{"product_id":"bently-nevada-330750-20-high-temperature-velomitor-system","title":"Bently Nevada 330750-20 Hochtemperatur-Velomitor-System","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eOption 20 (2 meters integrated hardline cable length) specifies this \u003cstrong\u003eHigh Temperature Velomitor System\u003c\/strong\u003e configuration — \u003cstrong\u003e330750-20\u003c\/strong\u003e. This industrial piezoelectric velocity sensor segregates the sensing element from the signal conditioning electronics, enabling reliable machinery casing vibration monitoring in extreme thermal environments. With this design, the sensing head can be mounted on surfaces reaching temperatures up to 400 degC (752 degF).\u003c\/p\u003e\n\n\u003cp\u003eBy using a permanently connected integrated hardline cable, the 330750-20 eliminates intermediate connectors, which are a major source of signal loss and mechanical transducer failures in hot zones. The 2-meter cable allows the signal conditioning electronics to be positioned in a cooler location with operating temperatures from -55 degC to 121 degC (-67 degF to 250 degF) to preserve long-term reliability. This system captures high-quality casing velocity measurements comparable to standard velocity sensors but at significantly higher operating temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOption 20 Cable Length: Includes a 2-meter integrated hardline cable connecting the sensing head directly to the conditioning electronics.\u003c\/li\u003e\n  \u003cli\u003eExtreme Temperature Support: Sensing head and hardline cable withstand operating surface temperatures up to 400 degC (752 degF).\u003c\/li\u003e\n  \u003cli\u003eSegregated Transducer Design: Places delicate signal conditioning electronics in a separate housing to run in a cooler zone.\u003c\/li\u003e\n  \u003cli\u003eConnectorless Sensor Interface: Permanent hardline cable attachment prevents connector fatigue and failure in extreme heat.\u003c\/li\u003e\n  \u003cli\u003eNominal Velocity Output: Standard 5.7 mV\/mm\/s (145 mV\/in\/s) sensitivity for direct integration with Bently Nevada machinery protection monitors.\u003c\/li\u003e\n  \u003cli\u003eHermetically Sealed Head: 300-series stainless steel case protects against moisture and severe industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGas and steam turbine casing vibration monitoring\u003c\/li\u003e\n  \u003cli\u003eHigh-temperature exhaust duct and piping analysis\u003c\/li\u003e\n  \u003cli\u003eExhaust gas expander casing measurements\u003c\/li\u003e\n  \u003cli\u003eBoiler feed pumps and extreme-temperature rotating machinery protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eOption \/ Segment\u003c\/th\u003e\n      \u003cth\u003eCode on This SKU\u003c\/th\u003e\n      \u003cth\u003eDescription\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOrderable Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e330750-20\u003c\/td\u003e\n      \u003ctd\u003eHigh Temperature Velomitor System, standard mounting\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eA - Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e20\u003c\/td\u003e\n      \u003ctd\u003e2.0 meters (6.6 feet) of integrated hardline cable\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eBently Nevada\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePart Number \/ Model\u003c\/td\u003e\n      \u003ctd\u003e330750-20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eHigh Temperature Velomitor System\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSensitivity\u003c\/td\u003e\n      \u003ctd\u003e5.7 mV\/mm\/s (145 mV\/in\/s) plus or minus 5% at 100 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFrequency Response\u003c\/td\u003e\n      \u003ctd\u003e15 to 2000 Hz plus or minus 3.0 dB; 20 to 1000 Hz plus or minus 0.9 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSensing Head Temperature Range\u003c\/td\u003e\n      \u003ctd\u003e-55 degC to 400 degC (-67 degF to 752 degF)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHardline Cable Temperature Range\u003c\/td\u003e\n      \u003ctd\u003e-55 degC to 400 degC (-67 degF to 752 degF)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectronics Temperature Range\u003c\/td\u003e\n      \u003ctd\u003e-55 degC to 121 degC (-67 degF to 250 degF)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTransverse Sensitivity\u003c\/td\u003e\n      \u003ctd\u003eLess than 5% of sensitivity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAmplitude Linearity\u003c\/td\u003e\n      \u003ctd\u003eplus or minus 2% up to 152 mm\/s (6 in\/s) peak\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMounted Resonant Frequency\u003c\/td\u003e\n      \u003ctd\u003eGreater than 5 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOutput Bias Voltage\u003c\/td\u003e\n      \u003ctd\u003e-12 plus or minus 2.0 VDC nominal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBroadband Noise Floor\u003c\/td\u003e\n      \u003ctd\u003e0.127 mm\/s (0.005 in\/s) rms nominal (15 Hz to 2 kHz)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eGrounding\u003c\/td\u003e\n      \u003ctd\u003eCase isolated\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaximum Interconnect Cable Length\u003c\/td\u003e\n      \u003ctd\u003e305 meters (1000 feet) with no signal degradation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCase Material\u003c\/td\u003e\n      \u003ctd\u003e300 series stainless steel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnector Type\u003c\/td\u003e\n      \u003ctd\u003e2-pin Mil-C-5015 receptacle, hermetically-sealed, 304 stainless steel shell\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMinimum Cable Bend Radius\u003c\/td\u003e\n      \u003ctd\u003e51 mm (2.0 in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eShock Survivability\u003c\/td\u003e\n      \u003ctd\u003e24,535 m\/s2 (2500 g) peak\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity Limits\u003c\/td\u003e\n      \u003ctd\u003eTo 100% non-submerged (hermetically sealed)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003e635 grams (1.40 lb) typical\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003ePin Designation\u003c\/th\u003e\n      \u003cth\u003eFunction \/ Description\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePin A\u003c\/td\u003e\n      \u003ctd\u003ePositive Signal (Velocity Output)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePin B\u003c\/td\u003e\n      \u003ctd\u003eSignal Common \/ Return\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Bend Radius:\u003c\/strong\u003e Maintain a minimum bend radius of 51 mm (2.0 in) for the integrated hardline cable to prevent internal conductor damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e Position the signal conditioning electronics inside a weatherproof enclosure with wiring protected in conduit for outdoor installations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Surface:\u003c\/strong\u003e Secure the sensing head to a flat, smooth, clean surface with correct torque to facilitate high-frequency vibration transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Considerations:\u003c\/strong\u003e Verify that the signal conditioning electronics housing does not exceed its maximum operating limit of 121 degC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eATEX Directive 2014\/34\/EU\u003c\/li\u003e\n  \u003cli\u003eEMC Directive 2014\/30\/EU\u003c\/li\u003e\n  \u003cli\u003eRoHS Directive 2011\/65\/EU\u003c\/li\u003e\n  \u003cli\u003eHazardous Area Approvals (with safe barrier): Class I, Division 1, Groups A, B, C, D (T4\/T1); Class I, Zone 0, Ex ia IIC T4\/T1 Ga; Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, Ex ec IIC T4\/T1 Gc\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666633552235,"sku":"330750-20","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-330750-20-high-temperaturevelomitor-system-jnuo2nhn5bp_c68c724e-77b9-4353-9a3d-0dda821fa8b6.jpg?v=1765444434","url":"https:\/\/www.plcprotech.com\/de\/products\/bently-nevada-330750-20-high-temperature-velomitor-system","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}