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    Apter Power specializes in distributing certified, hard-to-find 86691-00680-350-10 replacement hardware, providing plant operators with a highly reliable source for obsolete parts to prevent costly full-drive retrofits.

86691-00680-350-10

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The Bently Nevada 86691-00680-350-10 is a eddy current proximity probe designed for heavy industrial machinery condition monitoring and TSI systems.
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Technical specifications for 86691-00680-350-10

  • Manufacturer:
    Bently Nevada
  • Part Number:
    86691-00680-350-10
  • Product Type:
    Radial & Displacement Vibration Probe
  • Stock:
    1
  • Measurement Modes:
    Radial Vibration, Axial Thrust Position, Eccentricity, Speed
  • Integral Cable Length:
    1.5 Meters
  • Operating Temperature:
    -52 °C to +177 °C (-62 °F to +350 °F)
  • Storage Temperature:
    -52 °C to +177 °C (-62 °F to +350 °F)
  • Relative Humidity Limits:
    100% Condensing (Probe tip and case are hermetically sealed)
  • System Input Voltage:
    -18 Vdc to -26 Vdc (Supplied via Proximitor Sensor loop)
  • Operating Current:
    < 15 mA (Typical loop current consumption)
  • Weight:
    0.2 kg
  • Estimated shipping dimensions:
    20x20x2cm
  • 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 Applications Monitoring & Control Operating Environment

Features:

  • High-Precision Non-Contact Eddy Current Sensing Topology
  • Hermetically Sealed Industrial Structural Housing
  • Low-Impedance Coaxial Integration for Legacy Loops
The Bently Nevada 86691-00680-350-10 incorporates an advanced non-contact sensing configuration that eliminates physical mechanical wear, providing continuous, sub-micron resolution gap data for rotating shafts without altering machine dynamics or risking component friction damage.

Featuring a premium chemical-resistant coating, the Bently Nevada 86691-00680-350-10 is engineered to perform reliably within corrosive processing environments, maintaining high scale-factor stability even under 100% condensing humidity and direct exposure to synthetic machine lubricants.

The Bently Nevada 86691-00680-350-10 utilizes an ultra-stable 1.5-meter integral cable designed with tight impedance parameters, which ensures plug-and-play field interchangeability and accurate signal calibration when tied to original 7200 or 3300 series Proximitor setups.

The 86691-00680-350-10 Bently Nevada Radial & Displacement Vibration Probe may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 86691-00680-350-10 Radial & Displacement Vibration 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 86691-00680-350-10 Radial & Displacement Vibration Probe

General

  • Manufacturer GE / Bently Nevada
  • Model 86691-00680-350-10
  • Condition New Original ready stock
  • Product Family 86691-00680-0350-90-05,86691-01780-1300-15,86691-01250-0400-15
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.
  • Steam and Gas Turbine Transducer Systems: Installed on high-capacity energy generation turbines for continuous critical shaft position tracking.
  • Centrifugal Compressor Assemblies: Used to detect surge or misalignment phenomena inside high-pressure gas processing lines.
  • Fluid-Film Bearing Vibration Diagnostics: Placed directly inside or near oil-lubricated hydrodynamic journal bearings for radial clearance monitoring.
  • Heavy Industrial Boiler Feed Pumps: Monitors vibration profiles in water supply infrastructure to prevent critical cavitation damage.
  • Radial Dynamic Vibration Processing: Delivers dynamic raw AC voltage waves to monitoring modules for orbital and trend analysis.
  • Axial Thrust Position Tracking: Measures static DC gap changes to monitor axial thrust and protect against internal stator-rotor contact.
  • System 1 Diagnostic Platform Integration: Interoperates smoothly with System 1 software to provide automated machinery health alerts.
  • Automatic Machinery Safety Trip Loop: Supplies continuous inputs to hardware trip modules to execute safety shutdowns when vibration thresholds are breached.
  • Extreme Mechanical Temperature Endurance: Operates reliably across a broad range from -52 °C up to +177 °C, making it suitable for hot turbine housings.
  • High Chemical and Lubricant Tolerance: Resists degrading effects from continuous exposure to synthetic turbine oils, grease, and processing fluids.
  • Harsh Industrial Humidity Resistance: Maintains less than a 3% change in Average Scale Factor (ASF) under high-humidity conditions per international standards.
  • Corrosive Processing Atmosphere Isolation: Features a robust case assembly that protects sensitive internal coils from corrosive environments like H2S or ammonia gas.
Description
The Bently Nevada 86691-00680-350-10 leverages advanced eddy current technology to capture dynamic shaft motion and static position information, feeding crucial telemetry into machinery protection architectures. It ensures absolute mechanical precision for high-speed rotating assets by tracking micro-level surface displacements under extreme operational conditions.

