm components under API 670 guidelines.

Alternative Replacement Models:

• 330105-02-12-10-02-CN (Standard stock catalog reverse-mount armored probe option without MOD customization)
• 330106-05-30-10-02-CN (Standard stock catalog forward-mount armored probe alternative with external threads)
• 330105-XX-XX-10-01-CN (Alternative custom configuration featuring standalone armored lead wire without the factory ClickLoc connector protector option)

Differences from Alternative Models:

• Custom Modification Control: The presence of the MOD 165931-01 flag signals a hyper-specific mechanical modification profile (such as non-standard sleeve sizing or structural threading alterations) that strictly separates it from stock configurations like the standard 330105-02-12-10-02-CN.
• Mounting Physical Layout: As a 330105 series transducer, it utilizes a reverse-mount housing design where the assembly is threaded from inside a holder block or housing casing, establishing a clean reverse profile compared to the externally threaded forward-mount 330106 series.
• Explosion Certification Depth: The -CN suffix denotes standard industrial ratings without explosive area certification barriers. If deploying sensors inside Zone 0 or Class I Division 1 explosive gas zones, the -05 Multiple Approvals option code must be ordered instead.

Ordering Information Table

Installation & Troubleshooting FAQ

Q1: What is the proper calibration gap voltage target for setting up this 3300 XL 8mm probe?

A: For a standard 3300 XL 8mm proximity transducer system, the correct initial field calibration voltage target is -9.0 VDC when configuring for radial vibration. This output voltage aligns with the physical midpoint of the sensor's 2.0 mm (80 mils) linear range. Hook a digital multimeter across your Proximitor sensor's OUT and COM terminals, then slowly turn the reverse-mount body until the voltage measures -9.0 VDC before locking your assembly.

Q2: Why am I getting "false vibration" indications or high shaft runout readings on my monitor?

A: This issue is typically caused by mechanical or electrical runout across the shaft target track surface. Eddy current sensors are highly sensitive to surface microscopic defects. Scratches, rust pits, residual shaft magnetism, or local heat-treatment variations on the shaft track will be misread by the system as real dynamic movement. Ensure your probe track is precision-ground and demagnetized to meet API 670 standards, or apply slow roll runout compensation inside the software.

Q3: What drives severe scaling drift or a heavily distorted calibration line inside a deep bore recess?

A: If the surrounding counterbore diameter is cut too narrow or if the 8mm tip sits too close to an internal housing shoulder, it triggers a Side View Effect (cross-talk with the machine housing). The electromagnetic field emitted from the polyphenylene sulfide (PPS) tip will couple into the nearby metallic walls, causing signal dampening. Ensure the local counterbore diameter is kept at a minimum of three times the probe tip diameter (at least 24mm for this 8mm tip) to isolate the signal.

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