Bently Nevada 330105-02-12-05-12-CN 8mm Probe

Bently Nevada 330105-02-12-05-12-CN 3300 XL 8mm Reverse Mount Probe

Product Introduction

The Bently Nevada 330105-02-12-05-12-CN is a high-quality reverse mount proximity probe from the trusted 3300 XL series. This model is specifically configured with 3/8-24 UNF threads and a 0.5-meter total length option, making it suitable for installations with space constraints. It includes a miniature ClickLoc coaxial connector with a FluidLoc cable for a secure and reliable connection.

This 3300 XL 8 mm probe provides accurate, linear measurements of shaft vibration and position. Its construction uses robust materials like PPS for the tip and AISI 303/304 stainless steel for the case. Consequently, it ensures durability and consistent performance in demanding industrial environments. The reverse mount design of the 330105-02-12-05-12-CN facilitates installation in tight locations where standard probes might not fit.

Technical Specifications

Electrical and Range Parameters
The Bently Nevada 330105-02-12-05-12-CN operates as part of a transducer system with a 75Ω triaxial cable. The nominal probe DC resistance from the center conductor to the outer conductor is 7.45 ± 0.50 ohms for its 0.5-meter length. Furthermore, its linear range and recommended gap settings are consistent with the 3300 XL 8 mm probe family, providing reliable data for machine condition monitoring.

Mechanical and Material Details
The probe tip is constructed from Polyphenylene sulfide (PPS), while the case uses either AISI 303 or 304 stainless steel (SST). The connector is made from gold-plated brass or beryllium copper, ensuring excellent signal transmission. The maximum length of thread engagement for the 3/8-24 thread is 0.563 inches, and the cable has a maximum rated tensile strength of 330 N at the case-to-lead junction.

Environmental and Operating Conditions

Temperature and Humidity Ratings
This standard 3300 XL probe operates and stores safely within a temperature range of -52°C to +177°C (-62°F to +350°F). However, exposing the probe to temperatures below -34°C (-30°F) for extended periods may lead to premature failure of the pressure seal. Additionally, the probe exhibits less than a 3% change in Average Scale Factor when tested in 93% relative humidity for up to 56 days, per IEC 68-2-3 standards.

Installation Guidelines

Mounting and Connection
Installing the 330105-02-12-05-12-CN requires careful handling to avoid damaging the connector or cable. First, thread the probe into the mounting hole by hand to ensure proper alignment. Then, tighten it to the specified torque using a suitable tool. Finally, connect the miniature ClickLoc connector by pushing it until it clicks, confirming a secure, locked fit. The FluidLoc cable option is generally not necessary for most installations due to the protective sleeve.

Cable and Wiring Considerations
The probe uses a 75Ω triaxial FEP-insulated cable. For applications requiring higher temperatures, an extended temperature range PFA cable is available. The maximum tensile strength at the probe lead to extension cable connectors is 270 N (60 lbf). Meanwhile, for optimal signal integrity, ensure all connections are clean and secure.

Packaging List

• 1x Bently Nevada 330105-02-12-05-12-CN 3300 XL 8mm Reverse Mount Probe

• 1x Attached 0.5m Triaxial Cable with ClickLoc Connector

• 1x Installation Guide

FAQ

Q1: What is the length of the cable on this model?
A: The Bently Nevada 330105-02-12-05-12-CN comes with a 0.5-meter triaxial cable.

Q2: What type of threads does this probe have?
A: This specific model features 3/8-24 UNF threads for installation.

Q3: Is the FluidLoc cable option necessary for this probe?
A: For the vast majority of 3300 XL 8 mm probe installations, the FluidLoc cable option is not necessary due to the presence of the probe sleeve.

Q4: What is the maximum temperature for this probe?
A: This standard probe has an operating temperature range of -52°C to +177°C.

Q5: What is the probe's DC resistance?
A: The nominal DC resistance (RPROBE) for the 0.5-meter length is 7.45 ± 0.50 ohms.