The Bently Nevada 990-05-50-01-05 is a loop-powered 4-20 mA vibration transmitter. It provides non-contact displacement monitoring for industrial machinery through PLC and DCS integration.
The Bently Nevada 990-05-50-01-05 serves as a high-precision, loop-powered vibration transmitter. This device integrates directly with Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS). It converts proximity probe signals into a standard 4-20 mA output. Consequently, operators receive continuous machinery health data without dedicated monitoring racks. This streamlined approach allows for cost-effective protection of less critical rotating assets. Furthermore, it provides a reliable interface for real-time vibration displacement tracking.
| Feature | Technical Detail |
| Manufacturer | Bently Nevada |
| Model Number | 990-05-50-01-05 |
| Series | 990 Vibration Transmitter |
| Output Signal | 4 to 20 mA DC |
| Probe Compatibility | 3300 NSv and 3300 RAM Probes |
| System Length | 5.0 Meters (Total) |
| Mounting | 35mm DIN rail or Panel Mount |
| Weight | 0.54 kg |
| Agency Approvals | Multiple hazardous area ratings available |
Maintenance teams typically deploy this transmitter on pumps, fans, and centrifugal compressors. It performs exceptionally well in power generation and petrochemical processing environments. Because the unit features a rugged housing, it withstands intense industrial conditions. The transmitter handles significant temperature fluctuations and high humidity levels effectively. Additionally, the compact design fits easily into localized junction boxes near the machinery. This placement reduces wiring costs for large-scale facility installations.
The 990-05-50-01-05 provides superior resistance against electromagnetic interference (EMI). This ensures signal stability even when located near high-voltage motor starters. Moreover, the device includes a buffered output for manual diagnostic access. This allows technicians to connect portable analyzers for deep-dive waveform investigation. The non-isolated design simplifies loop wiring for standard industrial power supplies. These engineering choices maximize uptime while lowering the total cost of ownership.
This transmitter simplifies the transition to predictive maintenance strategies. It allows facilities to monitor vibration levels through existing control infrastructure. Furthermore, the 35mm DIN rail mounting allows for rapid installation and replacement. The 990 series eliminates the need for complex, rack-based signal processing hardware. This modularity improves system scalability as plant requirements expand. Overall, the 990-05-50-01-05 offers a dependable solution for 24/7 industrial asset protection.
The Emerson EPRO PR6424/006-111 is a 10mm eddy current displacement sensor for non-contact shaft vibration and position monitoring. Featuring a ruggedized ceramic tip, CON031 connector, and high thermal stability, this probe provides reliable real-time diagnostics for turbines and compressors in compliance with API 670 standards.
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