{"product_id":"991-06-70-01-05-probe-vibration-transmitter-by-bently-nevada","title":"991-06-70-01-05 Probe Vibration Transmitter by Bently Nevada","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e991-06-70-01-05\u003c\/strong\u003e is an advanced thrust vibration transmitter engineered by Bently Nevada to provide continuous, direct monitoring of axial machine displacement. Designed to interface seamlessly with 3300 NSv proximity probes and extension cables, this unit converts raw transducer signals into a proportional 4-20 mA current loop. Industrial automation professionals rely on the \u003cstrong\u003e991-06-70-01-05\u003c\/strong\u003e for reliable machinery protection, streamlined PLC integration, and early detection of thrust bearing wear in critical rotating equipment.\u003c\/p\u003e\n\u003ch3\u003ePart Number Configuration Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model (991):\u003c\/strong\u003e Thrust Vibration Transmitter Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Scale Option (-06):\u003c\/strong\u003e 0.6-0-0.6 mm linear measurement range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Length Option (-70):\u003c\/strong\u003e 7.0 meters (23.0 feet) total probe and cable length compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Option (01):\u003c\/strong\u003e 35 mm DIN-rail mounting clips for secure panel installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgency Approval Option (05):\u003c\/strong\u003e CSA Division 2, ATEX Zone 0, ATEX Zone 2, and ABS maritime approvals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Bently Nevada (Made in U.S.A.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e 991 Thrust Transmitter Platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e \u003cstrong\u003e991-06-70-01-05\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Probe Vibration \/ Thrust Transmitter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Compatibility:\u003c\/strong\u003e Accepts one (1) non-contacting 3300 NSv proximity probe and extension cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Requirements:\u003c\/strong\u003e +12 to +35 Vdc input at transmitter terminals (2-wire configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Output:\u003c\/strong\u003e 4 to 20 mAdc proportional to the specified full-scale range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Accuracy:\u003c\/strong\u003e Within ±1.5% typical over specified range (tested across 250 ohm loop resistance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Loop Resistance:\u003c\/strong\u003e 1,000 ohms including cable at 35 Vdc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Limiting:\u003c\/strong\u003e 23 mA typical protection threshold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot OK \/ Signal Defeat:\u003c\/strong\u003e Drops output below 3.6 mA within 100 µs upon fault detection; restores within 0.1 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmitter Weight:\u003c\/strong\u003e 0.43 kg (0.9 lbm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -35°C to +85°C (-31°F to +185°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -51°C to +100°C (-60°F to +212°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Integration Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail Mounting:\u003c\/strong\u003e Mount the transmitter securely onto standard 35 mm DIN rails inside your local instrument enclosure or control cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Wiring:\u003c\/strong\u003e Connect the 2-wire 4-20 mA current loop using properly shielded instrumentation cabling, ensuring total loop resistance remains under 1,000 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Input:\u003c\/strong\u003e Supply a stable DC voltage source ranging from +12 to +35 Vdc directly to the transmitter terminal blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransducer Connection:\u003c\/strong\u003e Link the compatible 3300 NSv proximity probe system directly into the transmitter input stage while maintaining correct cable length matching (-70 configuration).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommissioning \u0026amp; Maintenance Ease\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero and Span Adjustments:\u003c\/strong\u003e Utilize the built-in non-interacting external adjustment screws to calibrate zero and span parameters precisely during loop checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Defeat Monitoring:\u003c\/strong\u003e Leverage the automatic Not OK signal defeat feature, which instantly drives loop output below 3.6 mA to indicate sensor faults or disconnected wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Panel Access:\u003c\/strong\u003e Compact 0.43 kg footprint and clip-on mounting simplify replacement and physical inspection procedures during scheduled plant turnarounds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Compatibility:\u003c\/strong\u003e Optimized exclusively for 3300 NSv proximity probes and associated extension cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Integration:\u003c\/strong\u003e Interfaces directly with standard PLC, DCS, or SCADA analog input cards accepting 4-20 mA current loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Approvals:\u003c\/strong\u003e Certified safe for hazardous locations under CSA Division 2, ATEX Zone 0 and Zone 2, alongside official ABS maritime compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePacking List \u0026amp; Warranty Terms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePacking List:\u003c\/strong\u003e One (1) \u003cstrong\u003e991-06-70-01-05\u003c\/strong\u003e Vibration Transmitter, 35 mm DIN-rail mounting clips, and compliance documentation sheet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Terms:\u003c\/strong\u003e Fully covered by a comprehensive 12-month warranty ensuring complete operational reliability from the date of purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCourier Network:\u003c\/strong\u003e Secure, expedited international shipping handled through trusted global carriers including FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFulfillment Window:\u003c\/strong\u003e Orders are rigorously verified, securely packaged, and dispatched within 24-48 hours to prevent costly project delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Application Scenes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteam \u0026amp; Gas Turbines:\u003c\/strong\u003e Monitoring continuous axial shaft displacement and thrust bearing wear to prevent catastrophic internal rub damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Centrifugal Compressors:\u003c\/strong\u003e Tracking rotor end-float and axial position in high-pressure industrial gas compression trains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Propulsion Systems:\u003c\/strong\u003e Overseeing thrust load dynamics on shipboard drive shafts under certified ABS marine operational conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB Insight \u0026amp; Field Experience\u003c\/h3\u003e\n\u003cp\u003eWhen deploying loop-powered transmitters like the \u003cstrong\u003e991-06-70-01-05\u003c\/strong\u003e over long cable runs, voltage drop calculation is critical. Field experience indicates that if total loop resistance approaches the 1,000-ohm limit while using a lower supply voltage (e.g., +12 Vdc), current loop saturation can occur. Our engineering team recommends supplying at least +24 Vdc to +35 Vdc to the loop terminal when interfacing with distant control systems to guarantee full 23 mA current-limiting headroom and stable signal transmission.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the Not OK \/ Signal Defeat feature on this transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Not OK feature automatically drives the 4-20 mA output signal below 3.6 mA within 100 microseconds if a sensor fault, open circuit, or power disruption occurs, alerting the control system to a transducer problem.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 991-06-70-01-05 be powered using a standard 12V DC power source?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the unit accepts an input voltage ranging from +12 to +35 Vdc, though higher supply voltages are recommended if your total loop wiring resistance is extensive.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat proximity probe series is required to feed this thrust transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis transmitter is specifically engineered to accept input signals from a single 3300 NSv non-contacting proximity probe and matching extension cable system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are zero and span calibrations performed on site?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalibration is performed using non-interacting external adjustment potentiometers located on the transmitter housing for quick, accurate loop tuning without internal board access.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat key selection factors should I evaluate when replacing an existing vibration transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlways verify your required full-scale measurement range (such as -06 for 0.6-0-0.6 mm), system cable length configuration, mounting style (DIN-rail clips), and hazardous area approval ratings to match your plant specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/991_524659a5-cbca-478a-b812-374d1b70ec8e.png?v=1784875246\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013971959990,"sku":"991-06-70-01-05","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/991_2_b998b6a1-04c2-4dcb-8fe3-9801f28e4a1b.jpg?v=1786515942","url":"https:\/\/www.plcsparehub.com\/products\/991-06-70-01-05-probe-vibration-transmitter-by-bently-nevada","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}