{"product_id":"bently-nevada-330425-02-cn-accelerometer-acceleration-transducer","title":"Bently Nevada 330425-02-CN Accelerometer Acceleration Transducer","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e330425-02-CN\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance piezoelectric accelerometer from the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 330400 series\u003c\/strong\u003e. Unlike proximity probes that measure displacement, this transducer measures\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eacceleration\u003c\/strong\u003e, making it ideal for monitoring high-frequency vibration associated with gear teeth mesh, rolling element bearing defects, and aerodynamic\/hydrodynamic phenomena.\u003c\/p\u003e\n\u003cp\u003eDesigned for critical machinery protection, the 330425 provides a wide frequency response and a rugged construction capable of withstanding harsh industrial environments. The \"CN\" version is specifically certified to meet regional hazardous area standards for the Chinese market.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe part number breakdown identifies the mounting and certification specifics for this transducer:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel 330425:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA standard industrial accelerometer providing a voltage output proportional to acceleration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Thread (02):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eM8 x 1 integral stud\u003c\/strong\u003e. This metric mounting interface ensures a rigid, high-stiffness connection to the machine casing, which is essential for accurate high-frequency data acquisition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAgency Approval (CN):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComplies with country-specific regulations for China (such as NEPSI), allowing for installation in potentially explosive atmospheres.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePiezoelectric Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes internal ceramic crystals that generate an electrical charge when subjected to vibration, which is then converted to a low-impedance voltage signal.\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\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e330425-02-CN\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada (Baker Hughes)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 mV\/m\/s² (25 mV\/g) ±5%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 Hz to 15 kHz (±3 dB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAmplitude Linearity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±1% up to 735 m\/s² (75 g) peak\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResonant Frequency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026gt;30 kHz (mounted)\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\u003e0.1 kg (Transducer only)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Torque\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.5 N·m (40 in·lb) maximum\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\u003e1.0 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\u003eWhen should I use an accelerometer instead of a proximity probe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProximity probes are best for \"soft-bearing\" machines where the shaft moves significantly within the bearing (measuring relative displacement). Accelerometers are preferred for \"hard-bearing\" machines or high-frequency applications (above 1 kHz) where the vibration energy is transmitted through the bearing housing to the machine casing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is mounting torque so important for this M8 stud?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHigh-frequency vibration monitoring relies on a perfect mechanical bond. If the M8 stud is under-torqued, the sensor may \"bounce\" or resonate at lower frequencies, creating false data. Over-torquing can damage the internal piezoelectric crystals or strip the metric threads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this sensor compatible with 3500\/42M monitors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 330425 is standardly used with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500\/42M Proximitor\/Seismic Monitor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1900\/65A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estandalone monitor. Ensure the monitor configuration is set to \"Accelerometer\" with the correct 25 mV\/g sensitivity.\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\u003eSurface Preparation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe mounting surface must be flat, smooth, and clean. Even minor imperfections or paint layers between the M8 stud and the machine casing can act as a dampener, filtering out the high-frequency signals you are trying to measure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCabling and Connectors:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAccelerometers are sensitive to cable noise. Always use the recommended Bently Nevada shielded cables (like the 330400 series cables) and ensure the top-exit connector is tight and moisture-sealed using a silicone boot or heat-shrink if exposed to fluids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrientation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAccelerometers are directional. Ensure the axis of the sensor is aligned with the direction of the vibration you wish to measure (typically radial or axial relative to the shaft).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf your monitoring system requires \"Velocity\" data but you are using this 330425 \"Acceleration\" sensor, the monitor must perform a mathematical integration (\u003cspan class=\"math-inline\"\u003eV=fadt\u003c\/span\u003e). Ensure this is correctly configured in the rack software to avoid incorrect unit displays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668324577643,"sku":"330425-02-CN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-330425-02-cn-accelerometeracceleration-transducers-n1zrypuzwvq_0a081b22-0eea-4982-a7cc-f2538f07e608.jpg?v=1765444446","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-330425-02-cn-accelerometer-acceleration-transducer","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}