{"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 specialized rack-mount module engineered to track the relative thermal expansion between a turbine rotor and its casing. By monitoring this critical displacement, the module helps prevent mechanical interference and catastrophic failure in steam turbines and large-scale rotating machinery. The unit provides continuous signal processing and real-time comparison against configured alarm setpoints to ensure operational safety.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrecise measurement of relative rotor-to-casing thermal expansion.\u003c\/li\u003e\n\u003cli\u003eIntegrated signal conditioning for proximity probe inputs.\u003c\/li\u003e\n\u003cli\u003eDual relay outputs designated for Alert and Danger alarm conditions.\u003c\/li\u003e\n\u003cli\u003eFront-panel status monitoring via LEDs for OK, Bypass, Alert, and Danger states.\u003c\/li\u003e\n\u003cli\u003eStandardized 3300 series rack-mount form factor for seamless system integration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is primarily utilized in power generation and heavy industrial sectors for the protection of steam turbines and large rotating equipment. It is essential for monitoring thermal growth during startup, shutdown, and steady-state operations to mitigate the risk of rotor strikes against internal casing components.\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\u003e1.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003eProximity probe (via Proximitor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e200 mV\/mil or 100 mV\/mil (config dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.33% typical (at 25 deg C)\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 monitor module.\u003c\/li\u003e\n\u003cli\u003eHandle the module using proper ESD-safe practices to prevent damage to sensitive internal circuitry.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the rack slot to ensure reliable backplane communication.\u003c\/li\u003e\n\u003cli\u003eRoute signal cables away from high-voltage lines or sources of significant electromagnetic interference (EMI) to maintain signal integrity.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation around the rack to maintain the operating temperature within the 0 to 60 deg C range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat does the 02 suffix represent in this model?\u003c\/h3\u003e\u003cp\u003eThe 02 suffix indicates that the module is equipped with dual relay outputs, specifically configured to manage Alert and Danger alarm logic.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with standard proximity probes?\u003c\/h3\u003e\u003cp\u003eYes, the 3300\/47 monitor is designed to accept inputs from standard proximity probes connected through Proximitor sensors, with sensitivity settings adjustable based on the specific probe configuration.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43996057665626,"sku":"3300\/47-XX-XX-02-00","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_29529801-2954-45a5-88fe-28c433bcdadf.jpg?v=1788305403","url":"https:\/\/www.spareoil.com\/es\/products\/bently-nevada-3300-20-01-01-02-01-00-dual-thrust-monitor-1","provider":"SpareOil Automation","version":"1.0","type":"link"}