Bently Nevada 330730-080-01-CN – 8.0 m Extension Cable for 3300 XL Proximity Transducer Systems

The Bently Nevada 330730-080-01-CN is a factory-terminated extension cable designed for 3300 XL proximity transducer systems. From my experience, this is the “fit-and-forget” piece that keeps your probe-to-Proximitor signal chain within the correct system length, so you maintain calibration accuracy for vibration, position, and Keyphasor measurements. The “080” option typically denotes an 8.0 m cable length, and the “-CN” variant usually refers to China-market documentation/labeling while retaining the same electrical performance.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 8.0 m factory-terminated cable – Helps keep the total transducer system length within spec for correct Bently Nevada calibration.
• Designed for 3300 XL systems – Typically used between the proximity probe and the Proximitor sensor in standard 3300 XL installations.
• Stable, low-noise signal path – Coaxial construction supports reliable eddy-current probe signals for vibration/position monitoring and Keyphasor pickup.
• Industrial environment ready – Jacket and materials suited for routing in machinery spaces; usually specified for broad temperature ranges common to Bently Nevada cables.
• Drop-in replacement – Pre-terminated connectors help avoid field wiring errors and reduce installation time.
• -CN market variant – Typically includes Chinese labeling/documentation; electrical characteristics are the same as the standard version.

Technical Specifications

Application Fields

Typically used in critical machinery monitoring: steam and gas turbines, compressors, gearboxes, large motors, and pumps. You might notice that maintenance teams prefer fixed-length, pre-terminated cables like this to keep API 670-compliant measurement chains, especially where precise shaft vibration and position readings are audited.

Advantages & Value

• Reliability – Stable signal integrity across the full 8.0 m run reduces drift and troubleshooting time.
• Compatibility – Works with standard Bently Nevada 3300 XL probes/Proximitor sensors, so you can mix with existing spares confidently.
• Cost control – Pre-terminated assemblies cut installation time and avoid rework from wiring mistakes.
• Supportability – Easier for technicians to document chain lengths and maintain calibration records during audits.

Installation & Maintenance

• Cabinet and routing – Route the cable in grounded conduit or cable tray; avoid high-EMI paths; keep separation from power cables where possible.
• Bending and strain relief – Maintain a gentle bend radius (from my experience, a rule-of-thumb is >10× cable diameter); use clamps every 30–50 cm to prevent fretting.
• Connection practice – Clean, dry connectors; mate firmly; do not splice, extend, or cut the cable as this changes the calibrated system length.
• Safety – De-energize rotating equipment monitoring circuits before handling; lock out/tag out as per site procedures.
• Routine checks – Inspect jacket condition, connector tightness, and clamp points during outages; verify system bias voltage and gap readings after any rerouting.
• Firmware and calibration – No firmware on the cable itself, but it’s good practice to align Proximitor settings and monitor configurations after any cable replacement.

Quality & Certifications

• CE and RoHS compliance are standard for Bently Nevada transducer components in most regions.
• Manufactured under ISO 9001 quality systems at the OEM level.
• Warranty: 365 days (repair/replace policy per our sales terms).

One thing I appreciate is how consistent these assemblies are—field techs typically report fewer nuisance faults when they stick with the exact cable length and OEM connectors. If your installation has mixed probe lengths or legacy Proximitor models, I can help double-check the total system length so you don’t have to revisit calibration later.