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86691-01780-1300-15

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The Bently Nevada 86691-01780-1300-15 is heavy-duty industrial proximity probe engineered for high-precision, non-contact displacement and vibration measurements in critical rotating machinery.
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Technical specifications for 86691-01780-1300-15

  • Manufacturer:
    Bently Nevada
  • Part Number:
    86691-01780-1300-15
  • Product Type:
    Proximity Transducer Probe
  • Stock:
    1
  • Frequency Response:
    0 Hz (DC) to 10 kHz
  • Operating Temperature:
    -40°C to +177°C (-40°F to +350°F)
  • Operating Voltage:
    -24VDC
  • Output Signal Options:
    4-20 mA or 0-10V
  • Standard Gap Voltage:
    -10 VDC
  • Interconnect Cable Protection:
    Stainless Steel Flexible Armor (SST)
  • Connector Type:
    Miniature coaxial connector with gold-plated pins
  • Hazardous Area Approvals:
    ATEX, IECEx, CSA
  • Weight:
    2 kg
  • Estimated shipping dimensions:
    30×30×15cm
  • Tariff Code:
    9031809090
  • 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 Monitoring & Control Safety & Compliance Applications

Features:

  • High-Fidelity Eddy-Current Performance
  • Ruggedized Armor Housing & Chemical Resilience
  • Interchangeable System Component Interfacing
The Bently Nevada 86691-01780-1300-15 provides continuous, non-contact measurement of radial shaft vibration and axial thrust position with zero mechanical wear. Its advanced tip chemistry maintains excellent magnetic stability, eliminating signal drift across high-velocity shaft rotations up to 10 kHz.

Equipped with a high-grade stainless steel jacket, the Bently Nevada 86691-01780-1300-15 cable shrugs off hot lubricating oil, synthetic fluids, and moisture. The robust mechanical shielding safeguards the internal coaxial cable from crushing, pulling, and electromagnetic interference (EMI).

The Bently Nevada 86691-01780-1300-15 conforms strictly to Bently Nevada's physical and electrical specifications for 8mm probe architectures. It allows drop-in field replacement without requiring structural modification to standard mounting blocks or complete rewiring of existing instrumentation racks.

The 86691-01780-1300-15 Bently Nevada Proximity Transducer Probe may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 86691-01780-1300-15 Proximity Transducer Probe 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 86691-01780-1300-15 Proximity Transducer Probe

General

  • Manufacturer GE / Bently Nevada
  • Model 86691-01780-1300-15
  • Condition New Original ready stock
  • Product Family 86691-00680-0350-10-00,86691-00680-0350-90-00,86691-01250-0400-15
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.
  • Real-Time Radial Vibration Analysis: Captures the dynamic X-Y orthogonal motion of rotating shafts, feeding raw waveform data to control systems to evaluate bearing oil film stability.
  • Axial Thrust Position Tracking: Constantly measures the microscopic axial displacement of the rotor shaft, safeguarding the machinery against catastrophic thrust bearing failures.
  • Eccentricity and Slow Roll Measurement: Monitors shaft bowing and thermal warp during turbine startup sequences (slow roll conditions), preventing machine damage before full speed is reached.
  • Direct Machinery Trip Integration: Operates as a fast-acting input for automated safety systems, enabling sub-second emergency shutdowns via 3500 monitors when vibration limits breach critical alarm thresholds.
  • API 670 Standard Alignment: Built in strict accordance with the American Petroleum Institute’s API 670 standard, ensuring full compliance for machinery protection systems across global refineries.
  • SIL (Safety Integrity Level) Suitability: Capable of integration into SIL 2 safety-instrumented functions, providing highly dependable fail-safe inputs for plant emergency shutdown loops.
  • Intrinsically Safe Containment: Designed to limit electrical energy dissipation at the probe head, ensuring that even under a fault condition, the device cannot ignite surrounding flammable vapors.
  • CE Mark & RoHS Conformity: Fully compliant with European health, safety, and environmental protection legislation, validating its electrical design integrity for global deployment.
  • Critical Turbo-Machinery Protection: The probe is universally deployed on steam turbines, multi-stage gas compressors, and industrial turbo-expanders to continuously observe shaft behavior under high rpm.
  • Hydroelectric Power Units: Applied on large-diameter vertical and horizontal hydro-turbines to measure lower guide bearing vibrations and structural shaft runout.
  • Industrial Fan & Blower Monitoring: Ideal for massive air-handling infrastructure in steel mills and chemical ventilation, capturing early unbalance caused by blade particulate buildup.
  • High-Speed Process Pumps: Utilized in high-pressure oil and water injection pumps to monitor thrust bearing wear and prevent catastrophic internal rotor-to-stator contact.
Description
The Bently Nevada 86691-01780-1300-15 is purpose-built to survive the harsh environments of petrochemical plants, power generation facilities, and heavy manufacturing. Utilizing advanced eddy-current technology, it translates the microscopic physical gaps between the probe tip and the target shaft into clear electrical signals, ensuring that early anomalies in rotating shafts are intercepted before costly failures occur.

