Description
The Bently Nevada 1900/65A-01-01-01-00-00 is a flexible, stand-alone vibration and temperature monitor designed for “General Purpose” machinery—assets that are essential to a process but do not necessarily require the full complexity of a 3500 rack system. It provides continuous monitoring, alarm, and protective shutdown capabilities.
Product Parameters (Datasheet)
- Model Number: 1900/65A-01-01-01-00-00
- Input Channels: 4 Dynamic (Vibration/Position) and 4 Static (Temperature/Process)
- Power Option: -01 (18 to 36 Vdc)
- Enclosure Option: -01 (Weatherproof, NEMA 4X / IP66 rated)
- Display Option: -01 (Integrated front-panel display for local monitoring)
- Mounting Option: -00 (Standard wall/panel mount)
- Agency Approvals: -00 (None/Non-hazardous areas)
- Relay Outputs: 6 user-programmable relays (Typically 4 Alert/Danger and 2 dedicated to Fault)
- Analog Outputs: 4 to 20 mA proportional outputs for SCADA/PLC integration
BENTLY 1900/65A-01-01-01-00-00
BENTLY 1900/65A-01-01-01-00-00
BENTLY 1900/65A-01-01-01-00-00
Country of Origin
This machinery protection system is manufactured by Bently Nevada (a Baker Hughes business) in the United States, adhering to ISO 9001 standards for industrial instrumentation.
Application Fields
The 1900/65A is the standard choice for “Essential” assets that require reliable, cost-effective protection:
- Cooling Tower Fans: Monitoring motor vibration and gearbox temperature.
- Small Pumps and Motors: Protecting against cavitation, unbalance, or bearing failure.
- Centrifugal Air Compressors: Oversight of radial vibration and axial position.
- Blowers and Exhausters: Providing automated shutdown for high-vibration events in ventilation systems.
Product Usage Instructions
- Mounting: Install the IP66-rated enclosure close to the machine. Ensure the cable entry points are facing downward to prevent moisture ingress.
- Transducer Connection: Connect Proximitor sensors, accelerometers, or Velomitors to the four dynamic channels. Connect RTDs or Thermocouples to the four static channels.
- Power: Provide a clean 24V DC (18-36V range) power supply. Ensure the monitor is properly grounded to the industrial earth system.
- Configuration: Use the 1900 Configuration Software (via the serial or Ethernet port) to set transducer types, scale factors, and alarm setpoints (Alert/Danger).
- Relay Integration: Wire the Danger relays into the machine’s emergency stop (E-Stop) circuit. Use the “Latching” feature if you want the alarm to stay active until manually cleared.
Product Technical Description
The 1900/65A functions as a self-contained protection system. Technically, it integrates high-speed signal processing with programmable logic. It can calculate multiple “Variables” from a single sensor—for example, a single accelerometer input can provide both Peak-to-Peak displacement and RMS velocity. The module includes internal diagnostics that monitor the health of both the sensor (OK circuit) and the monitor’s own internal circuitry, ensuring that a hardware failure doesn’t cause a nuisance trip or, worse, fail to trip during a real event.
Q&A (Common Questions)
Q: Can I view waveforms on the 1900/65A? A: Yes. While the front display shows digital values, the monitor provides buffered outputs for each dynamic channel. You can connect a portable data collector or oscilloscope to these ports for spectral analysis.
Q: Does it support Modbus communication? A: Yes, the 1900/65A supports Modbus RTU/TCP protocols, allowing it to feed all vibration and temperature data directly into a PLC or HMI without extra analog wiring.
Q: What is the difference between the 1900/65 and the 1900/65A? A: The “A” version is an enhanced revision featuring improved internal electronics, better display options, and updated firmware compatibility compared to the original legacy model.
Q: Can this be used in hazardous locations? A: This specific part number (-00 approvals) is for non-hazardous areas. For Class I Div 2 or ATEX Zone 2, a different approval option must be selected at the time of order.
Similar Model Recommendations
- Bently Nevada 1900/55 (Earlier legacy version)
- Bently Nevada 2300/20 (Two-channel compact monitor)
- Bently Nevada 3500/42M (Rack-based monitoring module)
- Bently Nevada 1900/65A-00-00-01-00-00 (AC power variant)
- Bently Nevada 330400 (Accelerometers commonly used with this monitor)
For technical assistance or a quote on the Bently Nevada 1900/65A-01-01-01-00-00, please contact our machinery protection specialists.
