{"product_id":"vibro-meter-gsi127-244-127-000-017-a2-b02-galvanic-separation-unit","title":"Unité de séparation galvanique VIBRO-METER GSI127 244-127-000-017 A2-B02","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI127 244-127-000-017 (GSI127)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance galvanic separation unit designed for use within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVibro-Meter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVM600 and machinery protection chains. This unit serves as a critical safety and signal conditioning interface, providing electrical isolation between the field-mounted signal conditioners (such as the IQS450) and the monitoring system (such as the MPC4 card). By preventing ground loops and protecting sensitive electronics from high-voltage transients, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI 127\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures the integrity of vibration and displacement data in the most demanding industrial environments, including power plants and hazardous refinery zones.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration (Deep Dive)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e244-127-000-017 (A2-B02)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econfiguration is specifically tailored for high-precision signal transmission and power distribution to field sensors.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes high-integrity transformer coupling to provide 3-way isolation (input, output, and power supply), effectively eliminating noise interference caused by ground potential differences.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply Distribution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit transfers intrinsically safe power to the field-side signal conditioner while returning a precise, isolated 4-20 mA or voltage signal to the control room.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eA2-B02 Specification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e*\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndicates a specific output signal characteristic (typically a voltage output range optimized for VM600 racks).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eB02:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesignates the mounting and connection configuration, often featuring DIN-rail mounting for easy installation in junction boxes or Marshalling cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEx-Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to act as an associated apparatus, allowing the unit to interface with sensors located in Zone 0 or Zone 1 hazardous areas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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 Details\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eGSI127 244-127-000-017\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVibro-Meter (Meggitt)\u003c\/strong\u003e\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\u003eSwitzerland\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4000 Vrms (Input to Output)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (Nominal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage\/Current (Config-dependent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-20 to 70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDIN Rail (35 mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.25 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is galvanic separation necessary in a TQ402\/IQS450 measurement chain?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn large industrial sites, the ground potential at a turbine (field) and the control room (rack) can differ by several volts. Without the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI127\u003c\/strong\u003e, this difference creates a ground loop that injects noise into the measurement, leading to false vibration alerts or masked machinery faults.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the GSI127 244-127-000-017 require external calibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The unit is a \"unity gain\" or fixed-transfer-function device. It is factory-calibrated to ensure that the signal entering the unit from the field is identical to the signal leaving it for the rack, maintaining a high degree of linearity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the 24 VDC supply to the GSI127 is interrupted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit will cease signal transmission. However, its isolated design ensures that the power failure on the supply side does not cause a short circuit or surge on the field-side sensor loop, protecting your expensive transducers.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntrinsically Safe Wiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure that the \"Blue\" (hazardous area) terminals are physically separated from the \"Grey\/Black\" (safe area) terminals by at least 50 mm, or use a physical barrier. This is a mandatory requirement for maintaining the Ex-i certification of the loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIN Rail Grounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI127\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides galvanic isolation, the DIN rail itself should be bonded to a high-integrity instrument ground. This provides a path for any electromagnetic interference (EMI) captured by the unit's internal shielding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeat Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen installing multiple\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI127\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eunits in a single junction box, maintain a minimum spacing of 5 mm between units to allow for passive convection, as the internal DC\/DC converters generate a small amount of heat during operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eGSI127\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis distinguished by its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eUltra-Low Phase Shift\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etechnology. In vibration monitoring, the timing (phase) of the signal is just as important as the amplitude for diagnostics like \"Orbit Analysis.\" Unlike standard industrial isolators, the GSI127 is designed to maintain signal phase integrity up to 20 kHz, ensuring that your machinery diagnostics are based on accurate, undistorted waveforms.\u003c\/p\u003e","brand":"VIBRO-METER","offers":[{"title":"Default Title","offer_id":52695211114859,"sku":"GSI127 244-127-000-017 A2-B02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/vibro-meter-gsi127-244-127-000-017-a2-b02-galvanic-separation-unit-adaknxup3o4_a39a9750-f65c-442b-a97a-5a92fc85b878.jpg?v=1766130837","url":"https:\/\/www.plcprotech.com\/fr\/products\/vibro-meter-gsi127-244-127-000-017-a2-b02-galvanic-separation-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}