{"product_id":"emerson-epro-con021-916-240-pr6426-010-140-eddy-current-displacement-system","title":"Emerson EPRO CON021\/916-240 + PR6426\/010-140 Eddy Current Displacement System","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson EPRO CON021\/916-240 + PR6426\/010-140\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCON021+PR6426\u003c\/strong\u003e displacement system, operates as a dedicated hardware component for high-precision shaft dynamics measurement within industrial condition monitoring networks. This matched probe and signal conditioning converter assembly tracks radial vibration and axial position against large-diameter rotating targets, providing high-bandwidth analog output for machinery protection logic.\u003c\/p\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\u003eCON021\/916-240 + PR6426\/010-140\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson EPRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~920 g (Combined system mass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eProbe: -35 to +175 deg C; Converter: -30 to +100 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSized by negative supply (-21 to -32 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProximity Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Range\u003c\/td\u003e\n\u003ctd\u003e24.0 mm (Extended); Static +\/- 4.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e0 to 20000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Sensitivity\u003c\/td\u003e\n\u003ctd\u003e2 V\/mm (50.8 mV\/mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Linearity\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 3.5 % (Converter); \u0026lt;= 1.5 % (Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Material\u003c\/td\u003e\n\u003ctd\u003eFerromagnetic Steel (42 Cr Mo 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20 (Converter); IP67\/High-Pressure Resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBently Nevada \/ VIBRO-METER Technical Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEddy-Current Probe Scaling:\u003c\/strong\u003e The PR6426 series utilizes specialized coil winding geometry to achieve a 2 V\/mm sensitivity over an extended 24 mm range. The CON021\/916-240 converter scales these impedance variations into a standardized negative-going output signal, maintaining the required precision for large-shaft turbomachinery monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGap Voltage Validation:\u003c\/strong\u003e Successful integration requires validation of the nominal air gap (approx. 5.5 mm). The converter output must be calibrated to the factory-defined negative voltage target at this nominal gap to ensure the system operates within the linear portion of its 24 mm extended range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor Dynamics and Signal Processing:\u003c\/strong\u003e The assembly supports a bandwidth up to 20,000 Hz, allowing for the detection of high-frequency vibration signatures. This high-speed response is essential for monitoring large-diameter shafts (\u0026gt;= 200 mm) where rotational speeds and surface velocities (up to 2,500 m\/s) require high-fidelity signal tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the system compatible with standard 24 VDC positive-ground power supplies?\u003c\/p\u003e\n\u003cp\u003eA: No. The CON021\/916-240 requires a negative DC power rail (-21 V to -32 V). This is a legacy requirement for API 670 compliant protection racks. Applying positive voltage to the supply input will prevent the oscillator circuit from initializing and may cause internal protection diode activation.\u003c\/p\u003e\n\u003cp\u003eQ: How does the shaft diameter affect system performance?\u003c\/p\u003e\n\u003cp\u003eA: This sensor is optimized for shaft diameters \u0026gt;= 200 mm. The large sensing face of the PR6426\/010-140 is designed to integrate the flux across a wide surface. Using this probe on small-diameter shafts will cause the electromagnetic field lines to wrap around the shaft geometry, causing significant sensitivity errors and non-linear output response.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and Alignment:\u003c\/strong\u003e Secure the probe into the bearing casing using the threaded stainless steel sleeve. Establish the 5.5 mm nominal air gap using a non-magnetic feeler gauge. Because this system is intended for high-speed machinery, ensure the probe locknuts are torqued to prevent mechanical backing-out caused by machine casing thermal expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Grounding:\u003c\/strong\u003e Terminate the coaxial LEMO connector securely. Route the PTFE-insulated cable through rigid, grounded metallic conduit to suppress high-frequency electromagnetic interference. The cable shield must be terminated at the monitoring rack's instrumentation earth bus only; ensure no conductive path exists between the probe housing and the instrumentation ground at the machine casing to avoid the formation of parasitic ground loops.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson Epro","offers":[{"title":"Default Title","offer_id":45149647405171,"sku":"CON021\/916-240+PR6426\/010-140","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/998943ccf92fe8b8dcfa86fa4521597f_6b0a1899-2893-4d01-bc7a-b48fad64c108.png?v=1783046976","url":"https:\/\/www.dcssupplier.com\/products\/emerson-epro-con021-916-240-pr6426-010-140-eddy-current-displacement-system","provider":"DcsSupplier Limited","version":"1.0","type":"link"}