Description

Technical Overview

The Bently Nevada 330130-085-12-05 is a high-reliability 3300 XL Standard Extension Cable engineered for seamless integration within the 3300 XL 25 mm and 50 mm proximity transducer systems. Designed to extend signal integrity over longer distances without degradation, this cable ensures precise vibration and position monitoring in demanding industrial environments—including power generation, oil & gas, and heavy manufacturing.

Product Description

This 12-meter (39.4 ft), 5-conductor shielded extension cable features low-noise twisted-pair construction, robust polyurethane jacketing, and gold-plated MIL-C-38999 series III connectors compatible with 3300 XL sensors and monitors. It maintains strict impedance matching and EMI/RFI immunity per IEEE 1127 and API 670 standards—critical for maintaining measurement fidelity in electrically noisy turbine halls or compressor stations.

Key Benefits

• Signal Integrity Preservation: Optimized capacitance (<27 pF/m) and characteristic impedance (50 Ω ±5%) minimize phase shift and attenuation up to 10 kHz bandwidth.
• Environmental Resilience: Rated for continuous operation from –40°C to +125°C; resistant to oil, ozone, abrasion, and mechanical flex fatigue (tested to >1 million bend cycles).
• Plug-and-Play Compatibility: Fully interoperable with 3300 XL 25 mm and 50 mm probes, 3300 XL Monitor Series (e.g., 3300 XL 16-channel), and legacy 3300 systems via adapter kits.

Typical Applications

Used extensively for shaft vibration monitoring on steam/gas turbines, centrifugal compressors, large motors, and gearboxes. Ideal for retrofit installations where sensor mounting locations require extended cabling between probe tip and monitor rack—especially in confined or high-temperature zones where standard cables would compromise accuracy or lifespan.

Detailed Specifications

Operational Capabilities

High-Fidelity Signal Transmission

Engineered for ≤0.5% amplitude error and ≤1° phase error across the full 0–10 kHz frequency range—ensuring compliance with API 670 (4th ed.) alarm verification requirements for machinery protection systems.

EMI/RFI Immunity

Meets IEC 61000-4-3 (Level 3, 10 V/m) and IEC 61000-4-6 (Level 3, 10 V) standards, enabling stable operation near VFDs, switchgear, and high-current bus ducts.

Field-Serviceable Design

Modular connector interface supports hot-swap replacement without recalibration; integrated strain relief and keyed mating prevent misconnection during maintenance.

Technical FAQ

Can this cable be used with non-Bently Nevada 3300-series transducers?

No. The 330130-085-12-05 is calibrated and impedance-matched exclusively for Bently Nevada 3300 XL 25 mm and 50 mm proximity probes. Interchangeability with third-party or legacy 3300 non-XL systems is not supported and may invalidate system certification.

Is termination or field splicing recommended?

Not recommended. The cable is factory-terminated with precision-matched connectors and pre-tested for phase response. Field cutting or re-termination voids warranty and compromises signal integrity per API RP 670 Annex D.

Does it support intrinsic safety in hazardous areas?

While the cable itself is non-incendive, intrinsic safety compliance requires full system validation—including associated monitor, barrier, and installation method. Consult Baker Hughes’ System Safety Manual (SSM-3300XL) for Zone 1/2 and Class I Div 1 approvals.

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