{"product_id":"bently-nevada-991-06-50-02-01-industrial-automation-module","title":"Bently Nevada 991-06-50-02-01 Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-50-02-01 is a precision Probe Vibration Transmitter designed for continuous monitoring of axial shaft thrust in rotating machinery. This industrial automation module converts proximity probe signals into a 4-20 mA output, enabling seamless integration with PLCs and DCS systems. With a rugged design and built-in fault detection, the 991-06-50-02-01 ensures reliable operation even in harsh environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe following table highlights the key parameters of the Bently Nevada 991-06-50-02-01:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range (Prox Out)\u003c\/td\u003e\n\u003ctd\u003e0.25 to 1.65 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Scale Option\u003c\/td\u003e\n\u003ctd\u003e0.6-0-0.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1.5% typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Loop Resistance\u003c\/td\u003e\n\u003ctd\u003e1,000 Ω at 35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limiting\u003c\/td\u003e\n\u003ctd\u003e23 mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-35°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-51°C to +100°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e1 non-contacting 3300 NSv probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Division 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe Bently Nevada 991-06-50-02-01 offers non-interacting zero and span adjustments, and its Not OK\/Signal Defeat function forces the output below 3.6 mA within 100 µs of a fault, ensuring prompt system alerts.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 991-06-50-02-01 is ideal for axial thrust monitoring in turbines, compressors, and large pumps. In a steam turbine installation, the transmitter's 0.6-0-0.6 mm range detects thrust bearing wear early, preventing catastrophic failure. Its 4-20 mA output interfaces directly with most PLC-based protection systems. The fault detection feature is critical in remote or unattended locations, as the output drops immediately upon sensor or wiring issues.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the Bently Nevada 991-06-50-02-01 on a standard DIN rail. Connect a 3300 NSv proximity probe and extension cable to the input terminals. Wire the 4-20 mA loop in a two-wire configuration; ensure the power supply provides +12 to +35 Vdc. Adjust zero and span using the non-interacting external potentiometers. For bulkhead mounting (option 02), use the provided screws. Verify loop resistance stays below 1,000 Ω to maintain accuracy.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe 991-06-50-02-01 is designed for minimal maintenance. Periodically inspect connections and ensure the operating temperature stays within -35°C to +85°C. The Not OK\/Signal Defeat function provides self-diagnostics: if the transmitter detects an internal fault, it forces the output below 3.6 mA. This feature reduces downtime by alerting operators before a minor issue escalates. The robust enclosure and CSA Division 2 rating ensure reliable operation in hazardous areas.\u003c\/p\u003e\u003ch2\u003eSelection Guide\u003c\/h2\u003e\u003cp\u003eWhen ordering the Bently Nevada 991-06-50-02-01, specify the full-scale option (06 for 0.6-0-0.6 mm), system length (5.0 meters), mounting (02 bulkhead screws), and agency approval (01 CSA Division 2). This transmitter is available from PLC Source PRO (ubest101) as a new unit. Verify that your probe and cable are compatible with the 3300 NSv series. For additional support, consult the product datasheet.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416693862499,"sku":"991-06-50-02-01","price":284.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-06-50-02-01-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}