{"product_id":"bently-nevada-3300-20-01-01-02-01-00-dual-thrust-monitor-1","title":"Bently Nevada 3300\/47-XX-XX-02-00 Differential Expansion Monitor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Bently Nevada 3300\/47 Differential Expansion Monitor is a rack-mounted module engineered to measure the relative thermal expansion between a turbine rotor and its casing. This measurement is vital for the protection of steam turbines and large rotating machinery, where differential thermal growth can lead to mechanical interference and catastrophic failure. The monitor provides continuous signal conditioning and comparison against pre-configured alarm setpoints to ensure equipment safety.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eContinuous monitoring of rotor-to-casing differential expansion.\u003c\/li\u003e\n\u003cli\u003eDual relay outputs configured for Alert and Danger alarm conditions.\u003c\/li\u003e\n\u003cli\u003eIntegrated LED status indicators for OK, Bypass, Alert, and Danger states.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard Bently Nevada proximity probe and Proximitor sensor configurations.\u003c\/li\u003e\n\u003cli\u003eProvides proportional output signals for external data logging and control systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is primarily used in power generation and heavy industrial environments for the protection of steam turbines, gas turbines, and large centrifugal compressors where precise monitoring of axial thermal growth is required to prevent mechanical contact.\u003c\/p\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-XX-02-00\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\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\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\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 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\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 properly grounded according to site electrical safety standards before module insertion.\u003c\/li\u003e\n\u003cli\u003eHandle the module using ESD-safe practices to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the rack backplane before applying power.\u003c\/li\u003e\n\u003cli\u003eEnsure signal cables from Proximitor sensors are properly shielded and routed away from high-voltage or high-EMI sources.\u003c\/li\u003e\n\u003cli\u003eAlways power down the rack or follow site-specific hot-swap procedures before removing or installing the module.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat does the 02 relay option provide?\u003c\/h3\u003e\u003cp\u003eThe 02 relay option provides dual relay outputs, allowing the module to trigger independent Alert and Danger alarms based on the measured differential expansion values.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with all proximity probes?\u003c\/h3\u003e\u003cp\u003eThe module is designed for use with Bently Nevada proximity probe systems. Compatibility depends on the specific probe type and the configuration defined by the second suffix in the model code.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":50986348445948,"sku":"3300\/47-XX-XX-02-00","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_bee1ac74-eb22-4228-a121-8a3d2064b56e.jpg?v=1786819372","url":"https:\/\/www.electronicplc.com\/products\/bently-nevada-3300-20-01-01-02-01-00-dual-thrust-monitor-1","provider":"Electronic PLC","version":"1.0","type":"link"}