Product Overview

The Bently Nevada 330930-040-01-05 serves as a critical signal transmission link within the 3300 NSv (Narrow Side View) Proximity Transducer System. Specifically engineered for tight-clearance applications where standard 8mm probes cannot fit, this extension cable bridges the gap between the NSv probe and the Proximitor sensor. In high-stakes environments like centrifugal compressors and fluid-film bearing machines, maintaining signal purity is non-negotiable. This cable utilizes a high-frequency coaxial design shielded by Fluorinated Ethylene Propylene (FEP) and reinforced with stainless steel armor. It effectively captures high-resolution vibration and axial position data, ensuring that your Turbine Supervisory Instrumentation (TSI) receives accurate inputs for machine protection and condition monitoring. Its robust construction prevents electromagnetic interference (EMI) and physical degradation, safeguarding the continuity of your most vital rotating assets.

Technical Configuration Details

The 330930-040-01-05 model number follows a specific Bently Nevada coding structure that defines its physical attributes and deployment capabilities:

Cable Length (-040)

The 040 suffix specifies a total cable length of 4.0 meters (approximately 13.1 feet). In the NSv system, total system length (typically 5m or 7m) is critical for impedance matching. This 4.0m cable is designed to be paired with a 1.0m probe to reach a balanced 5.0m system configuration.

Armor Option (-01)

The 01 designation indicates the inclusion of Stainless Steel Armor. This flexible conduit provides superior crush resistance and protects the internal coaxial line from mechanical shearing or abrasion in heavy-duty industrial settings.

Agency Approval (-05)

The 05 suffix represents Multiple Approvals. This ensures the cable complies with international safety standards (including ATEX, CSA, and IECEx) for use in hazardous areas. It guarantees that the cable's capacitance and inductance parameters remain within intrinsic safety limits.

Technical Specifications

Installation Guide

Connector Integrity and Torque

Always ensure the miniature coaxial connectors are clean and dry before mating. We recommend using a connector protector (silicon tape) to prevent moisture ingress. Tighten the connectors "finger-tight" only; over-torquing can damage the internal gold-plated pins and lead to intermittent signal loss.

Minimum Bend Radius

To maintain the characteristic impedance of the 3300 NSv system, never exceed the minimum bend radius of 25.4 mm (1.0 inch). Kinking the cable disrupts the spacing between the center conductor and the shield, which results in false vibration readings or "noise" on the monitor.

System Length Matching

The 3300 NSv system is electrically tuned. Ensure the combined length of the probe and this extension cable matches the Proximitor sensor's requirement (e.g., a 5-meter Proximitor must use a 1m probe + 4m cable). Mixing lengths will cause significant scale factor errors and linearity issues.

Engineering Advantages

The 330930-040-01-05 is built for the "front lines" of industrial sensing. Its FEP jacket provides near-total immunity to oil, water, and most industrial chemicals, preventing the cable from becoming brittle or short-circuiting over years of exposure. The Stainless Steel Armor acts as a physical shield against falling debris and maintenance foot traffic, which are common causes of sensor failure during outages. Furthermore, its seamless compatibility with the 3300 NSv series allows for hot-swapping during maintenance without the need for recalibrating the entire signal chain, drastically reducing downtime for TSI system updates.

Delivery & Logistics

• Delivery Time: 3-5 days after payment is finalized.

• Shipping Carriers: Standard delivery via DHL / FEDEX / UPS.

• Packaging: Every cable is shipped in industrial-grade anti-static packaging and secured in a reinforced box to prevent any bending or crushing during transit.

Technical FAQs

Q1: Can I use this NSv cable with a standard 3300 XL 8mm probe?

A1: No. The NSv (Narrow Side View) system uses different electrical characteristics and connectors compared to the standard 3300 XL 8mm series. Using them together will result in incorrect data and potential system errors.

Q2: What happens if the stainless steel armor is grounded to the machine casing?

A2: The armor should ideally be isolated or only grounded at the Proximitor end to avoid ground loops. The 330930-040-01-05 design includes an outer FEP jacket over the armor in some configurations to help prevent accidental grounding.

Q3: How do I identify if my system requires the 5-meter or 7-meter version?

A3: Check the label on your Proximitor Sensor. It will explicitly state the "Total System Length." If it says 5.0m, this 4.0m extension cable (paired with a 1.0m probe) is the correct choice.

Q4: Is this cable "Sealed" and "New"?

A4: Yes, all units are provided in Brand New condition, original factory sealed, ensuring the gold connectors are free from oxidation or contamination.