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          Discontinued / Obsolete by OEM
          Apter Power sources genuine heavy-duty transducer cables to protect machinery predictive maintenance channels.

        84661-33

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        Bently Nevada 84661-33 armored interconnect cable, 2-conductor twisted shielded 22 AWG, 3–96 ft length, with moisture-resistant female connector and terminal lugs for use with monitors.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 84661-33

        • Manufacturer:
          Bently Nevada
        • Part Number:
          84661-33
        • Product Family:
          330500 Velomitor Piezo-velocity Sensor
        • Product Type:
          Interconnect Cable
        • Stock:
          1
        • Armor Material:
          Stainless steel
        • Shielding:
          Shielded construction
        • Connector (Transducer End):
          2-socket moisture-resistant female connector
        • Connector (Monitor End):
          Ring lugs / terminal lugs
        • Application:
          Used with monitor or VDC
        • Weight:
          0.88 kg
        • Estimated shipping dimensions:
          28x28x5cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Application Communications Safety and Compliance

        Features:

        • Uses piezoelectric crystal technology to directly output a voltage signal proportional to vibration velocity, eliminating the need for external integrators and simplifying interfaces with monitoring systems.
        • Typically provides 100 mV/in/s (3.94 mV/mm/s) sensitivity with a wide frequency range (e.g., 4 Hz to 5 kHz), suitable for monitoring everything from low‑speed fans to high‑speed turbomachinery.
        • Features a hermetically sealed stainless steel housing and a top‑exit sealed connector, offering high ingress protection, corrosion resistance, and moisture resistance for long‑term continuous operation in harsh industrial environments.
        The 84661-33, as part of the 330500 series, directly outputs a vibration velocity signal. Traditional monitoring systems using accelerometers require software or hardware integration to derive velocity, adding complexity and potential error. This sensor uses a piezoelectric crystal that generates a voltage directly proportional to instantaneous vibration velocity when subjected to shear stress from machine casing vibration.

        The 84661-33 offers 100 mV/in/s sensitivity and a wide frequency range from 4 Hz to 5 kHz. High sensitivity ensures capture of subtle vibration changes, which is critical for early bearing fault detection (e.g., incipient rolling element spalling). The wide frequency response makes it adaptable to rotating equipment of various speeds: at low speeds (e.g., large fans), the low‑end cutoff of 4 Hz does not attenuate the signal.

        In environments such as chemical plants, offshore platforms, or paper mills, sensors face harsh climates and corrosive media. The 84661-33 features a fully welded stainless steel hermetically sealed housing that has passed rigorous moisture, salt spray, and corrosion tests. The hermetically sealed connector not only ensures IP66/IP67 ingress protection but also prevents loosening due to vibration.

        The 84661-33 Bently Nevada Armored Cable may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        Bently Nevada 84661-33 Armored 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.All prices are shown in USD.
        Bently Nevada 84661-33 Armored Cable Specs

        General

        • Manufacturer GE /Bently Nevada
        • Model 84661-33
        • Condition New Original ready stock
        • Product Family 84661-35,84661-40,84661-45,84661-50,84661-60,84661-65
        Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
        • Rotating Machinery Monitoring: Widely used in steam turbines, gas turbines, centrifugal compressors, pumps, and generators.<>
        • Signal Transmission: Specifically used to transmit high-frequency electromagnetic signals sensed by the probe, which are then converted into vibration, axial displacement, or speed data.<>
        • Critical Power and Petrochemical Facilities: As part of a Mechanical Protection System (MPS), it ensures that abnormal vibrations in critical assets during operation trigger alarms in a timely manner.<>
        • Connector Type: Typically equipped with gold-plated ClickLoc connectors (or compatible coaxial connectors) to ensure low resistance and corrosion resistance at connections to probes and preamplifiers.
        • Low Capacitance Design: To ensure the linearity of the 3300 Series system, the cable has a precise capacitance value, which is crucial for maintaining the standard scaling factor of 200 mV/mil (7.87 V/mm).
        • Channel Dedicated Setting: When using 10 Ω copper resistors (Copper RTDs), the module can be configured in dedicated mode via BTW (Block Transfer Write) to ensure linearity.
        • Shielding Features: Employs a high-density woven shielding layer to effectively block strong electromagnetic interference (EMI) in industrial environments, preventing noise from entering vibration monitoring data.
        • Physical Protection: The outer sheath is typically made of FEP (fluorinated ethylene propylene), possessing excellent chemical stability and resisting corrosion from industrial lubricants, solvents, and chemicals.
        • Environmental Compliance: Compliant with RoHS standards and free of hazardous substances such as lead and mercury.
        • Explosion-Proof Certification: When installed as part of a complete Bently Nevada proximity sensor system, its installation typically complies with ATEX, IECEx, and CSA certification requirements for intrinsically safe circuits, allowing use in explosive environments (Zones 0, 1, and 2).
        Description
        The Bently Nevada 84661-33 Standard Armored Interconnect Cable is designed for dependable signal transmission in industrial vibration monitoring systems. Its two-conductor twisted, shielded construction ensures accurate readings with minimal electromagnetic interference, providing reliable connections between transducers and monitors or VDCs.

        The 84661-33 features 22 AWG wires enclosed in a stainless steel armored sheath, offering strong mechanical protection while maintaining flexibility for installation in tight spaces. The shielded construction guarantees high signal integrity even in electrically noisy environments.

        At the transducer end, the 84661-33 is equipped with a 2-socket moisture-resistant female connector, and at the monitor end, it uses ring or terminal lugs, allowing easy installation with monitoring equipment. This cable is intended for use with monitors and is not compatible with the 21128 Velocity Transducer Housing.

        The 84661-33 is available in lengths from 3.0 ft (0.9 m) to 96 ft (29 m), making it suitable for a variety of industrial applications. Its robust design ensures long-term performance in demanding environments, delivering consistent signal quality and reliable system operation.
        Alternative Names
        8466I-33 84661 33 84661-6 84661-8 84661-17 84661-20 84661-10 84661-30
        Technical notes
        The 84661-33 is a component of the 3300 XL 8mm High‑Temperature Proximity Probe System. It features FluidLoc® cable technology, which prevents oil, steam, or moisture from wicking along the cable strands into the probe tip. This ensures reliable long‑term operation in steam turbines, gas turbines, and other high‑humidity, high‑temperature environments.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What type of cable is the Bently Nevada 84661-33?
        It is a two-conductor twisted, shielded 22 AWG armored cable.
        Does the Bently Nevada 84661-33 product come with a warranty?
        Yes, all products are covered by a one-year warranty provided by Apter Power.
        What connector is on the transducer end?
        A 2-socket moisture-resistant female connector.
        What are the minimum and maximum lengths of this 84661-33 cable?
        Cable lengths range from 3.0 ft (0.9 m) up to 96 ft (29 m).

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