Featuring an optimized structural design, the Bently Nevada 86691-01780-1300-15 addresses the physical mounting constraints often encountered in complex bearing housings. Its specific unthreaded-to-threaded sleeve ratio and tailored cable length allow mechanical engineers to position the sensor with perfect alignment, ensuring an ideal voltage gap calibration even within deeply recessed machinery bores.

To counter the destructive effects of oil submerge, corrosive chemicals, and sharp mechanical bends, the Bently Nevada 86691-01780-1300-15 is wrapped in a highly resilient, flexible stainless-steel armor. This protective shielding prevents signal degradation and physical sheath ruptures during routine maintenance and operation, significantly extending the sensor’s operational life.

The Bently Nevada 86691-01780-1300-15 operates in perfect synergy with industry-standard continuous monitoring frameworks, such as the Bently Nevada 3500 and 3300 systems. By delivering clean, low-noise analog signals directly to the matching Proximitor sensor, it empowers automation architectures to execute millisecond-level automated trips and comprehensive trend analysis.
Alternative Names
86691 01780 1300 15 86691-O178O-13OO-15 8669I-0I780-I300-I5 86691-01780-1300-15-00 86691-01250-0400-15 86691-00680-0350-90-00
Technical notes
The Bently Nevada 86691-01780-1300-15 must be properly matched with a compatible 3300 XL series Proximitor sensor and calibrated using a 4140 steel target to guarantee a linear scale factor of 200 mV/mil (7.87 V/mm). Proper installation requires precise gap verification using a digital voltmeter to ensure the Bently Nevada 86691-01780-1300-15 operates squarely within its defined linear linear range.
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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.
Which specific Proximitor sensor models are electrically compatible with the Bently Nevada 86691-01780-1300-15?
The Bently Nevada 86691-01780-1300-15 is fully compatible with the Bently Nevada 3300 XL 8mm Proximitor Sensor series (e.g., 330180). It must be integrated into a matched system length configuration (typically 5-meter or 9-meter total electrical length) to maintain the calibrated 200 mV/mil scaling output.
How do engineers verify the I/O signal calibration and linear range limits of the Bently Nevada 86691-01780-1300-15 during commissioning?
Verification requires measuring the DC voltage across the Proximitor’s output terminal. Adjust the mechanical gap of the Bently Nevada 86691-01780-1300-15 until the output reads approximately -10.0 VDC, which corresponds to the mid-point of its 80-mil linear range, spanning from -2.0 VDC (close gap) to -18.0 VDC (far gap).
Can the Bently Nevada 86691-01780-1300-15 be integrated into a third-party PLC or DCS without a Bently Nevada monitor rack?
Yes, but the Bently Nevada 86691-01780-1300-15 cannot connect directly to a standard analog input card. It must first pass through a Proximitor sensor, which translates the gap into a dynamic voltage signal; this voltage or an accompanying 4-20mA transmitter module can then be terminated into third-party I/O modules.
What are the environmental limits and fluid submerge restrictions for the Bently Nevada 86691-01780-1300-15 probe tip?
The Bently Nevada 86691-01780-1300-15 is rated for continuous exposure to industrial lubricants and can be completely submerged in oil under temperatures up to +177°C. However, it should not be exposed to highly concentrated acids or corrosive gases that attack the PPS (Polyphenylene Sulfide) tip material.
What installation steps prevent the Bently Nevada 86691-01780-1300-15 cable from sustaining damage during high-vibration machinery operations?
During installation, the Bently Nevada 86691-01780-1300-15 cable must be secured with conduit clamps and routed through dedicated junction boxes. A minimum bend radius of 25.4 mm (1 inch) must be observed for the armored cable to avoid crimping the internal coaxial wire.