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      Bently Nevada 84661-18
      Bently Nevada 84661-18
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
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      84661-18

      Standard Armored Interconnect Cable
      In Stock
      Ships by Friday, August 7
      Fast Shipping Available

      Product Information:

      The 84661-18 is a standard stainless steel armored dual-core piezoelectric velocity sensor interconnect cable manufactured by Bently Nevada. It is primarily used as a dedicated signal transmission channel to transmit absolute housing vibration velocity signals acquired by the 330500 Velomitor piezoelectric velocity sensor or the 330750/330752 High Temperature Velomitor System (HTVS) completely and without loss to downstream mechanical protection monitoring instruments or control systems.

      The Bently Nevada 84661-18 is widely used for online monitoring and over-limit protection of housing vibration in fans, pumps, medium-speed gearboxes, and various industrial rotating machinery. This model uses a clear numerical code to define its hardware configuration: the prefix 84661 indicates that it is a stainless steel armored twisted-pair shielded cable; the suffix -18 indicates that the cable length is fixed at 18 feet (approximately 5.5 meters).

      The Bently Nevada 84661-18 cable features differentiated and highly compatible interfaces at both ends: one end is a two-hole moisture-proof female connector for a tight connection to the airtight plug on top of the speed sensor, isolating it from external moisture; the other end is pre-installed and crimped with a ring terminal for easy direct connection to the monitoring cabinet's wiring terminals.

      Warranty Policy
      We provide 1-year warranty for all remaining parts.
      The warranty period is 1-year warranty 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 1-year warranty 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.
      Shipping Methods
      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
      Moore Automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for 84661-18

      • Manufacturer:
        Bently Nevada
      • Product Category:
        TSI System
      • Estimated shipping dimensions:
        10 x 15 x 20.1 cm
      • Weight:
        0.2 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Product Type:
        Interconnect Cable
      • Category Series:
        330505 series
      • Standard Cable Lengths:
        18 ft (5.48 m)
      • Sensitivity:
        20 mV/mm/s (508mV/in/s) ±10%
      • Velocity Range:
        102 mm/s (4 in/s) peak
      • Amplitude Linearity:
        ±3%—102 mm/s (4 in/s) peak
      • Output Bias Voltage:
        -12 ±1 VDC
      • Shock Survivability:
        981 m/s2 (100g) peak
      • Relative Humidity:
        To 100% non-submerged; case is hermetically sealed
      • Case material:
        300 series stainless steel
      • Stock:
        120
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      Alternative Names

      8466118 84661 18 8466I-I8 84661-06 84661-08 84661-10 84661-20 84661-30 84661-35 84661-08 84661-50 84661-60 84661-88

      Information

      Overview Manuals Basic Info Ordering Info Environmental Limits

      Features:

      • Standard Armored Interconnect Cable
      • 330505 Low Frequency Velocity Sensor
      • Bently Nevada Machinery Condition Monitoring
      The Bently Nevada 330505 Low Frequency Velocity Sensor is specifically designed for hydroelectric turbines where slow rotating speeds require detecting a low signal to noise ratio. It detects vibration of the stator core, stator frame, and bearing housing supports. It is designed to provide early warning of pending machinery problems and to help you diagnose problems before they become serious.

      The sensor measures absolute vibration within the 0.5Hz to 1.0kHz range. Its two-wire design uses moving-coil technology and embedded signal conditioning circuitry to provide a voltage output directly proportional to the vibration velocity. Stator core and stator frame vibration can cause fretting and damage to the winding insulation. To detect these problems before serious damage occurs, mount a 330505 sensor on the outer diameter of the stator core and frame.

      The 84661-18 Bently Nevada Standard Armored Interconnect Cable may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
      Bently Nevada 84661-18 Standard Armored Interconnect Cable Manuals(Datasheets), 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.
      • Model: 84661-18
      • Warranty: One-year warranty
      • Condition: Brand new, original, in stock
      • Product Family: 330505 Low Frequency Velocity Sensor
      Interconnection Cables
      Standard Cable Lengths
       
      Minimum length 3 ft (0.91 m);
      maximum length 96 ft (29 m).
       
      Feet Meters (approximate)
      6 ft 1.8 m
      8 ft 2.4 m
      10 ft 3.0 m
      12 ft 3.6 m
      15 ft 4.5 m
      17 ft 5.0 m
      20 ft 6.0 m
      25 ft 7.6 m
      30 ft 9.0 m
      33 ft 10.0 m
      50 ft 15.2 m
      99 ft 30.0 m
      This protective hardware is designed for harsh industrial environments, excelling in both physical protection and signal integrity: its internal core consists of a shielding layer and 22 AWG (0.382 mm²) twisted-pair cable, completely encased in a robust stainless steel armored flexible tube. This structure allows it to withstand the mechanical and physical stresses, sharp scratches, and heavy oil corrosion of industrial environments within a wide operating temperature range of -29°C to 121°C. Simultaneously, the highly efficient shielding layer effectively blocks strong electromagnetic interference (EMI) generated by high-voltage cables and frequency converters within the factory, ensuring the accuracy and stability of dynamic vibration signals.

      Manuals

      Technical notes

      The Bentley Nevada 84661-18 is an 18-foot (approximately 5.5-meter) standard armored interconnect cable designed for Velomitor piezoelectric speed sensors and industrial monitor connections. Its dual-core twisted, fully shielded construction provides high-integrity vibration signal transmission in harsh industrial environments ranging from -29°C to 121°C. Equipped with stainless steel armor for resistance to physical damage, the cable features moisture-proof female connectors and ring terminals, making it suitable for high-reliability applications.

      • Product Lifecycle Stage

        Obsolete/Discontinued by OEM

        Although this model is discontinued, Moore Automated continues to provide high-quality Bently Nevada replacement modules and spare parts for legacy systems. Our reliable solutions help reduce unplanned downtime, extend equipment life, and ensure continuity of industrial operations.

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      FAQ

      View All Faqs
      • How does the 84661-18 utilize advanced eddy current sensing technology to provide high-precision non-contact shaft displacement measurement for critical rotating machinery?
        The 84661-18 is a precision proximity probe designed specifically for condition monitoring of industrial machinery. It employs non-contact eddy current measurement technology, enabling continuous measurement of shaft vibration, radial displacement, eccentricity, and relative position with superior accuracy and long-term stability.
      • Why is the 84661-18 considered a mission-critical short-range probe solution for machine protection applications compliant with API 670 standards?
        The 84661-18 provides continuous, non-contact shaft displacement monitoring, enabling early identification of issues such as rotor imbalance, shaft misalignment, bearing degradation, and mechanical instability before catastrophic equipment failure.
      • How does the 84661-18 maintain excellent signal linearity and electromagnetic compatibility in noisy industrial environments?
        The 84661-18 employs precision electromagnetic sensing technology, optimized cable shielding, and factory-controlled calibration processes to minimize electromagnetic interference, thereby maintaining accurate signal transmission.
      • How does 84661-18 enhance predictive maintenance through continuous real-time shaft vibration and displacement monitoring?
        84661-18 continuously acquires shaft motion information, enabling maintenance personnel to detect developing mechanical faults before equipment performance is affected.
      • Why do engineers need to verify the compatibility of 84661-18 with extension cables, signal conditioners, proximity monitors, and machinery protection systems before commissioning?
        Proper system integration ensures that 84661-18 maintains its specified measurement accuracy, signal linearity, and long-term operational reliability.
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      Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.
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