330190-080-01-00 Bently Nevada ETR Extension Cable Stock

Executive Summary

The 330190-080-01-00 is a heavy-duty 8.0-meter armored extension cable engineered for the Bently Nevada 3300 XL Extended Temperature Range (ETR) Series. Designed to bridge proximity probes and remote Proximitor sensors, this unit maintains tight impedance matching and signal integrity across extreme operating temperatures reaching up to +260 °C (+500 °F).

Featuring perfluoroalkoxy (PFA) triaxial insulation and flexible stainless steel armor, the 330190 cable protects sensitive high-frequency signal lines against hot mechanical abrasion, hot oil spray, and severe industrial electromagnetic interference (EMI).

Core Architecture & Insulation Technology

Built upon a specialized 75 Ω triaxial transmission path, the 3300 XL ETR Cable replaces standard FEP dielectric jackets with high-grade PFA insulation. Gold-plated brass or gold-plated beryllium copper connectors ensure low contact resistance and prevent galvanic corrosion in high-vibration applications.

The outer stainless steel armor casing shields the internal triaxial conductors from mechanical crushing, hot metal debris, and pinch hazards while preserving the minimum required 25.4 mm (1.0 in) bend radius during installation through tight conduit runs.

Technical Specifications

Configuration Breakdown & Options Tree

The part string 330190-080-01-00 breaks down into the following design parameters:

• 330190 - 3300 XL ETR Extension Cable Base Unit
  • 080 [Cable Length Option]: 8.0 meters (26.2 feet) calibrated length
  • 01 [Armor Option]: Flexible stainless steel armor over PFA triaxial cable
  • 00 [Agency Approval Option]: Standard non-certified / No specific approval required

Target Equipment, Applications & Diagnostic Capabilities

The 330190-080-01-00 cable assembly connects probes inside harsh turbomachinery casings to remote signal conditioners.

Target Machinery & Application Scenarios:

• Steam turbine high-pressure (HP) rotor expansion and bearing vibration monitoring.
• Gas turbine exhaust frame bearing housing displacement setups.
• Ethylene compressor trains requiring high-temperature, oil-proof signal runs.
• Hydroelectric generator thrust bearing assemblies exposed to mechanical wear.

Diagnostic Capabilities:

• Impedance Match Stability: Holds strict 75 Ω transmission characteristics to keep Average Scale Factor (ASF) shifts below 3%.
• Phase Drift Suppression: Prevents signal phase delays in Keyphasor lines over long 8.0-meter spans.
• Ground Loop Protection: Isolated triaxial shielding eliminates common-mode electrical noise in industrial plants.

Global PLC Spare HUB's Insight

Keep these field installation guidelines in mind when routing the 330190-080-01-00 in industrial skids:

1. Connector Torque Control: Gold-plated ClickLoc connectors must be hand-tightened to a maximum torque of 0.565 N·m (5 in·lbf). Over-tightening can deform the delicate center conductor pin sockets, causing intermittent open circuits during machine heat-up.

2. Total System Length Calibration: Eddy current proximity transducers are calibrated to operate at a specific total system length (typically 9.0 meters when combining a 1.0 m probe with an 8.0 m cable). Never modify or cut the length of the 330190 cable; shortening the line alters circuit inductance and capacitance, invalidating system scale factor calibration.

Logistics, Packaging & Warranty Terms

• Quality Protection: Includes full 12 Months Warranty coverage against manufacturing defects.
• Fast Order Fulfillment: Stock dispatches within 24 to 48 hours from order confirmation.
• Global Express Courier Delivery: Tracked international express shipping via FedEx, UPS, or DHL.
• Protective Packaging: Coiled using large-radius support and fitted with protective dust caps over both connector ends.

Selection Guide & Technical FAQ

Selection Guide: How do I determine if I need an ETR cable like the 330190 instead of a standard 330130 cable?

Choose the ETR 330190 cable when routing through ambient environments exceeding +177 °C (+350 °F). The PFA insulation on the ETR version operates safely up to +260 °C (+500 °F), whereas standard FEP cables fail above +177 °C.

What is the maximum recommended torque when mating coaxial cable connectors?

Apply a maximum torque of 0.565 N·m (5 in·lbf). Always use calibrated connector torque wrenches or hand-tighten until the internal click latch engages securely.

Can I interchange 3300 XL 8mm extension cables with older non-XL 3300 components?

Yes. 3300 XL 8mm components are physically and electrically interchangeable with non-XL 3300 5mm and 8mm components, provided you respect the 25.4 mm (1.0 inch) minimum bend radius.

Does the flexible stainless steel armor ground the extension cable shield?

No. The stainless steel armor provides mechanical protection and is electrically isolated from the internal triaxial signal shield to prevent ground loop noise.

How do I test cable signal integrity before powering up the system?

Measure DC resistance across the center conductor pin to pin (RCORE target: 1.76 ± 0.26 Ω) and outer jacket to outer jacket (RJACKET target: 0.53 ± 0.11 Ω) using a calibrated digital multimeter.

Tags