Bently Nevada 330180-91-05 – Extension Cable for 3300 XL Proximity Transducer Systems (5 m)

The Bently Nevada 330180-91-05 is a factory-terminated extension cable designed for the 3300 XL proximity transducer system. In most cases, it’s used to bridge the proximity probe in the machine casing to the Proximitor sensor in your cabinet, preserving signal integrity over distance. One thing I appreciate is how predictable it is in the field—when routed correctly, it maintains the calibrated relationship between the probe and the Proximitor without forcing you to retune or compromise your vibration/position readings.

Company’s Order Placement Process and Guarantees

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

Key Features

• Purpose-built for 3300 XL systems – Supports the typical probe-to-Proximitor wiring topology used across Bently Nevada machine trains.
• 5 m length (-05) – A practical run for most compressors, turbines, and critical pumps without adding avoidable signal loss.
• Factory-terminated coax – Consistent impedance and shielding for stable eddy-current sensor signals; no field splices to degrade measurement.
• Robust signal shielding – Helps resist EMI/RFI from VFDs and high-current starters when routed with proper separation.
• Drop-in compatibility – Typically used with 3300 XL 5 mm and 8 mm probe families and their matching Proximitor sensors.
• Low maintenance – Passive component; inspect routing and connectors periodically—usually that’s all it needs.

Technical Specifications

Application Fields

The 330180-91-05 is commonly specified wherever non-contact shaft vibration or position is measured with Bently Nevada 3300 XL systems:

• Steam and gas turbines – radial vibration, thrust position, and differential expansion setups
• Compressors and expanders – continuous vibration monitoring under high EMI conditions
• Large motors, generators, and gearboxes – proximity measurements in tight cabinets or long runs
• Critical pumps and fans – reliable signal routing from hazardous or high-temperature areas to safe cabinets

Advantages & Value

• Reliability – From my experience, factory-terminated Bently cables reduce nuisance faults that show up with field-spliced coax.
• Compatibility – Works with 3300 XL probes and Proximitor sensors, avoiding signal mismatches or calibration drift.
• Lifecycle cost – Stable cabling tends to cut troubleshooting time and repeated calibrations, which is usually the hidden cost on outages.
• Technical support – Clear part coding (-05 length) simplifies spares management and replacement during turnarounds.

Installation & Maintenance

• Cabinet & environment – Install the Proximitor in a ventilated control cabinet; keep the cable away from high-voltage and VFD output leads where practical.
• Routing – Maintain gentle bends (no sharp kinks); use proper strain relief. Separation from power cables typically improves noise immunity.
• Connections – Ensure connectors are fully seated and clean; do not over-torque. Avoid field splices unless the OEM procedure permits.
• Routine checks – Inspect annually for abrasion, crushed sections, and connector corrosion; verify vibration baselines after any cable changes.
• Firmware/monitoring – If tied to condition monitoring systems, keep monitor firmware up to date to ensure consistent diagnostics, even though the cable itself is passive.

Quality & Certifications

• Manufacturer quality aligned with Bently Nevada’s 3300 XL proximity transducer standards
• CE marking and RoHS compliance are typical for this product family
• Warranty: 365 days

Commonly Paired Components (for reference)

• Bently Nevada 3300 XL Probes (5 mm / 8 mm families) – non-contact eddy-current probes for shaft vibration and position
• Bently Nevada 3300 XL Proximitor Sensors – conditioning modules matched to probe/cable combinations

You might notice that plants running mixed OEM machinery prefer staying with the 330180 cable format when they standardize on 3300 XL. A maintenance lead at a gas compressor station told me they swapped in 330180-91-05 during a turnaround because the 5 m length “hits the sweet spot” between the probe location and the cabinet entrance, so they didn’t have to reroute conduit or move the Proximitor rail.