{"product_id":"bently-nevada-990-04-70-02-01-industrial-automation-module","title":"Bently Nevada 990-04-70-02-01 Industrial Automation Module","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWhen critical machinery vibrations go undetected, unplanned downtime and costly repairs follow. The Bently Nevada 990-04-70-02-01 Vibration Transmitter provides continuous, accurate vibration monitoring to protect your rotating assets. This 990 series transmitter accepts one non-contacting 3300 NSv Proximity Probe and extension cable, converting vibration into a standard 4-20 mA signal for easy integration with PLCs, DCS, or standalone indicators. Built for reliable performance in demanding industrial environments, the 990-04-70-02-01 is a cost-effective solution for reducing maintenance costs and extending equipment life.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eThe 990-04-70-02-01 is configured with a full-scale option of 0-4 mils pp (0-100 μm pp) and a system length of 7.0 meters (23.0 feet). Key parameters include:\u003c\/p\u003e\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 to 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\u003eAccuracy:\u003c\/strong\u003e Within ±1.5% over specified full-scale range (test signal to 250 Ω load).\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\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\u003eWeight:\u003c\/strong\u003e 0.43 kg (0.9 lbm).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgency approval:\u003c\/strong\u003e CSA Division 2 (Non-Hazardous, Zone 2 or Div 2).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese specs ensure accurate vibration measurement for predictive maintenance, helping avoid unexpected failures.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 990-04-70-02-01 is ideal for monitoring vibration on fans, pumps, compressors, and turbines in industries such as oil \u0026amp; gas, power generation, and manufacturing. By providing real-time 4-20 mA output to a control system, operators can track bearing wear, imbalance, and misalignment. This early detection translates to reduced unplanned downtime, optimized maintenance schedules, and lower total cost of ownership.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the transmitter using bulkhead screws (mounting option 02). Connect the 3300 NSv probe and extension cable to the transmitter input. Power the unit with +12 to +35 Vdc at the terminals. The probe must be gapped between 0.5 and 1.75 mm (20 and 55 mils) from the target to ensure full-scale range. Use zero and span adjustments non-interactively for calibration. For the Proximitor Sensor Output (BNC connector), keep cable distance under 3 meters (10 feet). Ensure loop resistance does not exceed 1,000 Ω at 35 Vdc.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe 990-04-70-02-01 includes a NOT OK\/signal defeat feature: output drops below 3.6 mA within 100 µs of a fault, and restores within 2-3 seconds after fault removal. This built-in diagnostic capability simplifies troubleshooting and reduces false alarms. Routine checks of probe gap and cable integrity ensure long-term reliability. With proper installation, this transmitter delivers years of maintenance-free operation, maximizing return on investment.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore ordering, verify your full-scale range requirement (0-4 mils pp for this model) and system length (7.0 meters). Confirm mounting option and agency approval. The Bently Nevada 990-04-70-02-01 is available from ubest101, a trusted supplier of industrial automation spares. Ensure you have the correct probe and cable to match this transmitter. For assistance, contact our technical team.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416574849123,"sku":"990-04-70-02-01","price":277.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-990-04-70-02-01-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}