{"product_id":"pr6422-012-050-epro-5mm-eddy-current-displacement-sensor","title":"PR6422\/012-050 EPRO 5mm Eddy Current Displacement Sensor","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Emerson EPRO PR6422\/012-050 operates as a critical non-contact sensing instrument within the MMS 6000 machinery protection ecosystem. Utilizing advanced eddy current operating principles, this compact 5mm probe measures dynamic radial shaft displacement, axial position, structural eccentricity, and rotational speed without ever touching the target asset. Maintenance engineers install this sensor directly into the bearing housings of critical steam, gas, and hydro turbines, high-pressure compressors, and large industrial pumps to capture sub-micron structural shifts before damage occurs.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe sensor system features a precision-wound tip enclosed in a rugged threaded housing, permanently coupled to an integrated extension lead.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEmerson (EPRO Brand \/ AMS Machinery Health)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePR6422\/012-050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% Brand New and Original\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Tip Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Measuring Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 1.0 mm (software extendable to 1.5 mm via signal converter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 V\/mm (406.4 mV\/mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatic Air Gap\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.8 mm nominal center point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDynamic Window\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/-0.5 mm measurement window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 20 kHz (-3 dB limits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Target Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFerromagnetic steel (specifically optimized for 42CrMo4 steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Surface Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 2500 m\/s tracking capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Target Shaft Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiameter must equal or exceed 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 meters standard length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Protection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterlocking stainless steel armor jacket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Mounting Thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM6x0.5 standard engineering thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-35 to +180 degrees Celsius (short excursions up to +200 degrees)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Cable Exposure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to +200 degrees Celsius maximum rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Drift Error\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLess than 2% per 100 K span (fully API 670 compliant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCase Pressure Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 10000 hPa (145 psi) continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShock \u0026amp; Vibration Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 g at 60 Hz at 25 degrees Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHazardous Approvals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eATEX and IECEx certified for explosion-proof safety zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSub-Micron Precision via High Sensitivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe specialized internal coil delivers an ultra-sharp sensitivity rating of 16 V\/mm (406.4 mV\/mil). This extreme resolution detects minute oil-film instabilities, shaft centerline deviations, and early-stage rotor unbalance long before traditional casing accelerometers register any change.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eArmored Resilience Against Hostile Environments:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA rugged, flexible stainless steel armor sleeve wraps the entire 5-meter internal signal lead. This shielding defends the copper core from hot lubricating oil pools, sharp metal shavings during installation, and harsh chemical cleaning solvents inside turbine enclosures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAPI 670 Compliant Thermal Stability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced internal temperature compensation limits thermal measuring drift to under 2% per 100 K. The probe maintains rock-solid calibration accuracy across a sweeping temperature window from -35 to +180 degrees Celsius, eliminating false trips caused by severe thermal cycling during turbine start-up and shutdown phases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Pressure Process Sealing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe robust tip assembly and mechanical bonding handle static fluid pressures up to 10,000 hPa (145 psi). This seals out moisture and oil migration, allowing direct installation into wet bearing housings, pressurized gearboxes, and flooded pump seals without risking signal degradation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich signal converters connect directly with the PR6422\/012-050 sensor?\u003c\/strong\u003eThe sensor interfaces seamlessly with standard EPRO driver modules and signal conditioners. It supports direct connection to the CON011, CON021, CON031, and CON041 series converters, which translate the raw impedance changes into standardized voltage or current signals for the central MMS 6000 machinery health monitor rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan this sensor track targets made from non-ferrous metals like aluminum or brass?\u003c\/strong\u003eThe factory factory-calibrates the PR6422\/012-050 for standard ferromagnetic steel (42CrMo4 target material). While eddy current technology works on any conductive material, non-ferrous targets change the electrical conductivity and magnetic permeability profiles. This modifies the output curve, requiring specialized recalibration or custom scaling adjustments inside the matching signal converter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the primary precautions when installing this probe via the M6 thread?\u003c\/strong\u003eDuring installation, you must maintain the nominal 0.8 mm air gap using precision feeler gauges or by monitoring the static DC voltage output from the converter. Ensure that the mounting bracket provides rigid support to prevent structural resonance, and leave at least 10 mm of clear space around the 5mm sensor tip to avoid cross-talk or false readings from surrounding housing walls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Epro","offers":[{"title":"Default Title","offer_id":43880488108131,"sku":"PR6422\/012-050","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/90_a63355e9-5eff-4942-a26c-256982717863.jpg?v=1765267732","url":"https:\/\/www.autocontrolglobal.com\/products\/pr6422-012-050-epro-5mm-eddy-current-displacement-sensor","provider":"AutoControl Global","version":"1.0","type":"link"}