{"product_id":"21504-04-12-05-02-bently-nevada-8mm-proximity-probe","title":"21504-04-12-05-02 Bently Nevada 8mm Proximity Probe","description":"\u003ch2\u003e\u003cstrong\u003eBently Nevada 21504-04-12-05-02 8mm Proximity Transducer System Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003ePrecision Engineered Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand and Model: This unit is a genuine Bently Nevada \u003cstrong\u003e21504\u003c\/strong\u003e, configured for specific installation needs.\u003c\/li\u003e\n\u003cli\u003eMechanical Configuration: It features an 8 mm diameter tip with 3\/8-24 threads. The suffix \u003cspan style=\"color: #d32f2f;\"\u003e04-12-05-02\u003c\/span\u003e indicates a 40 mm unthreaded length, 120 mm case, 0.5 m total length, and a miniature male coaxial connector.\u003c\/li\u003e\n\u003cli\u003ePower Input: The proximitor requires a DC power supply ranging from \u003cspan style=\"color: #d32f2f;\"\u003e-17.5V to -26V DC\u003c\/span\u003e with a maximum current draw of 12 mA.\u003c\/li\u003e\n\u003cli\u003eOutput Scale and Range: It provides a linear output of \u003cspan style=\"color: #d32f2f;\"\u003e200 mV\/mil (7.87 V\/mm)\u003c\/span\u003e over a full range of 80 mils (2.0 mm), starting at 10 mils (0.25 mm).\u003c\/li\u003e\n\u003cli\u003eSystem Linearity: The system-calibrated linearity is within \u003cspan style=\"color: #d32f2f;\"\u003e±0.02 mm\u003c\/span\u003e, ensuring high-accuracy readings.\u003c\/li\u003e\n\u003cli\u003eFrequency Response: It effectively monitors vibrations from 0 to 10 kHz (600,000 cpm), with only a -5% attenuation at the 10 kHz limit.\u003c\/li\u003e\n\u003cli\u003eEnvironmental Durability: The proximitor operates from \u003cspan style=\"color: #d32f2f;\"\u003e-51°C to +100°C\u003c\/span\u003e. The probe cable resists temperatures up to +177°C and withstands exposure to air, water, oils, and sulfuric acid.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhat is the primary application for the Bently Nevada \u003cstrong\u003e21504\u003c\/strong\u003e? Engineers commonly use this 8 mm probe for radial vibration and axial position monitoring on turbines, compressors, and pumps.\u003c\/li\u003e\n\u003cli\u003eWhat does the -17.5V to -26V DC power requirement mean for my setup? You need a negative DC power supply. The proximitor electronics are designed to operate within this specific negative voltage range for optimal performance.\u003c\/li\u003e\n\u003cli\u003eHow does temperature affect the \u003cstrong\u003e21504\u003c\/strong\u003e sensor's readings? At a 1.27 mm gap and 65°C, the sensitivity change is minimal at -396, ensuring the system maintains accuracy across temperature variations.\u003c\/li\u003e\n\u003cli\u003eIs this system resistant to corrosive chemicals? Yes, the \u003cstrong\u003e21504\u003c\/strong\u003e probe and cable resist common industrial chemicals including ammonium, sulfuric acid, MEK, and DMF.\u003c\/li\u003e\n\u003cli\u003eDo you have the \u003cstrong\u003e21504\u003c\/strong\u003e in stock? Yes, we maintain a ready inventory of this model. It is a new, factory-sealed unit available for immediate shipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDocumentation: You will receive a detailed product manual. You can also download the PDF guide here: \u003ca href=\"https:\/\/ctrlnexus-auto.com\/wp-content\/uploads\/2025\/07\/7200-Proximity-Transducer-Systems.pdf\" target=\"_blank\"\u003e7200 Proximity Transducer Systems\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor further assistance or inquiries, please contact us at \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e or \u003ca href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003ePartner Site: \u003ca href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45139225149601,"sku":"21504-04-12-05-02","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/21504-04-12-05-02.jpg?v=1773305844","url":"https:\/\/www.autonexcontrol.com\/sk\/products\/21504-04-12-05-02-bently-nevada-8mm-proximity-probe","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}