Bently Nevada 330103-00-13-20-12-CN 3300 XL 8 mm Proximity Probe

Product Overview

The 330103-00-13-20-12-CN is a premium proximity probe from the Bently Nevada 3300 XL series, designed for non-contacting measurements of shaft vibration and position. This specific model features a 3/8-24 UNF threaded body and is engineered for maximum durability in high-performance industrial environments.

This probe is a critical component of a transducer system that provides high-frequency vibration data and axial position monitoring for large-scale rotating equipment. The "CN" designation indicates that the unit is certified under specific regional agency approvals (notably for China), ensuring it meets stringent safety requirements for installation in hazardous areas.

Technical Configuration

The part number options define the precise mechanical dimensions and connectivity for this 8 mm probe:

• Unthreaded Length (00): 0.0 inches. The probe body is fully threaded, allowing for maximum flexibility when mounting in a bracket or through a machine casing.

• Overall Case Length (13): 1.3 inches. A compact case design suitable for tight mounting spaces or standard probe housings.

• Total Length (20): 2.0 metres (6.6 feet). This length provides extra reach from the probe mounting point to the junction box where the extension cable begins.

• Connector and Cable (12): Features a miniature coaxial ClickLoc™ connector with a connector protector and FluidLoc® cable. This protects the signal from moisture wicking and ensures the connection remains secure despite intense vibration.

• Agency Approval (CN): Complies with country-specific regulations for hazardous environments.

Technical Specifications

Technical FAQs

What are the benefits of the FluidLoc® cable (Option 12)?

FluidLoc® technology is specifically designed for oil-filled environments. Standard coaxial cables can allow oil to "wick" or travel through the inside of the cable jacket over time. FluidLoc® seals the internal structure, preventing oil from leaking into the connector or the Proximitor housing.

Can I use a 2.0m probe with any extension cable?

No. To maintain the accuracy of the 3300 XL system, the Total System Length (Probe + Extension Cable) must match the Proximitor's calibration (typically 5.0m or 9.0m). For a 2.0m probe, you must use a matching 3.0m or 7.0m extension cable.

How does the ClickLoc™ connector work?

The ClickLoc™ is a specialized miniature coaxial connector that provides a tactile "click" when fully engaged. The included connector protector (Option 12) is a transparent sleeve that locks the connection in place, preventing it from backing out due to machinery vibration.

Engineering & Installation Guide

• Gapping for Accuracy: During installation, the probe should be gapped at the center of its linear range. Using a voltmeter at the Proximitor output, adjust the probe position until the DC voltage reads -9.0 VDC (standard for AISI 4140 steel targets).

• Target Material Calibration: The 3300 XL system is standard-calibrated for AISI 4140 steel. If your shaft is made of a different material, such as stainless steel, the scale factor (200 mV/mil) will change, and the monitoring system must be adjusted accordingly.

• Avoid Cable Stress: While the PPS tip and stainless steel case are rugged, the coaxial cable should never be used to pull or support the weight of the probe. Ensure a minimum bend radius of 25.4 mm (1.0 in) is maintained during routing.

• Environmental Protection: Always use the provided connector protector. In high-moisture or chemical environments, consider using additional heat-shrink tubing over the connector junction for an airtight seal.