{"product_id":"330750-20-bently-nevada-high-temperature-velomitor-system-piezo-velocity-sensor","title":"330750-20 Bently Nevada High Temperature Velomitor System | Piezo-Velocity Sensor","description":"\u003ch3 class=\"\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe Bently Nevada 330750-20 is a specialized piezo-velocity transducer system engineered for absolute vibration monitoring in extreme thermal environments.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eUnlike integrated velocity sensors,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe 330750-20 utilizes a segregated architecture that separates the sensing head from the signal conditioning electronics.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis design allows the sensing element to be mounted directly on machinery surfaces reaching up to 400°C (752°F),\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ewhile the sensitive electronic components are situated in a cooler,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eremote location via an integral hardline cable.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis system is a critical component of Turbine Supervisory Instrumentation (TSI),\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eproviding a standard velocity output that simplifies integration with existing monitoring racks and control systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eHardware Parameters and Key Technical Characteristics\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe 330750-20 system is designed to eliminate common failure points in high-heat applications,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003esuch as connector degradation and electronic thermal drift.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBy removing connectors between the probe head and the converter,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe system ensures maximum signal integrity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eModel Number\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e330750-20\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eTransducer Type\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ePiezo-velocity (Remote Electronics)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eMaximum Sensing Temperature\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e400°C (752°F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSensitivity\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e5.\u003c\/span\u003e\u003cspan class=\"\"\u003e7 mV\/mm\/s (145 mV\/in\/s) ±5%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eFrequency Response\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e15 Hz to 2,\u003c\/span\u003e\u003cspan class=\"\"\u003e000 Hz (900 to 120,\u003c\/span\u003e\u003cspan class=\"\"\u003e000 cpm) ±3.\u003c\/span\u003e\u003cspan class=\"\"\u003e0 dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eAmplitude Linearity\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e±2% up to 152 mm\/s (6 in\/s) peak\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eIntegral Cable Length\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e2.\u003c\/span\u003e\u003cspan class=\"\"\u003e0 Meters (Option -20)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eOutput Bias Voltage\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e-12 ± 2.\u003c\/span\u003e\u003cspan class=\"\"\u003e0 VDC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eExcitation Current\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e2 mA to 10 mA (Constant Current)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eHousing Material\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e304L Stainless Steel (Sensing Head)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eWeight\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e0.\u003c\/span\u003e\u003cspan class=\"\"\u003e2 kg (System total)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eIndustrial Applications and Operational Use Cases\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe High Temperature Velomitor System is the industry standard for monitoring the casing vibration of assets where standard sensors would fail due to heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eGas Turbine Casing Monitoring\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eMeasuring absolute vibration on the hot sections of gas turbines to detect unbalance and aerodynamic instabilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSteam Turbine Valve Gear\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eProviding vibration data for main steam valves and high-pressure casing points.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eExhaust Fan Assemblies\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eMonitoring large industrial fans handling high-temperature process gases in smelting or chemical refining.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eHeat Exchanger Vibration\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eTracking flow-induced vibration in high-temperature heat exchange units.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003ePredictive Maintenance\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eInterfacing with Bently Nevada 3500\/42M or 1900\/65A monitors to provide real-time vibration velocity data for automated machinery protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eBy moving the signal conditioning circuitry away from the heat source,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe 330750-20 extends the mean time between failures (MTBF) and ensures that critical safety data remains accurate even during peak thermal cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45518866415789,"sku":"330750-20","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/bently-nevada-330750-20-high-temperaturevelomitor-system-hvpa4rjda5g.jpg?v=1766980536","url":"https:\/\/www.maxwellplc.com\/products\/330750-20-bently-nevada-high-temperature-velomitor-system-piezo-velocity-sensor","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}