{"product_id":"21504-000-012-05-02-bently-nevada-7200-series-proximity-probe","title":"21504-000-012-05-02 Bently Nevada 7200 Series Proximity Probe","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 21504-000-012-05-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e21504\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProximity Probe utilized to execute noncontacting static and dynamic displacement measurements across 7200 Series Proximity Transducer Systems platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eMechanical Thread \u0026amp; Cable Configurations\u003c\/h3\u003e\n\u003cp\u003eThe physical options for this 8 mm standard mount proximity probe are designated as follows:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e21504\u003c\/strong\u003e: Base model number for the 7200 Series 8 mm standard mount proximity probe (3\/8-24 UNF thread).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-000\u003c\/strong\u003e: Specifies an unthreaded length of 0.0 in.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-012\u003c\/strong\u003e: Configures a threaded case length of 1.2 in.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-05\u003c\/strong\u003e: Selects a total probe cable length of 0.5 m (20 in).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-02\u003c\/strong\u003e: Integrates a miniature male coaxial connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e21504-000-012-05-02\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.10 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 x 1.3 x 117.0 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-35 to +125 deg C (probe tip and integrated cable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePassive transducer component (driven by associated Proximitor Sensor loop)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLinear Measuring Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 mm (80 mils)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProbe Tip Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.0 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCase Thread Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\/8-24 UNF-2A standard\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStainless steel body with polyphenylene sulfide (PPS) tip\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Compliance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDesigned to conform to API 670 machinery protection standards\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnector Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMiniature male coaxial connector\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Rotor Dynamics Integration\u003c\/h3\u003e\n\u003cp\u003eThe 21504-000-012-05-02 probe operates within an active RF loop, driving high-frequency eddy-current probe scaling to monitor dynamic changes in the physical gap. When matched with a calibrated 7200 Series Proximitor Sensor and extension cable, the probe tip projects a magnetic field onto the rotating shaft. This field reacts to target movement, letting the monitoring system track fast-moving rotor dynamics like shaft vibration, position, and eccentricity.\u003c\/p\u003e\n\u003cp\u003eSetting the proper gap voltage validation is necessary to ensure linear scaling across the complete 2.0 mm (80 mils) measuring range. Adjusting the physical installation depth of the 3\/8-24 thread until the Proximitor output registers a target of -10 VDC places the target in the center of the sensor's linear range. This alignment minimizes signal clipping and ensures effective cross-talk suppression in multi-probe setups.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Bently Nevada 21504-000-012-05-02 Proximity Probe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2 x Hexagonal mounting locknuts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVerifying Thread Engagement and Locking\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThread the probe into the mounting bracket or machine casing. Ensure the hex locknuts are torqued properly to prevent the probe from drifting due to casing vibration during startup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulating the Miniature Coaxial Connector\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe miniature male coaxial connector must remain isolated from the machine ground. Slide a high-temperature silicone sleeve or connector protector over the connection to prevent ground loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnforcing Cable Bend Radius Limits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnsure the integrated 0.5-meter coaxial cable does not bend sharper than a 25.4 mm (1.0 in) radius. Sharp bends alter the electrical impedance of the coax, leading to calibration errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the physical gap calibrated for this specific probe model?\u003c\/p\u003e\n\u003cp\u003eThe probe is rotated within its 3\/8-24 mount while measuring the associated Proximitor loop output until the target gap voltage of -10 VDC is reached.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs this probe compatible with 3300 XL Series Proximitor Sensors?\u003c\/p\u003e\n\u003cp\u003eNo, the 21504-000-012-05-02 is a legacy 7200 series probe and must be paired with 7200 series Proximitor sensors for accurate scaling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the probe casing seal against high oil pressure inside bearing housings?\u003c\/p\u003e\n\u003cp\u003eThe threaded body seals standard splash oil, but high-pressure applications require a dedicated, externally sealed probe housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this 0.5-meter probe be connected directly to the monitoring rack?\u003c\/p\u003e\n\u003cp\u003eNo, the probe's 0.5-meter lead must be joined with a compatible 7200 series extension cable to reach the total configured system length of 5.0 or 9.0 meters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the target material used for the standard factory calibration?\u003c\/p\u003e\n\u003cp\u003eThe system is calibrated for high-permeability AISI 4140 steel targets; alternative target metals will require re-scaling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat occurs if the probe tip comes into physical contact with the rotating shaft?\u003c\/p\u003e\n\u003cp\u003eContact will cause immediate physical damage to the PPS tip and internal coil, resulting in a loop fault or a \"Not OK\" status.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the miniature coaxial connector be repaired in the field?\u003c\/p\u003e\n\u003cp\u003eStandard coaxial connectors can be re-terminated with specialized Bently Nevada crimping tools, though factory-molded replacements are recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does signal cross-talk occur, and how is it prevented?\u003c\/p\u003e\n\u003cp\u003eCross-talk happens when two probe tips are mounted too close together. Maintain at least a 40 mm spacing between adjacent 8 mm probe tips to suppress interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025931227309,"sku":"21504-000-012-05-02","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/xian11_8951da78-7fdb-46f6-8b75-9ee0f4581351.jpg?v=1784280431","url":"https:\/\/www.maxwellplc.com\/ga\/products\/21504-000-012-05-02-bently-nevada-7200-series-proximity-probe","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}