{"product_id":"21505-00-40-10-02-bently-nevada-proximity-probe-7200-series","title":"21505-00-40-10-02 Bently Nevada Proximity Probe 7200 Series","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 21505-00-40-10-02\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e21505\u003c\/strong\u003e Proximity Probe, operates as a dedicated hardware component for non-contacting displacement and vibration measurements within 7200 Series Transducer Systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Code Definitions\u003c\/h3\u003e\n\u003cp\u003eThe mechanical configurations of this 7200 Series proximity probe are defined by the following suffix options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e21505\u003c\/strong\u003e: Base model designation for the 5 mm \/ 8 mm Standard Mount Proximity Probe with 3\/8-24 UNF threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-00\u003c\/strong\u003e: Selects an unthreaded case length of 0.0 inches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-40\u003c\/strong\u003e: Configures an overall case length of 4.0 inches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-10\u003c\/strong\u003e: Selects a total cable length of 1.0 meter (39 inches).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-02\u003c\/strong\u003e: Selects a miniature male coaxial connector interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e21505-00-40-10-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.06 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e55.0 x 1.5 x 1.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 to +177 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e-17.5 VDC to -26 VDC at 12 mA maximum current draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e2.0 mm (80 mils)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e0 Hz (DC) to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Thread Size\u003c\/td\u003e\n\u003ctd\u003e3\/8-24 UNF-2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnthreaded Length\u003c\/td\u003e\n\u003ctd\u003e0.0 in (0.0 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Case Length\u003c\/td\u003e\n\u003ctd\u003e4.0 in (101.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1.0 m (39 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Type\u003c\/td\u003e\n\u003ctd\u003eMiniature male coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Rotor Dynamics Integration\u003c\/h3\u003e\n\u003cp\u003eThe 21505-00-40-10-02 probe utilizes eddy-current probe scaling to monitor dynamic changes in the distance between the probe tip and the rotating shaft. The system relies on a gap-to-voltage transducer loop where target proximity changes directly alter the high-frequency magnetic field, generating a proportional voltage output. For accurate rotor dynamics mapping, a gap voltage validation must be executed during physical installation.\u003c\/p\u003e\n\u003cp\u003eAdjusting the probe position until the sensor loop generates a nominal target voltage of -10 VDC centers the sensor precisely in its 80 mil (2 mm) linear range. This setup minimizes signal distortion and maintains the integrity of high-frequency TSI (Turbine Supervisory Instrumentation) data paths.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Bently Nevada 21505-00-40-10-02 Proximity Probe\u003c\/li\u003e\n\u003cli\u003e2 x 3\/8-24 Hexagonal jam nuts\u003c\/li\u003e\n\u003cli\u003e1 x Lock washer\u003c\/li\u003e\n\u003cli\u003e1 x Plastic thread protection sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThread Engagement and Torquing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnsure clean, debris-free threads prior to insertion. The 4.0 inch threaded body must be tightened with the provided jam nuts to 35 ft-lb (48 N-m) of torque to prevent loosening from continuous machinery casing vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eZero Unthreaded Length Clearance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSince this model features a 0.0 inch unthreaded length option, the threads extend to the base of the probe tip. Avoid bottoming out the threaded body against internal shoulders or counterbores within the bracket assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCable Routing and Connection Security\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKeep the coaxial cable clear of sharp metal edges and maintain a minimum bend radius of 25.4 mm (1.0 inch). Secure the miniature male coaxial connector to the extension cable and shield the connection with a Teflon connector insulator sleeve to prevent grounding faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the target gap voltage validated during the installation of this 7200 series probe?\u003c\/p\u003e\n\u003cp\u003eHook up a voltmeter to the Proximitor loop and rotate the probe in its mounting thread until the output matches the nominal -10 VDC calibration target.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this 7200 Series probe be used with a 3300 XL Proximitor sensor?\u003c\/p\u003e\n\u003cp\u003eNo, 7200 Series probes are electrically tuned to 7200 Proximitors and are incompatible with 3300 XL electronics due to differing scale factor profiles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat occurs if the 1.0 meter cable is bent past its minimum bend radius?\u003c\/p\u003e\n\u003cp\u003eBending the coaxial cable too tightly can damage the internal copper shield and core, leading to impedance mismatch or calibration drift in the loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this model feature physical mechanical armor on the cable?\u003c\/p\u003e\n\u003cp\u003eNo, this specific configuration relies on an unarmored coaxial cable jacket and requires conduit or external trays for mechanical routing protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the 21505 probe body capable of withstanding exposure to high-pressure oil?\u003c\/p\u003e\n\u003cp\u003eThe front tip of the probe is sealed against process gases and fluids, but the rear cable exit is unsealed and must not be submerged.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat target material is required to ensure accurate eddy-current scaling?\u003c\/p\u003e\n\u003cp\u003eThe system is calibrated for AISI 4140 steel. Using other metals will alter the linear range and require custom system calibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the frequency response rated down to 0 Hz (DC)?\u003c\/p\u003e\n\u003cp\u003eThe 0 Hz (DC) measurement capability is required to detect slow thrust displacement, thermal expansion, and static shaft position offsets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow should the miniature male coaxial connector be handled to prevent signal loss?\u003c\/p\u003e\n\u003cp\u003eEnsure the connector contacts remain free of oil, moisture, and grease; use clean contact cleaner before mating the connector with the extension cable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025645719725,"sku":"21505-00-40-10-02","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xian--2_e4ecf2e0-ac48-4734-ba7d-e6812f481aaa.jpg?v=1784278104","url":"https:\/\/www.maxwellplc.com\/ru\/products\/21505-00-40-10-02-bently-nevada-proximity-probe-7200-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}