{"product_id":"bently-nevada-990-04-70-03-00-industrial-automation-module","title":"Bently Nevada 990-04-70-03-00 Industrial Automation Module","description":"\u003cp\u003eThe Bently Nevada 990-04-70-03-00 990 Vibration Transmitter provides reliable, real-time vibration monitoring for critical rotating machinery. Designed for hazardous environments, this industrial automation module ensures early detection of faults, reducing unplanned downtime.\u003c\/p\u003e\n\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 990-04-70-03-00 is a 990 Vibration Transmitter that converts proximity probe signals into a 4-20 mA output. It accepts one non-contacting 3300 NSv Proximity Probe and extension cable. With a full-scale option of 0-4 mils pp (0-100 μm pp) and a 7.0-meter system length, it offers precise vibration measurement. The transmitter weighs 0.43 kg and is powered by +12 to +35 Vdc.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e Accepts 1 non-contacting 3300 NSv Proximity Probe and extension cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e Requires +12 to +35 Vdc input at the transmitter terminal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA Signal Output:\u003c\/strong\u003e 4 to 20 mAdc over specified full-scale range in 2-wire configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Accuracy:\u003c\/strong\u003e Within ±1.5% over specified full-scale range (additional to Prox Out Incremental Scale Factor).\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\u003eFrequency Response:\u003c\/strong\u003e 5 Hz to 6,000 Hz +0, 3 dB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNOT OK\/Signal Defeat:\u003c\/strong\u003e Output goes to less than 3.6 mA within 100 µs after Not OK; restores within 2-3 seconds after condition removed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero and Span:\u003c\/strong\u003e Non-interacting external adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Gap:\u003c\/strong\u003e Must be gapped between 0.5 and 1.75 mm (20 and 55 mils) from target.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Target Size:\u003c\/strong\u003e 9.5 mm (0.375 in) diameter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeadwire Length (Proximitor Sensor Output):\u003c\/strong\u003e Maximum 3 meters (10 feet) via BNC connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Area:\u003c\/strong\u003e Suitable for Non-Hazardous, Zone 2, or Div 2 locations (Power Supply: 28 V).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 990-04-70-03-00 vibration transmitter excels in machinery protection for turbines, compressors, pumps, and fans. In a typical application, it monitors shaft vibration and alerts operators to developing faults. The fast NOT OK response (\u0026lt; 100 µs) ensures immediate shutdown protection, preventing catastrophic failures. Its robust 4-20 mA output integrates seamlessly with PLCs and DCS systems.\u003c\/p\u003e\n\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\n\u003cp\u003eMount the Bently Nevada 990-04-70-03-00 using DIN clips and screws (Mounting Option 03). Connect the 3300 NSv probe and extension cable with the correct leadwire length (max 3 m). Gap the probe between 0.5 and 1.75 mm from the target. Power the transmitter with +12 to +35 Vdc at the terminal. Adjust zero and span using the non-interacting external pots. Verify loop resistance does not exceed 1,000 Ω.\u003c\/p\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; Common Issues\u003c\/h2\u003e\n\u003cp\u003eThe Bently Nevada 990-04-70-03-00 includes built-in fault detection: if a probe or cable fault occurs, the output drops below 3.6 mA within 100 µs. This ensures that downstream systems detect a lost signal immediately. Common issues include incorrect probe gap or excessive loop resistance. Always verify the supply voltage is between +12 and +35 Vdc. If the signal does not restore after a fault, check the probe and cable continuity. The current limiting (23 mA typical) prevents damage to the loop.\u003c\/p\u003e\n\u003ch2\u003eBuying Guide\u003c\/h2\u003e\n\u003cp\u003eWhen selecting the Bently Nevada 990-04-70-03-00, confirm your full-scale range (option 04: 0-4 mils pp) and cable length (option 70: 7.0 m). Ensure your system accepts a 4-20 mA input and that the loop resistance is within limits. For expert advice, purchase from PLC Source PRO (available at ubest101.myshopify.com) – a trusted source for industrial automation spares.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416583991395,"sku":"990-04-70-03-00","price":210.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-990-04-70-03-00-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}