Bently Nevada 330192-00-12-90-CN – 3300 NSv Extension Cable for Proximity Monitoring

The Bently Nevada 330192-00-12-90-CN is an extension cable for the 3300 NSv proximity transducer system—typically used to route the eddy-current signal from the NSv probe on the machine to the Proximitor sensor in the cabinet. From my experience, this model is chosen when you need a compact cable run in tight spaces, with the “90” option indicating a 90° connector boot at the probe side to ease strain relief near the bearing housing. The “12” seems to indicate a 12 m cable length, and the “CN” suffix is commonly associated with China market compliance/marking and packaging.

If you’re running 3300 NSv probes (often 330190 series) and Proximitor sensors in crowded skids or turbine enclosures, this cable keeps the signal clean and stable over longer distances. One thing I appreciate is how predictable the NSv chain is when all three pieces—probe, extension cable, and Proximitor—are matched properly. It reduces troubleshooting time on start-ups and turnarounds.

Our Order Placement Process and Guarantees

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

Key Features

• Purpose-built for 3300 NSv – Designed to connect 3300 NSv probes to their Proximitor sensors, preserving signal fidelity over distance.
• 12 m length (typical) – The “12” code aligns with a 12-meter run, covering most pump/compressor trains without mid-span junctions.
• 90° probe-end boot – The “90” option provides angled strain relief that fits tight bearing housings and helps avoid sharp bends.
• Miniature coax connectors – Bently Nevada miniature coaxial terminations for quick, repeatable mating to NSv probes and Proximitors.
• Passive, no power – The cable is a passive element, minimizing failure modes and simplifying spares planning.
• Industrial temperature capability – Built for typical turbomachinery environments; in many cases specified for elevated cabinet and field temperatures.
• CN market option – The “CN” suffix appears to indicate China-compliant marking/packaging for projects requiring local documentation.

Technical Specifications

Application Fields

You’ll see the 330192-00-12-90-CN on machinery where proximity measurement is space-constrained, yet long cable runs are needed back to the cabinet. It’s common in:

• Oil & Gas and Petrochemical – API pumps, steam turbines, compressors, gearboxes
• Power Generation – gas/steam turbines, generator bearings, balance-of-plant rotating assets
• Chemical & Fertilizer – compressors with compact bearing housings and limited cable clearance
• Pulp & Paper, Mining, and Metals – critical fans, mills, and drive trains

A maintenance lead told us they favor the 90° boot in congested compressor skids—“it keeps the cable from rubbing against the coupling guard,” which in many cases extends service intervals between inspections.

Advantages & Value

• Reliability – Stable signal transmission with Bently Nevada’s miniature coax standard; fewer intermittent connections during outages.
• Compatibility – Matches the 3300 NSv probe/Proximitor chain, reducing configuration risk on mixed fleets.
• Cost Control – Replace just the cable when damaged; no need to change the probe or Proximitor if readings are stable.
• Installation Efficiency – 90° boot saves bend space, typically simplifying routing through guards and conduits.
• Project Compliance – “CN” option appears to support China documentation/marking requirements for local projects.

Installation & Maintenance

• Environment – Route in dry, clean paths where possible; avoid hot spots beyond the cable’s rated temperature.
• Routing – Maintain gentle radii; avoid sharp edges. In most cases, follow a minimum bend radius guideline (commonly >25 mm) and keep away from high-voltage runs.
• Connections – Hand-tighten miniature coax connectors until positively seated; do not over-torque. Ensure the 90° boot exits strain-free.
• Cabinet Practice – Land the cable at the Proximitor sensor mounted in a ventilated cabinet; keep cable shields intact to maintain noise immunity.
• Maintenance – Periodically check for abrasion near guards; clean with non-aggressive solvents; verify transducer loop response during scheduled calibrations.
• Firmware/Calibration – Cable itself requires no firmware; verify system calibration at the monitor level after any cable replacement.
• Safety – Lockout/Tagout before working around rotating equipment; protect the cable from pinch points under guards and covers.

Quality & Certifications

• Manufacturer quality systems typically aligned with ISO standards
• CE and RoHS compliance are commonly available for transducer components; verify project-specific approvals as needed
• Warranty: 12 months (365 days) from delivery

Related/Supporting Components (for a complete chain)

• Bently Nevada 330190 – 3300 NSv probe, compact tip for tight bearing housings.
• Bently Nevada 330180 – Proximitor sensor (commonly used with NSv probes and extension cables).