{"product_id":"epro-pr9268-20-electrodynamic-velocity-sensor-probe","title":"Epro PR9268\/20 Electrodynamic Velocity Sensor Probe","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEPRO PR9268\/20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an electrodynamic velocity sensor engineered for continuous vibration measurement of rotating machinery such as turbines, compressors, pumps, and industrial fans. It operates on a self-generating electromagnetic induction principle, delivering a velocity-proportional analog voltage output without external excitation power.\u003c\/p\u003e\n\u003cp\u003eDesigned for condition monitoring and protection systems, it is widely used in critical asset health applications where stable long-term signal integrity is required under harsh mechanical and environmental conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMeasurement principle: Electrodynamic velocity transducer (magnetic induction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSensitivity: 28.5 mV\/mm\/s (±5%) at 50 Hz, 20 °C, 100 kΩ load\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency response: 4 Hz to 1000 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUsable measurement range: up to ±1500 µm displacement \/ ~100 mm\/s velocity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNatural frequency: 4.5 Hz ±0.75 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransverse sensitivity: 0.13 at 110 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum vibration limit: 3000 µm p-p (mechanical limit 4000 µm p-p)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous acceleration: 10 g; shock tolerance: 20 g intermittent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCoil resistance: 1875 Ω ±10%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInductance: ≤ 90 mH\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOperating temperature: -20 °C to +100 °C (higher-temp variants available up to +200 °C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProtection rating: IP55 standard (IP65 optional configuration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHousing material: Aluminum alloy (Al Mg Si Pb F 28)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutput type: Analog velocity signal (self-powered)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConnector options: Open cable or C-5015 industrial connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompliance: API 670, ISO 10817-1, DIN 45670\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 0.8 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: approx. 160 × 160 × 120 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHigh sensitivity sensing element for low-amplitude vibration detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStable broadband response suitable for turbomachinery diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSelf-powered operation eliminating external excitation requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRobust mechanical design for long-term industrial deployment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIP-rated enclosure for resistance to dust, oil mist, and moisture ingress\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with major vibration monitoring and protection systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Application Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe sensor is typically mounted directly on machine bearing housings. For optimal accuracy, vertical installation within ±30° is recommended. Proper cable strain relief and shielding are advised in high-electromagnetic-noise environments. Armored cable options are available for high-vibration or outdoor installations.\u003c\/p\u003e\n\u003cp\u003eCommon application areas include steam turbines, gas turbines, centrifugal compressors, pumps, and large industrial ventilation systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the PR9268\/20 require external power?\u003c\/strong\u003e\u003cbr\u003eA: No. It is a self-generating velocity sensor and does not require external excitation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can it be used for high-temperature machinery?\u003c\/strong\u003e\u003cbr\u003eA: Standard models support up to +100 °C. High-temperature variants extend operation up to +200 °C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is it suitable for API 670 systems?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is designed in compliance with API 670 vibration monitoring requirements.\u003c\/p\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":43260022980698,"sku":"PR9268\/20","price":178.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/PR9268201-000_a8c8ae14-b148-420e-9ea4-d3b9ef76824b.jpg?v=1776930462","url":"https:\/\/www.plcmasters.com\/tr\/products\/epro-pr9268-20-electrodynamic-velocity-sensor-probe","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}