{"product_id":"990-04-xx-01-05-mod-165335-01-bently-nevada-990-series-vibration-transmitter","title":"990-04-XX-01-05 MOD:165335-01 Bently Nevada 990 Series Vibration Transmitter","description":"\u003cp\u003eConfigured for casing vibration monitoring, the \u003cstrong\u003eBently Nevada 990-04-XX-01-05 MOD:165335-01\u003c\/strong\u003e (\u003cstrong\u003e990-04-XX-01-05\u003c\/strong\u003e Vibration Transmitter) provides direct physical signal processing and 4-20 mA output transmission for machine protection.\u003c\/p\u003e\n\u003ch3\u003eConfiguration Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e990: Base Model (Vibration Transmitter)\u003c\/li\u003e\n\u003cli\u003e04: 0-4 mils pp (0-100 um pp) range\u003c\/li\u003e\n\u003cli\u003eXX: System length (5.0 m or 7.0 m dependent on install)\u003c\/li\u003e\n\u003cli\u003e01: 35 mm DIN-rail mounting clips\u003c\/li\u003e\n\u003cli\u003e05: Hazardous area approval (CSA Div 2, ATEX Zone 0\/2, ABS maritime)\u003c\/li\u003e\n\u003cli\u003eMOD: 165335-01 factory configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware 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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e990-04-XX-01-05 MOD:165335-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.44 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e10 x 7.5 x 5.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e23 mA typical (current limiting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\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\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e10 kOhm (Prox Out calibrated for 10 MOhm load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eMechanical Monitoring and Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe 990 transmitter facilitates accurate eddy-current probe scaling for vibration velocity measurement. System commissioning requires gap voltage validation against -10 VDC targets to ensure linear measurement within the transducer loop. Signal fidelity is maintained through internal filtering and cross-talk suppression circuitry, which mitigates interference in multi-channel installations. The non-interacting external zero and span adjustments allow for rapid calibration to site-specific rotor dynamics, ensuring that the processed 4-20 mA output accurately reflects machine vibration behavior.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 990-04-XX-01-05 Vibration Transmitter\u003c\/li\u003e\n\u003cli\u003e1 x 35 mm DIN-rail mounting hardware kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical Mounting: Mount the transmitter on a 35 mm DIN rail in a clean, dry location protected from direct environmental exposure.\u003c\/li\u003e\n\u003cli\u003eElectrical Termination: Ensure correct polarity for all connections. Use shielded cabling to connect the proximity probe input and the 4-20 mA current loop output.\u003c\/li\u003e\n\u003cli\u003eGrounding: Connect the transmitter case to a verified system ground to minimize EMI and common-mode noise on the signal output.\u003c\/li\u003e\n\u003cli\u003eConfiguration: Adjust the non-interacting zero and span controls using a high-impedance (10 MOhm) digital multimeter for precise signal mapping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCan this transmitter be used in hazardous locations?\u003c\/p\u003e\n\u003cp\u003eYes, the -05 suffix provides ratings for CSA Division 2 and ATEX Zone 0\/2. Verify installation drawings for specific intrinsic safety barrier requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the Prox Out signal used?\u003c\/p\u003e\n\u003cp\u003eThe Prox Out port provides a buffered raw signal for diagnostic analysis, such as waveform viewing on an oscilloscope or vibration analyzer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the effect of a load impedance lower than 10 MOhm on Prox Out?\u003c\/p\u003e\n\u003cp\u003eLoading the output below 10 MOhm will cause signal attenuation and phase shift, leading to errors in diagnostic data interpretation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAre the zero and span adjustments interlinked?\u003c\/p\u003e\n\u003cp\u003eNo, the internal design is non-interacting, allowing for independent adjustment of the 4-20 mA endpoints without iterative calibration cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs this transmitter compatible with all Bently Nevada probes?\u003c\/p\u003e\n\u003cp\u003eIt is designed for standard 8 mm 3300 XL probe systems. Compatibility with other probe series should be verified via technical documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the purpose of the 23 mA current limiting?\u003c\/p\u003e\n\u003cp\u003eThis circuit protects the transmitter circuitry and the downstream control system input from high-current damage during fault conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does the transmitter handle frequency responses outside of 5 Hz to 6,000 Hz?\u003c\/p\u003e\n\u003cp\u003eSignals outside this range are attenuated. Operation near the 6,000 Hz limit will experience roll-off according to the -3 dB specification.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan I replace the mounting clips in the field?\u003c\/p\u003e\n\u003cp\u003eYes, the 35 mm DIN-rail clips are mechanical components and can be replaced if damaged, provided the unit housing remains intact.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46026790830253,"sku":"990-04-XX-01-05 MOD:165335-01","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/990-04-50-01-00_1_3.jpg?v=1783405133","url":"https:\/\/www.maxwellplc.com\/ru\/products\/990-04-xx-01-05-mod-165335-01-bently-nevada-990-series-vibration-transmitter","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}