{"product_id":"21504-000-020-10-02-bently-nevada-7200-series-proximity-probes","title":"21504-000-020-10-02 Bently Nevada 7200 Series Proximity Probes","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 21504-000-020-10-02\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e7200 Series\u003c\/strong\u003e Proximity Probes, operates as a dedicated hardware component for signal processing or control execution within industrial automation architectures. The module measures static and dynamic distances between the sensor tip and the observed target, generating an electrical response proportional to the physical gap clearance. It functions continuously without physical contact, providing direct measurement of shaft displacement, position metrics, and dynamic mechanical vibrations inside high-speed machinery housings.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown and Configuration Options\u003c\/h3\u003e\n\u003cp\u003eThe specific model code string determines the physical layout and electrical properties of the probe unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e21504\u003c\/strong\u003e: Core model designator for the 8 mm tip diameter 7200 Series proximity probe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e000\u003c\/strong\u003e: Indicates a 0.0 inch unthreaded case length configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e020\u003c\/strong\u003e: Designates a 2.0 inch total case length with standard 3\/8-24 threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\u003c\/strong\u003e: Specifies a total system cable length option of 1.0 metre (39 inches).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e02\u003c\/strong\u003e: Equips the cable end with a miniature male coaxial connector interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003e21504-000-020-10-02\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\u003e0.08 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 x 0.95 x 0.95 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Diameter\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Configuration\u003c\/td\u003e\n\u003ctd\u003eStandard Mount, 3\/8-24 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e80 mils (2.0 mm) standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e0 Hz to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy Current Scaling and Vibration Processing\u003c\/h3\u003e\n\u003cp\u003eThe hardware relies on calibrated eddy current probe scaling to map physical displacement to an electrical output without mechanical touch. Field deployment requires precise adjustment to establish the standard gap voltage (-10 VDC reference) point near the center of the 80 mils linear operating range. This positioning enables the monitoring system to record real-time rotor dynamics, capturing low-frequency axial shifts alongside high-frequency radial vibration components. The internal coil geometry optimizes vibration signal processing at the physical layer, while the electrical isolation of the probe tip shields the low-level signal paths against electromagnetic interference generated by nearby electrical equipment.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Bently Nevada 21504-000-020-10-02 Proximity Probe\u003c\/li\u003e\n\u003cli\u003e1 x Removable connector insulation sleeve\u003c\/li\u003e\n\u003cli\u003e1 x Thread protection cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eMechanical Mounting Limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngage standard threads with a minimum of 5 full thread turns inside the bracket block.\u003c\/li\u003e\n\u003cli\u003eVerify the installation clearance using physical feeler gauges before applying final torque values to locking nuts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCable Shielding and Grounding\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTerminate the outer coaxial shield layout exclusively at the proximitor instrument housing terminal.\u003c\/li\u003e\n\u003cli\u003eMaintain total electrical isolation between the coaxial connector shells and the physical machine grounding path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRouting Constraints\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not exceed the minimum allowable bend radius of 25.4 mm (1.0 inch) for the internal coaxial cable.\u003c\/li\u003e\n\u003cli\u003eSecure all loose cable segments using low-friction ties to eliminate dynamic whipping wear during machine operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eQ: Can this 7200 series probe component be hot-swapped while the proximitor sensor remains powered up?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the probe can be disconnected or replaced under live power without causing internal circuit failure, though downstream monitor alerts must be bypassed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: How does a non-magnetic target alloy affect the factory eddy current probe scaling matrix?\u003c\/p\u003e\n\u003cp\u003eA: Non-magnetic materials reduce the system scale factor, necessitating complete calibration readjustment via the intermediate conditioning transmitter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What occurs if the sensor tip makes actual physical contact with the rotating machinery shaft?\u003c\/p\u003e\n\u003cp\u003eA: Physical contact damages the ceramic tip face, permanently disrupting the internal coil geometry and rendering the transducer element inoperable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: Does the 1.0 metre system cable option permit inline field splicing or terminal block additions?\u003c\/p\u003e\n\u003cp\u003eA: No, splicing alters the strict internal coaxial impedance values, shifting calibration constants and distorting vibration signal processing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: How is the standard gap voltage (-10 VDC reference) verified at the installation point?\u003c\/p\u003e\n\u003cp\u003eA: Connect a digital multimeter to the proximitor test terminal and adjust the mechanical thread insertion depth until the target voltage level is reached.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What environmental limitations govern the connection joint inside the machine casing?\u003c\/p\u003e\n\u003cp\u003eA: The connector joint must be kept dry and shielded using the supplied insulation sleeve to block conductive fluid short-circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What is the backplane current load added by this sensor configuration?\u003c\/p\u003e\n\u003cp\u003eA: The probe draws no direct backplane current; it draws a maximum of 12 mA loop current supplied exclusively by the proximitor transmitter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: How do you identify a failure caused by a firmware compatibility fault in the linked monitor?\u003c\/p\u003e\n\u003cp\u003eA: Probes are fully passive analog components; they contain no digital firmware layers and are immune to system firmware revision mismatch blocks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46026041884845,"sku":"21504-000-020-10-02","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xian--3_91ccf81e-5cc0-443a-9380-f810688a8e78.jpg?v=1784119911","url":"https:\/\/www.maxwellplc.com\/products\/21504-000-020-10-02-bently-nevada-7200-series-proximity-probes","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}