Product Overview: Bently Nevada 2300/20-02

The 2300/20-02 provides continuous machinery protection for rotating equipment. This monitor accepts ICP accelerometers, Velomitor sensors, and Proximitor probes. It operates on 18 to 36V DC power with maximum 7.5W consumption. Manufactured in the U.S.A., the 2300/20-02 features robust industrial construction. For mounting flexibility, it includes both panel mount capability and a DIN rail adapter.

Technical Specifications

The 2300/20-02 has independent 24-bit ADCs on all input channels. Measurement accuracy reaches ±1 percent of full scale range. RPM measurement spans from 1 to 120,000 on this device. Speed inputs can accept magnetic pickup sensors with proper adapters. Meanwhile, the monitor supports a wide range of environmental conditions.

• Power Input: 18 to 36V DC, 7.5W max

• Operating Temperature: -30°C to +65°C (-22°F to +149°F)

• Storage Temperature: -40°C to +85°C (-40°F to +185°F)

• Humidity: Up to 95 percent, non-condensing

• Vibration Limit: 3g maximum

• Dimensions: 127 x 127 x 76.2 mm (5 x 5 x 3 inches)

The 2300/20-02 weighs 1.03 kg (2.26 lbs). Using the included adapter, the unit mounts on a panel or DIN rail. A real-time clock maintains time for all data capture events. Battery life reaches 38 years powered at 50°C. In contrast, unpowered battery life is 12 years at the same temperature.

Channel Configuration Options

The 2300/20-02 supports multiple channel types for application flexibility. For accelerometer measurements, the bandpass filter spans 0.2 Hz to 20 kHz. Scale factor ranges from 5 to 1000 mV/g on this channel. Full scale measurement reaches 2 to 80 g peak accordingly.

Channel Types on the 2300/20-02:

• Accelerometer: 5-1000 mV/g scale, 2-80 g peak range

• Velocity: 5-1000 mV/in/s scale, 0-50 in/s peak

• Radial Vibration: 5-1000 mV/mil scale, 0-160 mil peak-peak

• Thrust Channel: 5-1000 mV/mil scale factor

• Speed/Keyphasor: Up to 20 kHz input, 0.1V resolution

Additionally, the 2300/20-02 includes a process variable channel. This channel supports most measurement units with default settings. Temperature channel hardware is configurable for various sensor types. Upper and lower OK limits are adjustable from -0.25 to -22V as needed.

Transducer Interfaces

The 2300/20-02 provides a dedicated proximity transducer interface. Supply voltage ranges from -22.8 to -25.2V DC. Maximum rated current is 15 mA with short circuit protection. Input impedance is 10 kΩ for 3-wire voltage mode. For accuracy, the system delivers ±1 percent of full scale.

Proximity Transducer Specifications:

• Supply Voltage: -22.8V to -25.2V DC

• Max Current: 15 mA

• Short Circuit Current: 15.1 mA to 23.6 mA

• Input Impedance: 10 kΩ

• Accuracy: ±1% of full scale

The 2300/20-02 also supports a proximity switch interface. Supply voltage for switches ranges from -10 to -24V DC. The lower NOT OK limit is set at -2.75 ±0.05V. RPM range for switch inputs is 1 to 60,000 accordingly. For magnetic pickup inputs, adapter 284947 ensures proper connection.

Contact and Button Inputs

The 2300/20-02 provides three contact input capabilities. Configuration lock prevents unauthorized setting changes on the device. Latched alarm and relay reset functions are supported as standard features. Monitor bypass activates with 0 to 10 kΩ resistance. Conversely, de-activation requires 150 kΩ to infinite resistance.

• Contact Inputs: 3 configurable terminals

• Activation Resistance: 0 to 10 kΩ

• De-activation Resistance: 150 kΩ to infinite

• Reset Button: External button for latched alarms

• Buried Button: Display info, contrast, factory reset

The buried button on the 2300/20-02 provides three key functions. First, it displays monitor information on the LCD screen. Second, it adjusts LCD contrast for better visibility. Third, it resets settings to factory defaults when needed. User account name, IP address, and firmware versions are shown on the display.

Output Capabilities

The 2300/20-02 offers comprehensive output options for system integration. Three buffered outputs are available through BNC connectors. Two outputs provide raw vibration signals for external analysis. One output delivers speed signal for tachometer monitoring. Moreover, the unit includes two dry-contact relays for alarm outputs.

• Buffered Outputs: 3 BNC connectors

• Vibration Outputs: 2 channels raw signal

• Speed Output: 1 channel tachometer signal

• Relays: 2 dry-contact outputs (SPDT)

• 4-20mA Outputs: 2 channels with internal supply

The 2300/20-02 relays are epoxy-sealed for harsh environment durability. Contact life reaches 100,000 cycles at 5 amps and 250V AC. Insulation resistance is 1000 MΩ minimum at 500V DC. Closed contact resistance is 1 Ω maximum. Meanwhile, open contact resistance is 1 MΩ minimum.

