{"product_id":"bently-nevada-991-06-50-03-01-industrial-automation-module","title":"Bently Nevada 991-06-50-03-01 Industrial Automation Module","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-50-03-01 is a precision Probe Vibration Transmitter designed for axial thrust monitoring in rotating machinery. Part of the 991 series, this transmitter converts proximity probe signals into a 4-20 mA current loop output, providing continuous, reliable data for critical asset protection. With its built-in Not OK\/Signal Defeat function, the 991-06-50-03-01 ensures immediate fault indication (output drops below 3.6 mA within 100 µs) to prevent undetected failures.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eKey parameters of the Bently Nevada 991-06-50-03-01 include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Signal:\u003c\/strong\u003e 4-20 mAdc over specified full-scale range, 2-wire configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e +12 to +35 Vdc at transmitter terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Within ±1.5% of full scale (typical), measured across 250 Ω loop resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Range:\u003c\/strong\u003e 0.25 to 1.65 mm for Prox Out; supports 0.6-0-0.6 mm or 25-0-25 mils full-scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Loop Resistance:\u003c\/strong\u003e 1,000 Ω including cable at 35 Vdc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Limiting:\u003c\/strong\u003e 23 mA typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -35°C to +85°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -51°C to +100°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.43 kg (0.9 lbm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail with DIN clips and screws\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgency Approval:\u003c\/strong\u003e CSA Division 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThis Bently Nevada 991-06-50-03-01 transmitter excels in monitoring axial shaft position and thrust wear in turbines, compressors, pumps, and generators. Its 4-20 mA output integrates seamlessly with PLCs and DCS systems. The signal defeat feature is critical in safety instrumented systems where immediate fault detection prevents catastrophic failures.\u003c\/p\u003e\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\u003cp\u003eMount the Bently Nevada 991-06-50-03-01 on a standard DIN rail using the provided clips and screws. Connect a single 3300 NSv proximity probe and extension cable. Power the transmitter with +12 to +35 Vdc. The 4-20 mA loop must be wired in 2-wire configuration, respecting maximum loop resistance of 1,000 Ω. Use non-interacting external adjustments for zero and span calibration.\u003c\/p\u003e\u003ch2\u003eTroubleshooting Common Issues\u003c\/h2\u003e\u003cp\u003eIf output falls below 3.6 mA, the Bently Nevada 991-06-50-03-01 indicates a Not OK condition. Check probe integrity, cable continuity, and supply voltage. For accuracy drift, verify loop resistance and recalibrate. The current limiter (23 mA) protects against short circuits. Storage temperature must stay within -51°C to +100°C to avoid damage.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416770703459,"sku":"991-06-50-03-01","price":227.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-06-50-03-01-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}