{"product_id":"bently-nevada-3300-47-xx-xx-02-00-differential-expansion-monitor-1","title":"Bently Nevada 3300\/47-XX-03-01-00 Differential Expansion Monitor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Bently Nevada 3300\/47 Differential Expansion Monitor is a specialized rack-mounted module engineered to track the relative thermal expansion between a turbine rotor and its casing. By monitoring this critical clearance, the module helps prevent mechanical interference and potential damage in steam turbines and large rotating machinery. The unit provides continuous signal processing and compares real-time expansion data against pre-configured alarm setpoints.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for integration within the Bently Nevada 3300 monitoring system series.\u003c\/li\u003e\n\u003cli\u003eSupports proximity probe inputs via Proximitor sensors for high-precision displacement measurement.\u003c\/li\u003e\n\u003cli\u003eIncludes dual relay outputs to facilitate Alert and Danger alarm logic.\u003c\/li\u003e\n\u003cli\u003eProvides visual status indication via front-panel LEDs for OK, Bypass, Alert, and Danger conditions.\u003c\/li\u003e\n\u003cli\u003eConfigurable signal conditioning to match specific turbine mechanical requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3300\/47-XX-03-01-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e3300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~1.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e200 mV\/mil (8 V\/mm) or 100 mV\/mil (4 V\/mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.33% typical (+\/- 1% max at 25 degC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signals\u003c\/td\u003e\n\u003ctd\u003e+4 to +20 mA, +1 to +5 VDC, 0 to -10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the 3300 rack is powered down before inserting or removing the module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eThe module must be installed in a clean, dry environment within the specified operating temperature range.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for proximity probe inputs to minimize EMI interference.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the rack backplane to ensure reliable communication and power distribution.\u003c\/li\u003e\n\u003cli\u003eFollow standard ESD handling procedures when touching internal circuitry or connectors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 3300\/47 monitor?\u003c\/h3\u003e\u003cp\u003eThis module is used to measure the differential expansion between a turbine rotor and the casing, which is essential for protecting rotating machinery from mechanical contact due to thermal growth.\u003c\/p\u003e\u003ch3\u003eDoes this module include relay outputs?\u003c\/h3\u003e\u003cp\u003eYes, the -01 option indicates the inclusion of dual relay outputs for Alert and Danger alarm conditions.\u003c\/p\u003e\u003ch3\u003eWhat type of sensors does this monitor support?\u003c\/h3\u003e\u003cp\u003eThe -03 configuration is designed for use with standard Bently Nevada proximity probes and Proximitor sensors.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":51190939091196,"sku":"3300\/47-XX-03-01-00","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_07d6a070-9eb2-49b6-ba9c-928d9f76b44a.jpg?v=1788118323","url":"https:\/\/www.electronicplc.com\/es\/products\/bently-nevada-3300-47-xx-xx-02-00-differential-expansion-monitor-1","provider":"Electronic PLC","version":"1.0","type":"link"}