{"product_id":"bently-nevada-990-04-50-02-05-industrial-automation-module","title":"Bently Nevada 990-04-50-02-05 Industrial Automation Module","description":"\u003ch2\u003eProduct Overview: Bently Nevada 990-04-50-02-05 990 Vibration Transmitter\u003c\/h2\u003e\u003cp\u003eWhen vibration monitoring is critical for machine protection, the Bently Nevada 990-04-50-02-05 delivers reliable 4-20 mA output with fast signal defeat on faults. This 990 Vibration Transmitter accepts one non-contacting 3300 NSv Proximity Probe and extension cable, converting vibration measurements into a proportional 4-20 mA signal. It is designed for hazardous and non-hazardous environments, with agency approvals including CSA Division 2, ATEX Zone 0, ATEX Zone 2, and ABS maritime approval.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd\u003e0-4 mils pp (0-100 μm pp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length Option\u003c\/td\u003e\n\u003ctd\u003e5.0 metres (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Option\u003c\/td\u003e\n\u003ctd\u003e02 Bulkhead screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approvals\u003c\/td\u003e\n\u003ctd\u003eCSA Division 2, ATEX Zone 0, ATEX Zone 2, ABS maritime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e1 non-contacting 3300 NSv Proximity Probe and extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc at transmitter terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Loop Resistance\u003c\/td\u003e\n\u003ctd\u003e1,000 Ω including cable at 35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limiting\u003c\/td\u003e\n\u003ctd\u003e23 mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 20 mA Signal Output\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mAdc over full-scale range in 2-wire configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 20 mA Loop Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin ±1.5% over full-scale range (across 250 Ω load, excluding Prox Out Incremental Scale Factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Gap\u003c\/td\u003e\n\u003ctd\u003e0.5 to 1.75 mm (20 to 55 mils) from target\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\u003eMinimum Target Size\u003c\/td\u003e\n\u003ctd\u003e9.5 mm (0.375 in) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeadwire Length (BNC)\u003c\/td\u003e\n\u003ctd\u003eMaximum 3 meters (10 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Weight\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications: Real-World Use Cases\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 990-04-50-02-05 is ideal for monitoring rotating machinery such as turbines, pumps, and compressors. In environments prone to sensor failure, its NOT OK signal defeat feature forces the output below 3.6 mA within 100 µs of a fault, alerting control systems to take immediate action. This capability is critical in petrochemical plants, power generation, and marine applications where unplanned downtime can be costly. The transmitter's ±1.5% loop accuracy ensures precise vibration data, enabling predictive maintenance schedules.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the Bently Nevada 990-04-50-02-05 using the bulkhead screw option. Ensure the probe gap is set between 0.5 and 1.75 mm to achieve full-scale range. The BNC leadwire from the Proximitor Sensor output must not exceed 3 meters to maintain signal integrity. Power the transmitter with +12 to +35 Vdc at the terminal, observing the maximum loop resistance of 1,000 Ω at 35 Vdc. Use non-interacting external adjustments for zero and span calibration.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 990-04-50-02-05 requires minimal maintenance due to its robust design. The non-interacting zero and span adjustments simplify calibration, reducing labor costs. The NOT OK\/signal defeat feature automatically detects probe or cable faults, protecting downstream equipment. For long-term reliability, verify the probe gap and cable connections during routine inspections. This transmitter withstands harsh conditions thanks to its ATEX and CSA approvals.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eWhen selecting the Bently Nevada 990-04-50-02-05, verify the full-scale option (0-4 mils pp) and system length (5.0 metres) match your application requirements. Confirm the mounting option (bulkhead screws) and agency approval (Option 05) are suitable for your hazardous area classification. For genuine spares and fast delivery, trust PLC Source PRO (formerly ubest101). We stock this exact model and support industrial automation needs worldwide.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416515735651,"sku":"990-04-50-02-05","price":264.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-990-04-50-02-05-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}