{"product_id":"bently-nevada-991-06-70-01-05-probe-vibration-transmitter","title":"Bently Nevada 991-06-70-01-05 Probe Vibration Transmitter","description":"\u003ch2\u003eProduct Overview: Bently Nevada 991-06-70-01-05 Probe Vibration Transmitter\u003c\/h2\u003e\u003cp\u003eWhen axial thrust monitoring demands high reliability and rapid fault response, the Bently Nevada 991-06-70-01-05 Probe Vibration Transmitter delivers precise 4-20 mA signals for turbomachinery protection. This industrial automation module accepts a 3300 NSv proximity probe and converts shaft position into a linear current output. Designed for DIN rail mounting, the 991-06-70-01-05 includes agency approvals for hazardous locations (CSA Division 2, ATEX Zone 0\/2, ABS maritime) and operates from +12 to +35 Vdc.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Performance\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-70-01-05 offers a linear range of 0.25 to 1.65 mm for proximity output, supporting 0.6-0-0.6 mm or 25-0-25 mils current loop ranges. Key parameters include:\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 (2-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc at transmitter terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±1.5% typical over full-scale range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Loop Resistance\u003c\/td\u003e\n\u003ctd\u003e1000 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\u003eZero\/Span Adjustment\u003c\/td\u003e\n\u003ctd\u003eNon-interacting external\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustrial Applications: Axial Thrust Monitoring\u003c\/h2\u003e\u003cp\u003eThe 991-06-70-01-05 monitors axial shaft position in steam turbines, compressors, pumps, and large motors. Its 4-20 mA output integrates directly with PLCs, DCS, and vibration monitoring systems. The 0.6-0-0.6 mm full-scale option suits common thrust bearing clearances. In a typical installation, the Bently Nevada 991-06-70-01-05 connects to a 3300 NSv probe, providing continuous feedback to prevent rotor-to-stator contact.\u003c\/p\u003e\u003ch2\u003eInstallation and Mounting Guide\u003c\/h2\u003e\u003cp\u003eMount the 991-06-70-01-05 on a standard 35 mm DIN rail using the supplied clips (option 01). Connect the proximity probe and extension cable to the input terminals. Wire the 4-20 mA loop in a 2-wire configuration with a supply voltage between +12 and +35 Vdc at the transmitter. The non-interacting zero and span potentiometers allow calibration without affecting each other. Ensure ambient temperature remains within -35°C to +85°C for reliable operation.\u003c\/p\u003e\u003ch2\u003eTroubleshooting and Signal Integrity\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-70-01-05 includes a Not OK\/Signal Defeat feature that forces output below 3.6 mA within 100 µs when a probe fault occurs. This rapid response enables immediate shutdown logic. After the fault clears, output restores within 0.1 seconds. Common issues include incorrect supply voltage or loop resistance exceeding 1000 Ω at 35 Vdc. Verify probe gap and cable integrity. The 23 mA current limiting protects against short circuits.\u003c\/p\u003e\u003cp\u003eFor ordering assistance, visit ubest101 or contact PLC Source PRO for expert configuration guidance.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416812417123,"sku":"991-06-70-01-05","price":262.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-06-70-01-05-probe-vibration-transmitter","provider":"PLC Source PRO","version":"1.0","type":"link"}