{"product_id":"bently-nevada-990-10-50-01-05-990-vibration-transmitter","title":"Bently Nevada 990-10-50-01-05 990 Vibration Transmitter","description":"\u003cp\u003eThe \u003cstrong\u003e990-10-50-01-05\u003c\/strong\u003e is a two-wire, loop-powered vibration transmitter designed to provide a simple 4 to 20 mA proportional vibration signal directly to a machinery control system. This \u003cstrong\u003e990 Vibration Transmitter\u003c\/strong\u003e integrates a Proximitor Sensor into a single unit, accepting input from a 3300 NSv proximity probe and its matching extension cable. It conditions the transducer signal into appropriate peak-to-peak vibration amplitude engineering units, enabling cost-effective machinery protection alarming, logic, and overall vibration trending without requiring an external proximity sensor unit.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Proximitor Sensor eliminates the need for an external housing or separate signal conditioner.\u003c\/li\u003e\n\u003cli\u003eNon-isolated PROX OUT and COM terminals alongside a coaxial connector provide dynamic vibration and gap voltage signal output for diagnostics.\u003c\/li\u003e\n\u003cli\u003eNon-interacting zero and span potentiometers beneath the transmitter label allow easy loop adjustment.\u003c\/li\u003e\n\u003cli\u003eDedicated Test Input pin enables swift verification of the loop signal output via an external function generator.\u003c\/li\u003e\n\u003cli\u003eBuilt-in Not OK\/Signal Defeat circuit prevents false alarms or high loop outputs caused by loose connections or a faulty proximity probe.\u003c\/li\u003e\n\u003cli\u003eDual mounting flexibility with standard options for either 35 mm DIN-rail clips or bulkhead mounting screws.\u003c\/li\u003e\n\u003cli\u003ePotted construction ensures dependable performance in high-humidity environments up to 100% condensing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCentrifugal air compressors\u003c\/li\u003e\n\u003cli\u003eSmall industrial pumps\u003c\/li\u003e\n\u003cli\u003eElectric motors\u003c\/li\u003e\n\u003cli\u003eIndustrial cooling fans\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cp\u003e990: Vibration Transmitter\u003c\/p\u003e\n\u003cp\u003e10: 0-10 mils pp (0-250 um pp) Full-scale Option\u003c\/p\u003e\n\u003cp\u003e50: 5.0 meters (16.4 feet) System Length Option\u003c\/p\u003e\n\u003cp\u003e01: 35 mm DIN rail clips Mounting Option\u003c\/p\u003e\n\u003cp\u003e05: CSA Division 2, ATEX Zone 0, ATEX Zone 2 and includes ABS maritime approval Agency Approval Option\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e990-10-50-01-05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Signal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAccepts 1 non-contacting 3300 NSv Proximity Probe and extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc input at the transmitter terminal (28 Vdc for Hazardous locations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mAdc over specified full-scale range in 2-wire configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoop Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin +-1.5% over specified full-scale range across a 250 Ohm loop resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Loop Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 Ohm including cable at 35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Limiting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23 mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProbe Gap Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 to 1.75 mm (20 to 55 mils) from target to ensure full scale range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProx Out Linear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.4 mm (55 mils), starting at approx 0.25 mm (10 mils) from target surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProx Out Scale Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.87 mV\/um (200 mV\/mil) +-6.5% typical; worst case +-10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 Hz to 6,000 Hz +0, -3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNot OK \/ Signal Defeat\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput drops to less than 3.6 mA within 100 us of fault; restores in 2-3 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower-up Inhibit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput held at less than 3.6 mA for 2 to 3 seconds after power application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProx Out Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 kOhm output impedance calibrated for a 10 MOhm load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Noise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mV pp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Target Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.5 mm (0.375 in) diameter AISI 4140 steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Leadwire Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 meters (10 feet) for Proximitor Sensor Output (BNC connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature (Transmitter)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-35 to +85 Celsius (-31 to +185 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature (Transmitter)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-52 to +100 Celsius (-62 to +212 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating\/Storage Temperature (Probe)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-52 to +177 