Product Overview

The Bently Nevada 1900/65, specifically the 167669-01 configuration, is a high-performance standalone monitor designed for the comprehensive protection of non-critical and "balance of plant" rotating machinery. This specific model distinguishes itself by incorporating an integrated Modbus communication gateway, allowing it to function both as a localized hardware protection device and as a digital data provider for plant-wide networks. It continuously tracks vibration and temperature levels, providing real-time relay logic to prevent equipment damage while simultaneously feeding status logs and static variables to higher-level control systems. It is the ideal solution for facilities moving toward digital transformation and Industry 4.0 integration.

Hardware Parameters and Key Technical Characteristics

The 167669-01 module is engineered to provide high-density monitoring in a compact, DIN-rail mountable form factor, supporting diverse sensor inputs and networked communication protocols.

• Model Number 1900/65

• Order Number 167669-01

• Communication Protocols Modbus TCP/IP (Ethernet) and Modbus RTU (Configurable RS232/RS485)

• Transducer Inputs 4 Dynamic channels (Accelerometers, Velocity sensors, or Proximity probes)

• Thermal Inputs 4 Static channels (RTDs and Thermocouples)

• Control Outputs 6 Configurable Relays (for Alert, Danger, and Not OK status)

• Analog Interface 4 Recorder outputs (4-20 mA DC)

• Signal Analysis 4 Buffered BNC outputs for raw dynamic signal access

• Power Supply 18 to 36 Vdc (24V nominal)

• Data Logging Internal event list with time-synchronization capabilities

• Environment Rating Rugged industrial construction for panel mounting

Industrial Applications and Operational Use Cases

The 1900/65 167669-01 serves as a critical bridge between localized machinery protection and centralized asset management software like System 1.

• Small Turbines and Compressors Monitoring radial vibration and bearing temperatures while providing a digital data stream to a PLC or DCS.

• Integrated Pump Stations Utilizing the Modbus gateway to transmit equipment health data across an Ethernet network to a central SCADA system.

• Cooling Tower Management Providing hardware-based trip protection for fan assemblies with the ability to remotely view vibration trends via Modbus.

• Smart Factory Integration Serving as an edge-device for Industry 4.0 initiatives, where timestamped event logs are required for forensic machinery analysis.

• Distributed Condition Monitoring Replacing multiple isolated transmitters with a single, networked monitor that aggregates both temperature and vibration variables.