Engineered with an robust mechanical structure, the Bently Nevada 86691-00680-350-10 functions optimally near high-frequency industrial interferences, remaining unaffected by oil, water, or general chemical contaminants on the observed conductive surface. Its factory-calibrated 1.5-meter integral cable configuration minimizes impedance mismatch and signal attenuation across long-distance monitor routing.

As an essential component for legacy Bently Nevada instrumentation arrangements, the Bently Nevada 86691-00680-350-10 acts as a reliable direct-replacement option that eliminates the need for expensive system overhauls. It plays a critical role in early machine fault diagnostics, preventing unexpected plant blackouts and catastrophic structural equipment breakdowns.
Alternative Names
8669I-00680-350-I0 86691-OO68O-35O-1O 8669I-OO68O-35O-IO 86691-00680-0350-90-05 86691-01780-1300-15
Technical notes
The Bently Nevada 86691-00680-350-10 vibration probe must be installed with rigid bracket isolation to maintain exact physical gap alignment and avoid mechanical cross-talk with adjacent magnetic fields. Proper calibration linearity requires pairing the Bently Nevada 86691-00680-350-10 with a matching Bently Nevada Proximitor sensor tuned precisely for AISI 4140 steel targets.
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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.
What is the recommended Proximitor and extension cable matching matrix for the Bently Nevada 86691-00680-350-10 to prevent electrical scale factor distortion?
The Bently Nevada 86691-00680-350-10 must be matched with specific legacy series Proximitors that support a total system length specification (typically 5-meter or 9-meter total system tuning). Because the Bently Nevada 86691-00680-350-10 features a 1.5-meter integral cable, you must utilize a corresponding extension cable length (e.g., a 3.5-meter or 7.5-meter cable) to reach the exact required total electrical length, maintaining calibration stability and preventing scale factor distortion.
How does the Bently Nevada 86691-00680-350-10 handle diagnostic depth when paired with modern 3500/42M Proximitor I/O modules?
When integrated into a modern system via compatible Proximitor loops, the Bently Nevada 86691-00680-350-10 supports complete loop-integrity checking, identifying circuit anomalies like "Not OK" conditions, open circuits, or shorted cables. The Bently Nevada 86691-00680-350-10 provides a raw analog voltage signal that enables the monitoring rack to execute advanced diagnostics, including cross-talk suppression and gap voltage verification.
What are the exact I/O wiring rules and parameters to avoid electrical interference on the Bently Nevada 86691-00680-350-10 signal line?
The coaxial connection of the Bently Nevada 86691-00680-350-10 should be routed through dedicated conduit systems away from high-voltage AC cables. The outer shield of the Bently Nevada 86691-00680-350-10 field extension circuit must be grounded cleanly at the monitor rack side only, preventing ground loops from introducing noise into the dynamic vibration signal.
What are the primary environmental and physical installation limits for the Bently Nevada 86691-00680-350-10 probe tip within a high-pressure bearing housing?
The Bently Nevada 86691-00680-350-10 is built for extreme environments, but the probe tip must not be subjected to physical contact with the shaft during machine operation. The mechanical housing of the Bently Nevada 86691-00680-350-10 safely resists oil submersion, but engineers must check thread clearance and verify that the case is not over-torqued during installation to preserve the integrity of the internal seal.

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