BENTLY NEVADA 330930-065-01-CN – 6.5 m Extension Cable for 3300 XL Proximity Transducer Systems

The BENTLY NEVADA 330930-065-01-CN is a factory-specified extension cable, nominal length 6.5 m, used between a 3300 XL proximity probe and its Proximitor sensor. From my experience, keeping the probe/extension cable length correct is the fastest way to protect calibration and linear range on critical vibration and shaft position measurements. The “-CN” variant typically indicates China-market labeling and documentation, while the electrical and mechanical form-fit-function remains the same as the standard 330930 configuration.

One thing I appreciate is how reliably this cable mates with existing 3300 XL 5 mm/8 mm and NSv chains when the full transducer system is length-matched. You might notice that it reduces troubleshooting because the controlled-impedance miniature coax maintains signal integrity from the probe tip all the way to the proximitor.

Company’s Order Placement Process and Guarantees

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

Key Features

• Calibrated system length (6.5 m): Helps maintain factory calibration when paired with the correct probe and Proximitor sensor in the 3300 XL chain.
• Controlled-impedance miniature coax: Preserves the eddy-current signal so amplitude and phase stay consistent over long runs.
• Rugged industrial jacket: Typically FEP/PFA-style materials offer chemical resistance in oil and steam environments.
• Positive, keyed connectors: Designed to prevent mismating and reduce connection errors during turnarounds.
• Temperature capability for plant duty: In many cases supports the same high-temperature range as 3300 XL cabling (commonly specified for harsh areas).
• CN variant labeling: Same application and performance as standard units, typically with China-market compliance markings and documentation.
• Drop-in for brownfield upgrades: Compatible with installed 3300/3500 monitoring architectures when the transducer chain is specified correctly.

Technical Specifications

Application Fields

This cable is typically used in vibration, shaft position, and expansion monitoring on:

• Steam and gas turbines (bearing vibration and axial position)
• Compressors and expanders (shaft vibration and casing movement)
• Pumps, fans, blowers, and large motors
• Gearboxes and paper machine rolls where continuous condition monitoring is required

A maintenance lead in a combined-cycle plant told us their swap to a correctly length-matched 330930 cable stabilized their 1X trend immediately, which seems to be a common outcome when mismatched cabling was the hidden issue.

Advantages & Value

• Reliability: Factory-specified cable that keeps the proximitor-probe system within its intended linear range.
• Compatibility: Works with installed 3300/3500 monitoring racks when transducer chain lengths are matched.
• Cost savings: Reduces nuisance alarms and commissioning hours often caused by non-matched cabling.
• Technical support: We can help verify part compatibility against your probe and proximitor P/Ns before shipment.

Installation & Maintenance

• Environment: Route the cable through protective conduit or tray; avoid tight bends and crushing loads. Keep away from high-voltage runs to minimize noise pickup.
• Connections: Use the keyed connectors to mate with the probe and proximitor. From my experience, engaging the lock until it’s fully seated avoids intermittent readings.
• Grounding: Follow Bently Nevada grounding practice; in most cases, the shield is managed at the proximitor end only.
• Cabinet standards: When terminating at a proximitor inside a panel, allow ventilation space and secure the cable with strain relief to prevent connector stress.
• Routine checks: Inspect jacket integrity during outages, clean connectors with isopropyl alcohol if needed, and verify the overall transducer chain length matches the original spec.
• Spare strategy: It’s wise to stock the same length code used in your critical trains to speed up turnarounds.

Quality & Certifications

• Conforms to manufacturer’s quality standards for 3300 XL transducer components
• Typically compliant with RoHS/REACH; CE marking may apply at system level
• Manufacturer’s limited warranty typically 1 year; our coverage: 365 days

Related Components (for a complete chain)

• 3300 XL Proximity Probe (e.g., 5 mm or 8 mm tip) – select tip length and thread to match your machine
• 3300 XL Proximitor Sensor – match to probe type and total cable length
• Mounting hardware and brackets – as per machine and probe thread specifications