Bently Nevada 1900/65A-01-00-01-00-00 General Equipment Vibration Monitor

Bently Nevada 1900/65A-01-00-01-00-00 is a general-purpose equipment monitor from the 1900 series. It supports multi-type sensor inputs for continuous vibration and temperature measurement of rotating machinery, with built-in two-stage alarm and relay trip protection logic.

This monitor integrates 4-20mA analog output and optional Modbus RTU communication, and can send real-time machine health data to DCS and SCADA systems. It is widely used as spare replacement for pumps, fans and compressors monitoring cabinet maintenance in power and petrochemical plants.

Main Specifications

1. Brand: Bently Nevada; Model:1900/65A-01-00-01-00-00; Type: General Equipment Vibration Monitor
2. Inputs: Vibration sensors, thermocouple, RTD and proximity probe inputs; 4 analog + 4 digital channels
3. Power Supply:18~36VDC; Mounting: panel or rack mounting; Weight: about 0.77kg
4. Outputs: 4-20mA analog output; 6 configurable relay contacts for alert and danger trip
5. Communication: Optional Modbus RTU; Alarm: two levels, Alert and Danger with independent threshold setting
6. Operating Temperature: -40℃ ~ +85℃; Industrial cabinet environment, anti-vibration design
7. Supply Status: Original Bently Nevada spare monitor for rotating machinery protection system overhaul

Core Functions

1. Continuously collect vibration and temperature signals from sensors to evaluate the health status of rotating equipment.
2. Support independent configuration of Alert and Danger thresholds to trigger graded warning and shutdown protection.
3. 6 programmable relay outputs for interlock control, automatically trip equipment when serious fault occurs.
4. 4-20mA analog signal transmits measurement data to DCS/SCADA, Modbus RTU for digital data transmission.
5. Built-in hardware self-diagnosis function to detect sensor disconnection, short circuit and internal module faults.
6. Panel or rack mounting design, flexible installation and convenient replacement during on-site maintenance work.

Application Scenarios

1. Condition monitoring and protection unit for pumps, fans, blowers, compressors and small turbines.
2. Fault monitor replacement and routine maintenance of existing Bently Nevada machinery protection systems.
3. Power plant, petrochemical, pulp & paper and mining industry rotating equipment safety monitoring projects.
4. Emergency replacement for monitor failure to restore vibration monitoring and equipment trip protection function.
5. Spare parts stocking for maintenance teams supporting Bently Nevada 1900 series monitoring systems.
6. Aftermarket spare supply for monitoring cabinet upgrade and rotating machine predictive maintenance reconstruction.

FAQ

1. Q: What types of sensors can connect to Bently Nevada 1900/65A-01-00-01-00-00?
   A: It works with velocity sensors, accelerometers, proximity probes and thermocouple/RTD temperature sensors.
2. Q: What are typical monitor failure symptoms?
   A: No vibration reading, false alarm triggering, relay output failure, loss of analog or Modbus signal.
3. Q: How to complete commissioning and diagnosis?
   A: Install the unit, connect sensors and power supply, set alarm thresholds and test relay interlock output.