Bently Nevada 330104-00-12-10-02-CN | Armored 120mm Probe

Product Overview

The Bently Nevada 330104-00-12-10-02-CN is a heavy-duty 3300 XL 8mm proximity probe designed for superior mechanical protection in industrial vibration monitoring. This model features an integrated stainless steel armor and a 120mm overall case length, making it ideal for deep-reach applications where cables are exposed to harsh physical conditions. With a total weight of approximately 0.45 kg (including armor), this USA-made sensor delivers high-precision displacement data for critical rotating assets.

Advanced Armored Protection

Ruggedized Cable Design

The 330104 series is distinguished by its flexible stainless steel armor, which protects the internal coaxial cable from abrasion, crushing, and sharp edges. This probe is specifically configured with an M10 x 1 metric thread and a 120mm case length (Option 12), ensuring reliable mounting in recessed bearing housings or through machine thermal insulation.

High-Performance Materials

Equipped with a Polyphenylene Sulfide (PPS) tip and an AISI 303/304 stainless steel case, this probe is built for chemical and thermal resilience. The internal Viton® O-ring provides a robust seal against differential pressure, preventing oil or process fluid ingress and ensuring the sensor's long-term electrical stability.

Technical Specifications

Accuracy & Interchangeability

The 3300 XL system is designed for total interchangeability, meaning this probe can be used with any 3300 XL extension cable and Proximitor sensor without custom calibration. It provides a standard scale factor of 7.87 V/mm (200 mV/mil) when targeting AISI 4140 steel. The ClickLoc connector ensures a vibration-proof electrical link, maintaining a stable -24 Vdc supply sensitivity with less than 2 mV output change per volt of input change.

Installation Considerations

This probe features a 00mm unthreaded length, allowing the M10x1 threads to extend the full length of the case for maximum mounting flexibility. For optimal radial vibration monitoring, the probe should be gapped at 1.27 mm (50 mils), which corresponds to a -9 Vdc output. The 1.0m armored cable provides a 7.59 Ω nominal DC resistance, ensuring high-fidelity signal transmission to the monitoring system.

Technical FAQs

Q1: What does the "CN" approval suffix indicate?
A1: The "CN" option refers to Country Specific approvals (such as NEPSI for China), ensuring compliance with local hazardous area regulations.

Q2: Can the armored cable be bent during installation?
A2: Yes, the stainless steel armor is flexible, but care should be taken to maintain the minimum bend radius to avoid damaging the internal coaxial cable.

Q3: Is the Viton® O-ring replaceable?
A3: The O-ring is part of the integrated pressure seal assembly between the PPS tip and the steel case, designed to handle differential pressure without maintenance.