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21747-065-01

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The Bently Nevada 21747-065-01 is a heavy-duty, 6.5-meter armored extension cable engineered exclusively to maintain high-integrity signal pathways for the 7200 Series 8mm proximity transducer system.
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Technical specifications for 21747-065-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    21747-065-01
  • Product Type:
    Extension Cable
  • Cable Length:
    6.5 metres
  • Temperature Range (Cable):
    -34°C to +177°C (-30°F to +350°F)
  • Standards:
    API 670 (4th Edition)
  • Frequency Response:
    0 to 10 kHz (0 to 600,000 cpm)
  • Linear Measuring Range:
    0 to 80 mils (0 to 2 mm)
  • Sensitivity / Scale Factor:
    200 mV/mil (7.87 V/mm)
  • Accuracy:
    ±4% of full scale
  • Compliance:
    API 670 compliant
  • Weight:
    0.5 kg
  • Estimated shipping dimensions:
    1.8x5.6x33cm
  • 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 Operating Environment Compatibility Applications

Features:

  • Rugged Stainless Steel Braided Armor
  • Precise 6.5-Meter Electrical Calibration
  • Superior Industrial Environmental Sealing
The integrated metal armoring delivers exceptional crush resistance and slash protection, allowing the cable to endure harsh routing pathways across rough concrete floors and near moving plant machinery without risk of tearing.

Engineered with strict factory-preset capacitance and impedance, this 6.5-meter cable allows immediate field interchangeability without the time-consuming process of manual recalibration or bench tuning.

The cable is constructed with premium insulation materials that offer high-level resistance to corrosive lubricants, hot moisture, synthetic oils, and chemical washdowns common in power plants and refineries.

The 21747-065-01 Bently Nevada Coaxial extension cable may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 21747-065-01 Coaxial extension 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.
Bently Nevada 21747-065-01 Coaxial extension cable

General

  • Manufacturer GE / Bently Nevada
  • Model 21747-065-01
  • Condition New Original ready stock
  • Product Family 21747-040-00,21747-080-00,21747-065-00
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.
  • Extreme Thermal Endurance:Safely continuously operates in blistering temperatures up to +177;C,permitting close deployment right against hot bearing housings or steam pipelines.
  • Corrosive Hydrocarbon Exposure:The chemically inert outer jacket resists continuous splashing or complete submersion in harsh synthetic oils, crude oils,and chemical solvents.
  • High Mechanically Stressed Zones: Built explicitly for high-foot-traffic turbine decks and plant floor conduits where physical crushing by tools or machinery is a persistent daily threat.
  • High EMI/RFI Plant Fields:Shielded against massive electrical noise generated by nearby variable frequency drives (VFDs),high-voltage switchgears,and heavy generators.
  • Strict 7200 Series Legacy Match:Engineered exclusively for 7200 Series 8mm and 5mm non-contact proximity probe architectures.
  • Mandatory 9-Meter System Matching:Integrates perfectly with a 2.5m probe and a 9m 18745-04 Proximitor sensor; it is incompatible with 5-meter total system length Proximitors.
  • Interchangeable Field Swapping:Fully supports plug-and-play installation, allowing users to swap a damaged 21747-065-01 cable in the field without adjusting monitor calibrations.
  • API 670 Standard Harmonization:Seamlessly interfaces with modern machinery protection architectures (like the 3500 rack system) that accept classic 200 mV/mil analog inputs.
  • Turbine Radial Vibration Monitoring: Tracks the dynamic high-speed radial movement of steam and gas turbine shafts to prevent catastrophic rotor-to-stator contact.
  • Compressor Axial Thrust Measurement: Measures the critical micro-displacement of thrust collars in centrifugal and axial compressors to guard against massive thrust bearing failure.
  • Generator Eccentricity Detection: Detects mechanical bowing or thermal warping of massive generator rotors during slow-speed turning gear operations before start-up.
  • Industrial Pump Condition Tracking: Monitors structural and shaft stability in high-capacity boiler feed pumps and water cooling systems to reduce sudden plant downtime.
Description
The Bently Nevada 21747-065-01 is a premium-grade coaxial extension cable meticulously tuned to transmit non-contact eddy current signals without loss or distortion. Operating as a bridge in the 7200 Series transducer network, it feeds raw vibration data to the monitoring rack, transforming subtle micro-inch physical movements of a spinning shaft into precise voltage metrics.

What truly defines the durability of the Bently Nevada 21747-065-01 is its integrated stainless steel braided armor sleeve. This robust outer shielding serves as a mechanical barrier against extreme physical stress, shielding the internal delicate coaxial cable from heavy foot traffic, sharp tool strikes, or heavy abrasion during routine turbine deck maintenance.

SuppressionDesigned to prevent signal contamination, the Bently Nevada 21747-065-01 incorporates premium internal shielding that effectively isolates weak analog signals from harsh radio frequency (RFI) and electromagnetic (EMI) interference typical of industrial environments. Its specialized coaxial layout ensures low electrical capacitance, preventing signal degradation over the 6.5-meter span.

By ensuring seamless continuous monitoring, the Bently Nevada 21747-065-01 aids in early fault detection such as shaft misalignment, unbalance, or fluid-film bearing degradation. Implementing this reliable cable ensures your control room receives accurate data to act before unexpected mechanical thresholds cause billions in severe machine damage.

Alternative Names
2174706501 2I747-065-0I 21747-O65-O1 21747-045-01 21747-080-00 21747-065-00 21747-085-01 21747-040-00
Technical notes
When installing the Bently Nevada 21747-065-01, it must be strictly paired with a 2.5-meter 7200 Series probe and a 9.0-meter Proximitor sensor (such as model 18745-04) to successfully establish a standard 9-meter calibrated electrical loop. Modifying or shortening this 6.5-meter cable is strictly forbidden as it alters the inherent electrical capacitance, entirely corrupting the 200 mV/mil transducer calibration.
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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.
Since the 7200 series is classified as a mature/legacy line, does the 21747-065-01 still meet API safety standards?
Yes, the Bently Nevada 21747-065-01 fully complies with the core mechanical and accuracy mandates of the API 670 standard for machinery protection. It remains an essential, certified drop-in replacement piece for keeping existing plant infrastructure safe without executing highly expensive complete system overhauls.
My installation spot only needs 5 meters of cable. Can our technicians cut this 6.5m cable shorter to fit the conduit?
Absolutely not. The Bently Nevada 21747-065-01 relies on its exact 6.5-meter physical length to maintain the precise electrical capacitance required for calibrated 200 mV/mil eddy current measurement. Cutting or slicing this cable will completely ruin the calibration, rendering the entire vibration monitoring system blind or causing false trips.
Since the 7200 series is classified as a mature/legacy line, does the 21747-065-01 still meet API safety standards?
Yes, the Bently Nevada 21747-065-01 fully complies with the core mechanical and accuracy mandates of the API 670 standard for machinery protection. It remains an essential, certified drop-in replacement piece for keeping existing plant infrastructure safe without executing highly expensive complete system overhauls.

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