Bently Nevada 16925-30 Replacement Cable | 3300 Series

Product Overview

Bently Nevada 16925-30 Replacement Cable | 3300 Series: Seamless Transition from Legacy Proximity Systems

The Bently Nevada 16925-30 is a 30-foot (approximately 9 meters) unarmored interconnect cable engineered specifically for the Bently Nevada 3300 Series Proximity Transducer System. This cable serves as the critical signal link between the eddy-current proximity probe and the proximitor/extension driver, forming the backbone of rotating machinery vibration and position monitoring in turbines, compressors, pumps, and other critical industrial assets.

For facilities operating legacy Bently Nevada 3300 Series installations — including systems built around the 3300 XL 8mm Proximity Transducer, the 3300 5mm Proximity Transducer, or the 3300 NSv Proximity Transducer — the 16925-30 interconnect cable is a direct, specification-matched replacement. Whether your existing cable has suffered mechanical damage, connector corrosion, signal degradation, or simply reached end-of-service life, this replacement restores full system integrity without requiring re-engineering of the probe-to-proximitor signal chain.

At TOPNLMS, we maintain ready stock of the 16925-30 to support emergency replacement, planned maintenance shutdowns, and spare-parts inventory programs for industrial facilities worldwide. All units are inspected prior to dispatch, and every order is covered by our 12-month replacement warranty.

Compatibility Comparison Table

Seamless Upgrade Solutions

A cable replacement rarely occurs in isolation. When modernizing or maintaining a Bently Nevada 3300 Series proximity measurement system, the 16925-30 interconnect cable is typically replaced or upgraded alongside several complementary components to ensure the entire signal chain is restored to specification.

The most common companion replacement is the Bently Nevada 3300 XL 8mm Proximity Transducer (probe tip), which shares the same coaxial signal architecture and is often replaced simultaneously when cable damage is caused by mechanical impact or vibration fatigue at the probe mounting point. Similarly, the Bently Nevada 3300 XL Proximitor Sensor — the signal conditioning module that converts the eddy-current probe output into a usable DC voltage — should be inspected and replaced if signal drift persists after cable replacement.

For facilities running Bently Nevada 3500 Series Machinery Protection Systems, the 16925-30 cable is also compatible with certain 3500-series transducer configurations, making it a versatile spare for multi-platform maintenance programs. The Bently Nevada 3500/42M Proximitor I/O Module and the 3500/22M Transient Data Interface are frequently serviced in the same maintenance window, as they process the analog signals delivered through the interconnect cable.

In control cabinet environments, the interconnect cable interfaces with Bently Nevada TDI (Transient Data Interface) modules and feeds into System 1 Condition Monitoring Software via the rack backplane. Facilities upgrading from older Bently Nevada 7200 Series or 3000 Series proximity systems to the 3300 platform will find the 16925-30 cable essential for bridging legacy probe installations to modern proximitor modules without full probe replacement.

Additional components commonly sourced alongside the 16925-30 include Bently Nevada 3300 RAM (Rack Adapter Module) for DIN-rail or panel-mount installations, signal isolators for electrically noisy environments, and Bently Nevada programming and configuration cables used during system commissioning and calibration. For sites performing a full machinery protection system retrofit, Bently Nevada 3500/15 Power Supply Modules are also frequently replaced to ensure stable excitation voltage to the transducer chain.

Retrofit Guidance FAQ

Q: Does replacing the 16925-30 cable require any wiring changes at the junction box or control cabinet?
A: No. The 16925-30 uses standard coaxial push-on connectors at both the probe and proximitor ends. Replacement is a direct plug-in swap. No terminal rewiring, no cable tray modification, and no changes to the proximitor input wiring are required.

Q: Will the replacement cable affect my existing PLC or DCS signal inputs?
A: No. The 16925-30 carries an analog DC voltage signal (typically –24 VDC bias, with output ranging from –2 VDC to –18 VDC depending on gap). This signal is passed directly to the proximitor and then to the 3500 rack I/O module. Your PLC or DCS analog input card sees no change in signal type or range.

Q: Is the 16925-30 compatible with both 5mm and 8mm probe systems?
A: Yes. The interconnect cable is electrically compatible with both the 3300 5mm and 3300 XL 8mm proximity transducer families. The key variable is the total system cable length (probe cable + interconnect cable), which must match the proximitor’s calibrated range. Confirm your proximitor’s calibration range before installation.

Q: Can this cable be used in hazardous area (ATEX/IECEx) installations?
A: The standard 16925-30 unarmored cable is designed for general industrial environments. For hazardous area installations requiring ATEX or IECEx certification, consult the Bently Nevada 3300 Series installation documentation and verify the appropriate cable variant for your zone classification.

Q: How do I verify the cable is functioning correctly after installation?
A: After installation, use a calibrated gap tool or a Bently Nevada proximitor calibration kit to verify the DC output voltage at the expected air gap. The 3500 rack’s OK relay and the System 1 software will confirm signal integrity. Any deviation from the calibration curve indicates a probe, cable, or proximitor fault.

Q: What is the lead time and shipping arrangement?
A: TOPNLMS ships from Xiamen, China. In-stock units are dispatched within 1–3 business days. Express international shipping (DHL, FedEx, UPS) is available for emergency replacement requirements. Contact us for freight quotes and customs documentation support.

Warranty Assurance

Every Bently Nevada 16925-30 interconnect cable supplied by TOPNLMS is covered by a 12-month replacement warranty from the date of shipment. Our pre-shipment inspection process includes visual inspection of connectors and cable jacket, continuity and insulation resistance verification, and packaging integrity check to ensure the unit arrives in field-ready condition.

In the event of a warranty claim, TOPNLMS provides a straightforward replacement process: contact our technical team with your order reference and a description of the fault, and we will arrange a replacement dispatch or issue a credit note based on your preference. We do not require the return of the faulty unit for standard warranty claims on cable assemblies.

Our procurement assurance program also includes certificate of conformance (CoC) documentation on request, country-of-origin documentation for customs compliance, and packing lists and commercial invoices formatted for international import requirements. For facilities operating under ISO 55000 asset management or IEC 61511 functional safety frameworks, we can provide additional traceability documentation upon request.

TOPNLMS is committed to supporting industrial facilities with reliable spare parts supply, technical pre-sales consultation, and responsive after-sales support. Our team has deep experience in Bently Nevada, Emerson, ABB, Siemens, and Rockwell Automation spare parts sourcing, and we maintain an active inventory program to minimize your exposure to long lead times on critical machinery protection components.