Description
The Bently Nevada 1900/65A (167699-02) is a versatile, cost-effective, and configurable equipment monitor designed for the continuous protection and monitoring of balance-of-plant assets. This monitor provides a robust solution for critical and auxiliary equipment, integrating seamlessly into existing control systems.
Features
- Four transducer inputs supporting 2- and 3-wire accelerometers, velocity sensors, or proximity sensors.
- Four temperature inputs supporting Type E, J, K, and T thermocouples, and 2- or 3-wire RTDs.
- Six configurable relay outputs for alarm and status management.
- Four 4-20 mA recorder outputs for external data logging.
- Dedicated buffered outputs for each transducer input for portable diagnostic analysis.
- Supports acceleration enveloping algorithms for enhanced vibration analysis.
- Optional remote display/keypad capability for stand-alone operation up to 75 meters away.
- Modbus communication support via Ethernet and serial (RS232/485) ports.
Applications
- Rotating Machinery Protection: Monitors pumps, motors, fans, blowers, and centrifuges.
- Process Industry Monitoring: Suitable for oil and gas, power generation, mining, and cement plant auxiliary equipment.
- OEM & Skid-Mounted Units: Ideal for integration into packaged or skid-mounted OEM machinery.
- Predictive Maintenance: Enables early detection of wear, misalignment, and imbalance.
Technical Specifications
| Product Model |
1900/65A 167699-02 |
| Spare Model |
172323-01 |
| Weight |
0.98 kg |
| 3-wire Voltage Mode |
10 kOhm |
| Bias Voltage |
-24 V |
| Vibration Variables |
+/- 1% of full scale range |
| Bias Filter |
0.09 Hz 1-pole low-pass |
| OK Filter |
2.4 kHz 1-pole low-pass |
Installation Guidelines
- Electrostatic Discharge (ESD): Always use a grounded wrist strap when handling the module to prevent damage to internal circuitry.
- Power Down: Ensure the system power is disconnected before installing or removing the module from the rack.
- Wiring: Use shielded cables for transducer inputs to minimize EMI interference. Ensure proper grounding of cable shields at the monitor end.
- Environment: Install in a clean, dry environment within the specified temperature range. Ensure adequate ventilation around the module for cooling.
- Configuration: Use the Bently Nevada 1900 Configuration software to set up transducer types, alarm setpoints, and relay logic prior to full operation.
FAQ
What is the 1900/65A?
The Bently Nevada 1900/65A General Purpose Equipment Monitor is a configurable, cost-effective, stand-alone system for continuous monitoring and protection of balance-of-plant assets, featuring eight input channels, six relays, and Modbus communication.
What equipment can the 1900/65A monitor?
It is designed for balance-of-plant equipment, such as cooling tower fans, pumps, blowers, motors, centrifuges, and small hydro turbines.
Does the 1900/65A support Modbus?
Yes, it supports Modbus communications via Ethernet and an RS232/485 serial port to interface with DCS, PLC, or SCADA systems.
