{"product_id":"bently-nevada-3500-25-125800-01-keyphasor-i-o-module-pwa-184389-01","title":"Bently Nevada 3500\/25 125800-01 Keyphasor I\/O Module | PWA 184389-01","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3500\/25 125800-01\u003c\/strong\u003e is a Keyphasor I\/O Module with internal terminations for the 3500\/25 Enhanced Keyphasor system. The module provides the rear I\/O interface for Keyphasor transducer inputs and buffered Keyphasor signal outputs.\u003c\/p\u003e\n\u003cp\u003eThe 125800-01 is a non-isolated I\/O configuration. It accepts signals from proximity probe transducers or magnetic pickups when used with the associated 3500\/25 Keyphasor Module. Each Keyphasor channel supports transducer excitation of -24 Vdc at up to 40 mA.\u003c\/p\u003e\n\u003cp\u003eThe module provides internal termination for field connections. Buffered Keyphasor outputs are also available at the rear of the rack through Euro Style connections.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003ePWA 184389-01\u003c\/strong\u003e identification is associated with this 125800-01 assembly. For replacement procurement, 125800-01 should remain the primary Bently Nevada spare part number.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eKeyphasor I\/O Module for the Bently Nevada 3500\/25 system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal termination configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNon-isolated Keyphasor I\/O design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports up to two Keyphasor transducer input channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAccepts proximity probe or magnetic pickup input signals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInput signal range of +0.8 V to -21.0 V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e-24 Vdc transducer supply at 40 mA maximum per channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRear buffered Keyphasor signal outputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEuro Style rear connections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOccupies one full-height rear rack slot\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePWA identification 184389-01\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eKeyphasor transducer termination in 3500 machinery protection racks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShaft rotational speed reference measurement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePhase reference signal acquisition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1X vibration amplitude and phase measurement support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProximity probe Keyphasor applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMagnetic pickup signal input\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReplacement of existing 125800-01 internal-termination I\/O modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003e3500\/25 Enhanced Keyphasor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e125800-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWA\u003c\/td\u003e\n\u003ctd\u003e184389-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eKeyphasor I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Type\u003c\/td\u003e\n\u003ctd\u003eInternal Terminations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eNon-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 2 transducer signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Transducers\u003c\/td\u003e\n\u003ctd\u003eProximity probes or magnetic pickups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Requirement\u003c\/td\u003e\n\u003ctd\u003e1 full-height rear slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eInput\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e+0.8 V to -21.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e21.8 kohm minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Input Frequency\u003c\/td\u003e\n\u003ctd\u003e1 to 1,200,000 cpm (0.017 to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Multi-event Input Frequency\u003c\/td\u003e\n\u003ctd\u003e20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassive Magnetic Pickup Requirement\u003c\/td\u003e\n\u003ctd\u003eShaft speed greater than 200 rpm (3.3 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eTransducer Conditioning\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Threshold Minimum Signal\u003c\/td\u003e\n\u003ctd\u003e2 V peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Threshold Minimum Speed\u003c\/td\u003e\n\u003ctd\u003e120 rpm (2 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Threshold Range\u003c\/td\u003e\n\u003ctd\u003e0 to -20 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Threshold Minimum Signal\u003c\/td\u003e\n\u003ctd\u003e500 mV peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Threshold Minimum Frequency\u003c\/td\u003e\n\u003ctd\u003eAbove 0.017 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHysteresis\u003c\/td\u003e\n\u003ctd\u003eUser-selectable from 0.2 to 2.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eOutputs\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Buffered Outputs\u003c\/td\u003e\n\u003ctd\u003e2 Keyphasor outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Connection\u003c\/td\u003e\n\u003ctd\u003eEuro Style connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered Output Impedance\u003c\/td\u003e\n\u003ctd\u003e504 ohm maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer Power Supply\u003c\/td\u003e\n\u003ctd\u003e-24 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transducer Supply Current\u003c\/td\u003e\n\u003ctd\u003e40 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eMechanical\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e241.3 x 24.4 x 103.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e9.50 x 0.96 x 4.06 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.46 kg (1.01 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Space\u003c\/td\u003e\n\u003ctd\u003e1 full-height rear slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-30 to +65 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCH 1\u003c\/td\u003e\n\u003ctd\u003eKeyphasor transducer input channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCH 2\u003c\/td\u003e\n\u003ctd\u003eKeyphasor transducer input channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Terminations\u003c\/td\u003e\n\u003ctd\u003eField connection for transducer signals and associated wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered KPH Outputs\u003c\/td\u003e\n\u003ctd\u003eRear buffered Keyphasor signal outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Interface\u003c\/td\u003e\n\u003ctd\u003eConnection to the associated 3500\/25 main module through the rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eVerify the Bently Nevada spare part number 125800-01 before replacement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm that the existing system requires the internal-termination I\/O configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify that the installed I\/O module is non-isolated before selecting the replacement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDocument existing CH 1 and CH 2 field wiring before module removal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIsolate the applicable system circuits before disconnecting field wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInspect the module connector and rack mating interface before installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReconnect transducer and buffered-output wiring according to the existing system documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm the corresponding 3500\/25 Keyphasor Module configuration after installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify Keyphasor input and output signals before returning the monitoring system to service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eConfiguration Guidelines\u003c\/h3\u003e\n\u003cp\u003eThe 125800-01 should be configured through the associated 3500\/25 Keyphasor system rather than treated as a standalone signal-processing device.\u003c\/p\u003e\n\u003cp\u003eConfirm the selected transducer type and signal characteristics before commissioning. Proximity probes and magnetic pickups have different operating considerations.\u003c\/p\u003e\n\u003cp\u003eThreshold and hysteresis settings should match the actual Keyphasor signal characteristics. Existing system configuration should be recorded before replacement.\u003c\/p\u003e\n\u003ch3\u003eCommissioning Recommendations\u003c\/h3\u003e\n\u003cp\u003eVerify both Keyphasor input channels individually after installation.\u003c\/p\u003e\n\u003cp\u003eConfirm that the transducer signal remains within the supported input range.\u003c\/p\u003e\n\u003cp\u003eCheck the buffered Keyphasor outputs where they are used by other monitoring or diagnostic equipment.\u003c\/p\u003e\n\u003cp\u003eCompare shaft speed and phase-reference behavior with the machine's known operating condition before completing commissioning.\u003c\/p\u003e\n\u003ch3\u003eReplacement Recommendations\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e125800-01\u003c\/strong\u003e is specifically the internal-termination, non-isolated Keyphasor I\/O Module.\u003c\/p\u003e\n\u003cp\u003eDo not substitute 126648-01 solely because both parts belong to the 3500\/25 system. The 126648-01 uses external terminations.\u003c\/p\u003e\n\u003cp\u003eLikewise, isolated I\/O configurations are separate spare parts and should not be treated as equivalent without confirming the installed system architecture.\u003c\/p\u003e\n\u003cp\u003eUse \u003cstrong\u003e125800-01\u003c\/strong\u003e as the primary spare part number when sourcing a replacement. The PWA 184389-01 marking can be used as an additional identification reference.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53754449723755,"sku":"3500\/25 125800-01","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500-25-125800-01-PWA-184389-01_001_1200x1200_ea64c9d7-72b8-4bc6-8d18-7ac923856d83.jpg?v=1787375955","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-3500-25-125800-01-keyphasor-i-o-module-pwa-184389-01","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}