Bently Nevada 1900/65A-01-00-01-00-00 Mechanical Protection monitor
The 1900/65A-01-00-01-00-00 Monitor is suitable for monitoring and protecting cooling tower fans, pumps, blowers, motors, pulverizers, air compressors, small reciprocating compressors, small electric motors, small hydro turbines, centrifuges, and other equipment assets. It can be easily retrofit on existing machines or used by original equipment manufacturers (OEMs) for cost-effective inclusion on smaller skid-mounted and packaged machines.
The 1900/65A-01-00-01-00-00 provides extensive capabilities: eight input channels; six configurable alarm relays; four 4-20 mA outputs; buffered output facilities for easy connection to portable diagnostic instruments; Microsoft® Windows®-based configuration software; an optional easy-to-read display that can be mounted locally or up to 75 meters (250 feet) away; and an optional IP65-rated weatherproof housing (or door for panel-mount applications).
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1900/65A-01-00-01-00-00 |
| Manufacturer | Bently Nevada (GE Vernova) |
| Product Type | Machinery Protection Monitor |
| Input Channels | 4 (2x Proximity, 1x Velocity, 1x Thermocouple) |
| Measurement Range | 0-25mm (displacement), 0-50mm/s (velocity) |
| Accuracy | ±0.5% FS @ 25°C |
| Sampling Rate | 51.2kHz (anti-aliased) |
| Communication | MODBUS TCP, PROFIBUS-DP, HART 7 |
| Power Supply | 85-264VAC/18-36VDC (dual redundant) |
| Operating Temp | -40°C to +85°C |
| Enclosure Rating | IP66 (NEMA 4X) |
| Certifications | ATEX II 3G, SIL 2, API 670 |
| Dimensions | 144×144×200mm (1/4 DIN) |
| Weight | 2.8kg |
Key Features and Advantages:
Multiphysics sensing fusion: The Bently Nevada 1900/65A-01-00-01-00-00 uniquely combines vibration, position, and temperature measurements with phase reference inputs for complete mechanical health assessment. Its embedded FFT analyzer detects sub-synchronous vibrations down to 0.1Hz resolution.
Cybersecurity hardened: Featuring FIPS 140-2 validated secure boot and role-based access control (RBAC), this monitor prevents unauthorized parameter changes. All communication channels support OPC UA encryption with automatic certificate rotation every 24 hours.
Adaptive diagnostics: Machine learning algorithms automatically track 12 bearing defect frequencies and generate wear progression reports. The module’s 64GB non-volatile memory stores 180 days of waveform data for post-failure analysis.
Application Areas:
The Bently Nevada 1900/65A-01-00-01-00-00 excels in:
- Power generation: Steam turbine bearing cap vibration monitoring
- Oil & gas: Centrifugal compressor rotor unbalance detection
- Marine: Propulsion gearbox mesh frequency analysis
- Mining: Ball mill trunnion bearing temperature protection
In petrochemical cracker plants, this configuration simultaneously monitors reactor feed pump vibrations, turbine thrust position, and catalyst fan temperatures while withstanding 98% sulfuric
Related Products:
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- 3500/92-01-01-00: Vibration monitoring relay
- 1900/COM-01: Field communication gateway
- System 1™ APM: Asset performance management software
- 1900/PS-24V: DIN-rail power supply
- 1900/ACC-01: Accelerometer input module
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