2300/20-00 | Bently Nevada Vibration Monitor with 4-20 mA Outputs

Introduction: The Evolution of Vibration Monitoring

Industrial machinery has grown more complex, and so have the demands on monitoring systems. Early vibration monitors provided basic readings, but modern plants require precise, configurable, and reliable data. The 2300/20-00 from Bently Nevada represents a significant step forward, combining advanced signal processing with flexible output options. It is engineered to help you protect critical rotating equipment while simplifying integration into existing control systems.

What Is the 2300/20-00?

The 2300/20-00 is a vibration monitor designed for continuous online monitoring. It supports multiple channel types, including ICP accelerometers, velocity sensors, radial vibration probes, thrust channels, and process variables. With a full-scale accuracy of ±1%, it provides reliable data for condition monitoring and alarm management.

This model includes two 4-20 mA outputs with internal current loop power, making it easy to interface with PLCs, DCS, or SCADA systems. The monitor also offers Ethernet communication (10Base-T and 100Base-TX) for remote access and configuration.

Key Features and Technical Specifications

• Power input: 18–36 Vdc, max 7.5 W
• Channel types: ICP accelerometers, velocity, radial vibration, thrust, process variable, speed/keyphasor
• Configurable bandpass filters: 0.2 Hz to 20 kHz
• Scale factor range: 5 to 1000 mV/g (accelerometers), 5 to 1000 mV/in/s (velocity), 5 to 1000 mV/mil (radial/thrust)
• Full-scale ranges: 2 to 80 g peak (accel), 0 to 50 in/s peak (velocity), 0 to 160 mil peak-peak (radial)
• Accuracy: ±1% of full scale range
• Independent 24-bit ADCs on input channels
• Two 4-20 mA outputs, load resistance 0–600 Ω, resolution 0.3662 µA
• Update rate: 100 ms
• Ethernet: 10Base-T/100Base-TX, RJ-45, cable length up to 100 m
• Operating temperature: -30°C to +65°C
• Storage temperature: -40°C to +85°C
• Humidity: up to 95% non-condensing
• Dimensions: 127 mm x 127 mm x 76.2 mm (5 in x 5 in x 3 in)
• Weight: 1.03 kg (2.26 lbs)
• Mounting: panel mount or DIN rail (adapter included)

One distinctive feature is the independent 24-bit ADCs on each input channel. This ensures simultaneous sampling and high resolution, which is critical for accurate phase and amplitude measurements in multi-channel applications.

Applications and Use Cases

The 2300/20-00 is suitable for a wide range of rotating machinery, including pumps, motors, fans, compressors, and turbines. Its configurable inputs allow it to adapt to different sensor types, making it a versatile choice for both OEM and retrofit installations.

In a typical scenario, the monitor can be used to track radial vibration on a centrifugal pump. The 4-20 mA outputs can feed directly into a PLC for continuous trend recording, while the relay outputs provide alarm and trip functions. This combination helps prevent unplanned downtime and reduces maintenance costs.

Installation and Setup

Mounting the 2300/20-00 is straightforward. It can be panel-mounted or snapped onto a DIN rail using the included adapter. The monitor accepts DC power from 18 to 36 Vdc, and the internal current loop supply simplifies wiring for the 4-20 mA outputs.

For Ethernet connectivity, use standard RJ-45 cabling up to 100 meters. The monitor conforms to IEEE 802.3, ensuring compatibility with most industrial networks. Configuration is done via the built-in LCD display or through the provided software.

Maintenance and Reliability

Routine maintenance is minimal. The monitor has no moving parts, and its solid-state design contributes to long-term reliability. The real-time clock battery is rated for 38 years when powered and 12 years unpowered at 50°C, so you can set it and forget it.

Regularly inspect the unit for dust accumulation and ensure proper ventilation. Also, verify that all connections remain tight and that the Ethernet cable is not damaged. Following the manufacturer's guidelines will help maintain accurate readings.

Compatibility and Integration

The 2300/20-00 communicates via Ethernet, making it easy to integrate with Bently Nevada's System 1 software or any standard OPC client. The two 4-20 mA outputs can be configured to transmit any measured variable, providing flexibility for legacy control systems.

It also supports Bently transducers and 2/3-wire custom sensors, ensuring compatibility with existing installations. The monitor can store alarm data locally, which is useful during network disruptions.

Common Questions

Q: What is the accuracy of the 2300/20-00?

A: The accuracy is ±1% of full scale range for measurement channels, and 1% over operating temperature for the 4-20 mA outputs.

Q: Can the 4-20 mA outputs be used with an externally powered loop?

A: No, the two 4-20 mA outputs are designed for internal current loop power only. Do not use an external loop supply.

Q: What is the maximum cable length for Ethernet?

A: The maximum cable length is 100 meters (328 ft) using standard RJ-45 cabling.

Q: Does the monitor support DIN rail mounting?

A: Yes, a DIN rail adapter is included with the 2300/20-00.

Q: What is the update rate for the 4-20 mA outputs?

A: The update rate is 100 ms.

Support and Availability

The 2300/20-00 is available from Petro Auto Tech. Please contact us to confirm current lifecycle status and availability before ordering. We are here to help you with your industrial automation needs.