Celsius (-62 to +351 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% condensing, non-submerged (with coaxial connector protection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransducer Tip Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolyphenylene sulfide (PPS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransducer Case Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAISI 303 or 304 Stainless Steel (SST)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProbe Cable Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75 Ohm coaxial, fluoroethylene propylene (FEP) insulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTensile Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e222 N (50 lbf) probe case to probe lead, maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmitter Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal System Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.82 kg (1.8 lbm) typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector Pin \/ Terminal\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePROX OUT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-isolated dynamic vibration and gap voltage signal (BNC\/Terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon reference terminal for loop power and diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e+\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive loop power input (+12 to +35 Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNegative loop power return \/ 4-20 mA current output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTEST\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTest Input pin for external function generator signal verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoaxial Jack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect connection to the 3300 NSv matching extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eProbe Gap Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe proximity probe must be mechanically gapped between 0.5 and 1.75 mm (20 and 55 mils) from the target surface during installation. This ensures that the probe operates entirely within its linear range and allows the transmitter to accurately generate the full-scale 4 to 20 mA output.\u003c\/p\u003e\n\u003ch3\u003eThread Engagement Limits\u003c\/h3\u003e\n\u003cp\u003eWhen installing the probe into a threaded mounting hole, do not exceed the industry-standard maximum thread engagement length of 1.5 times the nominal thread diameter. For a 1\/4-28 thread, maximum engagement is 0.375 in; for M8x1, it is 12 mm. Exceeding these limits can cause mechanical binding and voids the warranty. For 1\/4-28 probes, a #3 or larger tap drill is recommended.\u003c\/p\u003e\n\u003ch3\u003eSignal Isolation and Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe PROX OUT coaxial connector provides a dynamic transducer signal for diagnostics but is not isolated from the 4 to 20 mA loop. While it can connect directly to isolated, battery-powered test equipment, using an external test adapter (such as the 990\/991 Test Adapter) is strongly recommended when connecting to AC-powered equipment like oscilloscopes. This preserves loop isolation and prevents false alarms or loop degradation.\u003c\/p\u003e\n\u003ch3\u003eMoisture Protection\u003c\/h3\u003e\n\u003cp\u003eThe transmitter features a potted construction rated for up to 100% condensing humidity. However, the coaxial connectors on the probe and extension cable must be physically protected against fluid ingress to maintain calibration and signal integrity.\u003c\/p\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSA:\u003c\/strong\u003e Class I, Division 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATEX:\u003c\/strong\u003e Zone 0, Zone 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine:\u003c\/strong\u003e ABS maritime approval\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 4 to 20 mA loop output be used to analyze vibration phase or establish gap alarms?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 4 to 20 mA loop output provides only overall peak-to-peak vibration amplitude data. It cannot capture vibration phase or support advanced monitoring features such as gap alarms, phase alarms, Danger Bypass, or Trip Multiply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens to the loop output if the proximity probe cable is disconnected or cut?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe transmitter features a Not OK\/Signal Defeat circuit. If a fault or loose connection occurs, the loop signal drops to less than 3.6 mA within 100 microseconds to prevent high outputs or false machinery alarms. It restores within 2 to 3 seconds once the fault condition is resolved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an external Proximitor sensor needed when ordering this transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The unit features a fully integrated Proximitor sensor inside the transmitter housing. It connects directly to the 3300 NSv probe extension cable without needing an intermediary signal conditioner.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666769703275,"sku":"990-10-50-01-05","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-990-10-50-01-05-990-vibration-transmitter-szxyhyku41t_b40d044d-afe4-4e90-9a27-c5eb4e1db6b8.jpg?v=1765447266","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-990-10-50-01-05-990-vibration-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}