{"product_id":"isolated-phase-reference-new-bently-nevada-126648-02","title":"Isolated Phase Reference | New Bently Nevada 126648-02","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 126648-02\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the isolated I\/O interface for the 3500\/25 Keyphasor® module within the 3500 Machinery Protection System. This specialized card processes once-per-turn pulses from proximity probes or magnetic pickups to provide accurate speed and phase reference data. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, featuring advanced galvanic isolation to eliminate ground loops and signal interference in complex industrial earthing environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIsolated Keyphasor® I\/O (Internal Termination)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada 3500\/25 Monitoring Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Pickups \/ Proximity Probes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFully isolated to prevent ground loop interference\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e241.3 × 24.4 × 103.1 mm (9.50 × 0.96 × 4.06 in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.46 kg (1.01 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.4 kg (3.0 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCE Certified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Signal Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 126648-02 incorporates isolation circuitry that physically separates the field sensor signals from the 3500 rack's internal backplane. This prevents common-mode noise and ground potential differences from corrupting critical timing pulses, ensuring rock-solid phase measurements even in electrically \"dirty\" environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-Probe Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis I\/O module accepts signals from both passive magnetic pickups and active 3-wire proximity transducers. This flexibility allows engineers to standardize on a single I\/O type for various speed sensing applications across the plant.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElimination of False Triggering:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy cleaning and isolating the Keyphasor pulse, the 126648-02 prevents the 3500 system from registering \"ghost\" pulses or double-triggering. This stability is vital for accurate vibration phase analysis and precision balancing of high-speed rotors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Rack Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module slides directly into the rear of the 3500 rack. Its compact width (0.96 inches) ensures maximum channel density, allowing for multiple Keyphasor inputs within a single protection system without occupying excessive rack space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. What is the difference between the 126648-01 and the 126648-02?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 126648-02 specifically denotes the isolated version of the Keyphasor I\/O. While the non-isolated version works in simple setups, the -02 version is mandatory for sites experiencing ground loop interference or where sensors and the 3500 rack utilize different grounding points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Can I use this I\/O module with a 3500\/50 Tachometer module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 126648-02 is designed exclusively for the 3500\/25 Keyphasor module. Tachometer modules (3500\/50M) require their own dedicated I\/O cards to process high-frequency pulse trains for continuous speed monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Does this module support internal or external termination?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 126648-02 is an Internal Termination (IT) module. Field wiring connects directly to the screw terminals on the back of the I\/O card itself. If your site uses External Termination Blocks (ETBs), you require the \"External Termination\" variant of this I\/O.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. How do I configure the input for a magnetic pickup vs. a proximity probe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou set the sensor type within the 3500 Rack Configuration Software. The software adjusts the threshold and hysteresis levels of the 126648-02 circuitry to match the specific voltage output characteristics of your chosen transducer.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44088505106531,"sku":"126648-02","price":460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/147.1_aa4acf20-f9a8-44a8-bcd4-3bead6e0e67a.jpg?v=1774840528","url":"https:\/\/www.autocontrolglobal.com\/products\/isolated-phase-reference-new-bently-nevada-126648-02","provider":"AutoControl Global","version":"1.0","type":"link"}