Bently Nevada 330130-040-03-00 Proximitor Extension Cable Stock

Product Overview

The Bently Nevada 330130-040-03-00 operates as a high-performance 3300 XL series extension cable engineered for proximity transducer systems. This premium 4.0-meter armored cable acts as the vital electrical link connecting an 8 mm eddy current probe to a Proximitor Sensor. It accurately transmits high-frequency displacement telemetry from critical rotating machinery, such as industrial steam turbines and compressors, without signal degradation or impedance mismatches.

Core Technological Advantages

Suffix Part-Number Configuration

The specific model code string outlines precise structural properties engineered for immediate deployment:

• 040 Cable Length Option: Provides a nominal cable length of exactly 4.0 meters (11.5 feet) for specific sensor-to-amplifier distances.
• 03 Connector Option: Integrates robust stainless steel armored cabling along with a factory-installed mechanical connector protector.
• 00 Approvals Option: Specifies that standard agency certification approvals are not required for the designated site installation.

Mechanical Armoring and Pull Strength

The physical build features rugged armoring over the core, weighing 103 g/m (total weight: 0.618 kg). The underlying architecture utilizes patented CableLoc molding methods, delivering a massive 330 N (75 lbf) pull strength to ensure the assembly withstands severe industrial stress.

Precision DC Electrical Resistance

The cable core establishes highly repeatable eddy current sensor calibrations through strictly controlled internal resistance tolerances. The center conductor (RCORE) maintains a low resistance of 0.88 ± 0.13 Ω, while the outer jacket boundary (RJACKET) measures precisely 0.26 ± 0.05 Ω.

Technical Specifications

Engineering Installation Guide

Probe Connection and Oil Protection

Each cable kit includes premium silicone tape. However, do not apply silicone tape if the active probe-to-extension connection faces exposure to aggressive turbine oil. Always deploy the integrated mechanical connector protector in these spaces to isolate terminal electrical links.

Standard Operational Gap Reference

For nominal calibration and maximum measurement linearity across the 2 mm span, gap the 8 mm eddy current probe exactly at 1.27 mm (50 mils) from the target. Ensure the machine shaft target consists of AISI 4140 steel to maintain strict loop output accuracy.

Field Wiring Configurations

Connect the Proximitor Sensor to monitors using 3-conductor shielded triad cable with tinned wiring. Keep the continuous cable run below the maximum physical limit of 305 meters (1,000 feet) to prevent signal roll-off at elevated machine vibration frequencies.

Engineering Advantages

Premium Mechanical Protection

The 03 armored steel jacket shields delicate inner insulation layers from high-velocity impact, sharp debris, and aggressive pulling handling common during maintenance turnarounds.

Excellent Temperature and Humidity Stability

Tested in strict compliance with the IEC 68-2-3 standard for 56 continuous days inside 93% relative humidity chambers, the internal materials demonstrate under a 3% change in Average Scale Factor (ASF).

Patented Structural Durability

Combining the proprietary TipLoc body molding with the CableLoc termination method secures components against a pull force up to 330 N, eliminating standard cable detachment errors inside harsh machinery housings.

Technical FAQs

Q1: What happens if the system input supply voltage rises more positive than -23.5 Vdc?
A1: Operating the transducer system with a power level more positive than -23.5 Vdc can degrade performance, leading to a significantly reduced linear range across the AISI 4140 steel target.

Q2: Why are the core conductor and jacket resistances of this 4.0m cable controlled so tightly?
A2: RCORE (0.88 ± 0.13 Ω) and RJACKET (0.26 ± 0.05 Ω) are strictly tuned to ensure complete interchangeability with standard 3300 XL Proximitors without requiring a complete hardware recalibration.

Q3: Does the cable shield internal media layers against pressure differentials?
A3: The extension cable handles signal routing, while the companion 3300 XL 8 mm probe housing is engineered with a built-in Viton O-ring to seal internal differential pressure between the probe tip and the machine case.