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The 86691-00680-350-10 is part of the 7200 proximity transducer systems, which function as non-contacting gap-to-voltage transducer systems that measure static as well as dynamic distances between the probe tip and the observed target. The application includes requirements for non-contacting displacement measurement, with utilization for shaft position and vibration measurements on rotating and reciprocating machinery. This hardware operates with various machine types including gas and steam turbines, compressors, pumps, centrifuges, electric motors, and generators.
Non-Contact Gap Sensing: Eddy current dynamic/static measurement via high-frequency electromagnetic fields, zero physical contact
API 670 Compliance: Offers 80 mils (2 mm) linear range, fulfilling API 670 specifications
Temp Range: -35°C to +177°C, certified for machinery oil/moisture environment
The system offers 80 mils (2 mm) of linear measuring range and fulfills API 670 requirements. The complete loop consists of this probe with its integral coaxial cable, an extension cable, and a 7200 Proximitor. All 7200 proximity transducer systems, including the 86691-00680-350-10 configuration, are compatible with 3300, 9000, and 3500 Monitoring Systems.
The physical construction comprises a threaded stainless steel case body, an insulating non-metallic plastic tip, and an integrated coaxial cable. The instrument utilizes a high-frequency electromagnetic field to induce eddy current variations on the surface of the observed metal target, natively referencing AISI 4140 stee. Any modification in the physical gap between the probe tip and the shaft surface causes a corresponding impedance shift in the internal coil.
This analog impedance signal is transmitted through the integrated coaxial cable and an extension cable to a dedicated 7200 Series Proximitor, where it is converted into a continuous voltage output linearly proportional to the physical clearance.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 86691-00680-350-10 Vibration Probe 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.
Petroleum Refining and Chemical Industry
Used to monitor the casing absolute vibration of centrifugal compressors and high-pressure hydroprocessing feed pumps in catalytic cracking units, preventing mechanical fatigue and leakage of toxic or flammable media.
Thermal Power Generation
Monitors high-frequency absolute vibrations of steam turbines and generator bearing housings in coal- or gas-fired power plants to assess rotor unbalance, misalignment, or bearing wear in real time.
Iron, Steel and Heavy Metallurgy
Monitors the vibration of blast furnace blowers, large exhaust fans, and hot rolling mill main drive motors, withstanding harsh plant environments characterized by high temperatures, heavy dust, and strong shocks.
Nuclear Power Generation
Applied to the condition monitoring of main feedwater circulation pumps and turbine auxiliary systems outside the nuclear island, providing absolute vibration data that meet strict safety compliance to prevent sudden shutdowns.
Mining and Mineral Processing
Installed on the bearing pedestals of heavy semi-autogenous (SAG) mills, ball mill drive gear shafts, and large ore crushers to monitor vibration under high shock loads, providing early warnings for bearing fatigue cracking.
Pulp and Paper Industry
Monitors severe vibrations of high-speed paper machine dryer bearings and high-speed drive shafts in pulp refiners, preventing paper breaks and production line interruptions caused by bearing seizure.
When using the 86691-00680-350-10 probe, ensure its integrated coaxial cable and connectors are sealed against oil and moisture, and avoid pulling or sharply bending the cable. Maintain a single direction of rotation during calibration to eliminate mechanical backlash, and apply specific voltage-to-gap linearity curve corrections via the 7200 proximitor or monitoring system if the actual shaft material is not standard AISI 4140 steel.
The Bently Nevada 86691-00680-350-10 is a 7200 Series OEM-specific proximity transducer probe utilized for online, non-contact measurement of bearing radial vibration, axial position, and Keyphasor signals on rotating machinery, such as Frame 5 gas turbines. Its physical construction consists of a threaded stainless steel case, an insulating plastic tip, and an integrated coaxial cable, possessing a thermal resistance rating from -35°C to +177°C for continuous operation within internal machinery lubrication oil environments. During operation, the probe utilizes a high-frequency electromagnetic field to sense eddy current variations on the shaft surface, transmitting impedance signals to a dedicated 7200 Series Proximitor to convert them into voltage signals linearly proportional to the physical gap, supporting the operating status of rotating assets.
It is an industrial proximity transducer probe used to measure the relative dynamic gap between a rotating machine shaft and the probe tip.
Which product series does 86691-00680-350-10 belong to?
This product belongs to the Bently Nevada 7200 Series proximity transducer system, utilizing an OEM-specific part number.
What materials comprise the main structure of 86691-00680-350-10?
The probe tip is made of high-strength insulating plastic, and the threaded case body is constructed of stainless steel.
How to use products like 86691-00680-350-10?
Thread it into a machine casing or mounting bracket so that the probe tip faces the rotating shaft surface, and connect its integrated cable to a dedicated Proximitor.
What is the core physical operating principle of 86691-00680-350-10?
It utilizes high-frequency electromagnetic fields to induce eddy currents on the metal shaft surface; shaft displacement alters the probe coil impedance, which is converted into a voltage signal.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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