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The 84661-49 is a two-conductor, stainless steel armored shielded interconnect cable, functioning as the vital signal transmission link for Bently Nevada 330500 Velomitor piezo-velocity sensors. Providing an extensive routing reach of 49 feet, the cable architecture integrates a 22 AWG twisted, shielded core entirely enveloped in heavy-duty stainless steel armor.
Features a high-strength, flexible stainless steel outer armor for premium physical protection
Engineered with 22 AWG twisted-pair wiring and a high-density shield layer to minimize EMI
Features a specialized moisture-resistant female connector with a securing nut on the sensor end
The 84661-49 features highly specialized industrial termination points on both ends. The sensor end is fitted with a 2-socket moisture-resistant female connector with premium sealing, securely blocking the ingress of lubricating oils, water vapor, chemical mists, and industrial dust. Meanwhile, the monitor end is terminated with heavy-duty ring lugs for solid, permanent termination onto the back terminal blocks of the 3500 monitoring rack.
Operating across an ultra-wide thermal bandwidth of -55°C to +121°C, the cable perfectly synchronizes with the ecological rating of the velocity transducer itself. As an essential component for permanent vibration monitoring solutions, it is widely utilized across heavy industrial sectors to monitor absolute bearing housing, casing, and structural vibrations of high-value rotating machinery such as utility steam turbines, high-pressure compressors, and process pumps, maximizing the long-term operational safety of critical plant assets under volatile operational loads.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 84661-49 Extension Cable Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Connects velocity sensors on large steam turbines and forced draft fans to safely transmit absolute bearing housing vibration signals under high-temperature and high mechanical wear conditions.
Hydroelectric Power
Deployed in the humid bearing areas of hydro-generator units to prevent moisture ingress and stably return lateral vibration data from upper and lower guide bearings.
Petroleum Refining & Refineries
Connects sensors on high-temperature recycle hydrogen compressors in hydroprocessing units, with a wide temperature limit to safely adapt to complex environments in crude oil refining.
Petrochemical Industry
Used for high-power variable frequency drive (VFD) driven ethylene gas compressor trains, relying on its efficient shielding layer to block VFD electromagnetic noise and ensure true signals.
Iron & Steel / Metallurgy Industry
Used for routine vibration measurement on hot rolling mill drive shafts and blast furnace blower bearing housings, preventing flying steel slag from causing physical melting of wires.
Pulp & Paper Industry
Used in high-temperature and humid areas of paper machine main dryers and refiners to protect operational monitoring signals of critical rolling bearings on continuous papermaking lines.
During operation, it is critical to strictly adhere to the minimum bend radius limits, which require no less than 1.5 inches for static installation. Sharp kinking must be avoided to prevent internal wire breakage or armor unravelling. The 2-pin female connector on the sensor end must be mated and torqued in a bone-dry environment to eliminate moisture or oil ingress, which can cause signal ground faults.
Furthermore, despite its heavy armor protection, never route this cable in close parallel proximity to high-voltage power lines. Finally, ensure it is firmly secured to trays or casings to avoid unsupported severe whipping that could inject false vibration spikes.
Alternative Names
Alternative Names
84661 498466I-4984661-2284661-20
Technical notes
Technical notes
The 84661-49 is a 49-foot two-conductor shielded cable wrapped in heavy-duty stainless steel armor, built for Bently Nevada 330500 Velomitor sensors. This rugged assembly features a moisture-resistant connector along with convenient terminal lugs, making it optimal for permanent industrial vibration monitoring setups. Constructed to withstand environmental extremes, the cable safely operates across a broad temperature spectrum from -55°C up to +121°C. While the overall product series accommodates customized lengths up to a maximum of 96 feet, this specific variant must connect exclusively to compatible monitors and does not function inside a 21128 housing.
Bently Nevada 84661-49 is an industrial-grade shielded interconnect cable designed specifically to connect Velomitor piezo-velocity sensors to machinery monitoring systems.
How to properly install and use the 84661-49 cable?
Tighten the 2-socket plug of the 84661-49 onto the top of the Velomitor sensor, connect the terminal lugs to the monitor module inside the cabinet, and ensure the entire run is properly secured to prevent mechanical wear.
Does the 84661-49 come with armored protection?
Yes, the 84661-49 belongs to the armored cable series, covered with a stainless steel armor conduit to effectively protect against physical cuts and crushing.
Which sensor models are primarily compatible with 84661-49?
The 84661-49 is fully compatible with Bently Nevada's 330500 Velomitor piezo-velocity sensors and other vibration sensors sharing the same connector profile, such as the 330525.
What is the minimum bend radius of the 84661-49 cable?
For the armored 84661-49 cable, the minimum bend radius should generally be maintained between 1.5 to 4 inches during routing, avoid over-kinking.
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