Description

Technical Overview

The Bently Nevada 84661-82 Velomitor Interconnect Cable is a precision-engineered signal transmission solution designed specifically for high-reliability vibration monitoring in critical industrial rotating equipment. As an integral component of the Bently Nevada 3300 XL and 3500 asset protection systems, this cable ensures accurate, low-noise transfer of velocity signals from Velomitor seismic sensors (e.g., 330180, 330105) to monitoring instrumentation—enabling real-time health assessment of turbines, compressors, motors, and pumps.

Engineered to meet stringent EMI/RFI immunity requirements in harsh plant environments, the 84661-82 features double-shielded coaxial construction with a ruggedized polyurethane jacket rated for continuous operation between –40°C and +85°C. Its optimized impedance matching (50 Ω nominal) and controlled capacitance (<65 pF/m) minimize signal attenuation and phase distortion over extended runs—critical for maintaining diagnostic integrity in predictive maintenance programs. The cable complies with IEEE 1127 and API RP 670 standards, supporting seamless integration into existing Bently Nevada ecosystems without recalibration or signal conditioning.

Key Features

• Factory-Terminated Precision Connectivity: Pre-assembled with industry-standard 10-32 UNF male connector on sensor end and 7-pin MIL-C-5015 (or equivalent) mating connector on system end—ensuring repeatable, low-contact-resistance connections.
• Robust Environmental Protection: Polyurethane outer jacket resists oil, coolant, ozone, abrasion, and mechanical flex fatigue—validated for >1 million flex cycles per ASTM D297–00.
• EMI-Resilient Signal Integrity: Dual-layer braided copper shielding (>95% coverage) combined with foil wrap provides superior noise rejection in high-interference zones near VFDs, switchgear, and RF sources.
• Plug-and-Play Compatibility: Fully interoperable with Bently Nevada Velomitor series sensors and 3300/3500/3600 monitoring racks—no field termination or calibration required upon installation.

Specifications

• Part Number: 84661-82
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: Velomitor Interconnect Cable (Signal Transmission Cable for Velocity Sensors)
• Warranty: 24-month limited warranty against material and workmanship defects

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