4-20mA Output Details

The 2300/20-02 model includes two 4-20mA outputs with internal power. These outputs have internal current loop power supply for simplicity. Output values are proportional to full-scale measurement ranges on each channel. Software configuration selects the variable for each output independently.

4-20mA Specifications for the 2300/20-02:

• Voltage Compliance: 0 to +12V DC across load

• Load Resistance: 0 to 600 Ω

• Resolution: 0.3662 µA

• Accuracy: 1% over operating temperature

• Update Rate: 100 ms

• Default Clamp: 2 mA

These outputs will not work with an external powered loop. The unit supplies all necessary power internally to simplify wiring. This approach reduces field components and installation complexity. The 2300/20-02 provides no output feedback determination. Therefore, users must verify loop operation externally.

Communications and Ethernet

The 2300/20-02 includes standard Ethernet communication for modern integration. It supports both 10Base-T and 100Base-TX network speeds. The port conforms to IEEE802.3 specifications for broad compatibility. Cabling distance reaches 100 meters (328 feet) maximum.

• Ethernet: RJ-45, 10/100Base-TX

• Protocol: TCP/IP for System 1 integration

• Cable Length: 100 meters maximum

• LEDs: TX/RX for communication status

• Data Storage: 5 alarm captures (System 1 required)

During network disruption, the 2300/20-02 stores alarm data locally. This feature requires System 1 Evolution 21.1 or newer versions. Firmware release 3.2 or newer is also necessary for this function. The monitor stores at least 5 alarm data captures internally. Once network connection resumes, data transfers to System 1 automatically.

Data Capture and Trending

The 2300/20-02 captures both trend and waveform data for analysis. For pre-event trend data, the unit records 10 minutes at 1 second intervals. Similarly, it records 20 seconds at 100 millisecond intervals. Post-event trend data captures 10 seconds at 100 ms resolution.

Trend Capture Settings:

• Pre-event (1 sec): 10 minutes duration

• Pre-event (100 ms): 20 seconds duration

• Post-event (100 ms): 10 seconds duration

• Post-event (1 sec): 1 minute duration

Spectrum and waveform capture is also available on the 2300/20-02. Pre-event data records 2.5 minutes at 10 second intervals. Post-event data records 1 minute at 10 second intervals. As a result, this comprehensive capture aids fault diagnosis significantly.

Status LEDs and Display

The 2300/20-02 features a full set of status indicators for quick diagnostics. An OK LED confirms proper monitor operation at a glance. A protection fault LED indicates hardware issues immediately. A user inhibit LED shows intentional alarm inhibition clearly.

• OK: Green - Monitor operating properly

• Protection Fault: Red - Hardware fault affecting alarms

• User Inhibit: Yellow - Alarms intentionally inhibited

• Bypass: Yellow - User initiated bypass active

• Relay Status: Shows relay activation state

• TX/RX: Ethernet communication status

• Alert LED: Any channel in alert state

• Danger LED: Any channel in danger state

The 2300/20-02 includes an LCD display for local machine viewing. Users can see machine speed and vibration values without software. Setpoints are visible on the display screen for easy reference. Configuration information is also accessible through the menu system. Consequently, this eliminates the need for a separate HMI device.

Environmental Certifications

The 2300/20-02 carries multiple explosive atmosphere certifications for global use. The approval code 02 includes ATEX, IECEx, and CSA ratings. Therefore, this monitor suits hazardous location installations worldwide. It meets international safety standards for explosive environments.

• ATEX: European explosive atmosphere certification

• IECEx: International certification system

• CSA: Canadian Standards Association approval

• Hazardous Areas: Zones 1 and 2 compatible

• Mounting: Panel or DIN rail with adapter

The 2300/20-02 includes a jumper between COM and chassis GND. This 2-pin terminal connects COM to chassis ground when installed. Alternatively, COM can connect to earth ground separately through a terminal. This flexibility reduces ground loop problems in complex installations.

Package Contents

Your purchase of the 2300/20-02 includes:

• (1) Bently Nevada Vibration Monitor – 2300/20-02

• (1) DIN rail mount assembly for flexible installation

• (1) Monitor configuration software for setup

• (1) Product manual with detailed instructions

Frequently Asked Questions (FAQ)

Q: Which sensors work with the 2300/20-02?
A: The 2300/20-02 works with ICP accelerometers and Velomitor sensors. Additionally, it supports Proximitor probes and magnetic pickups with adapter 284947.

Q: Does the 2300/20-02 include 4-20mA outputs?
A: Yes, the 2300/20-02 model includes two 4-20mA outputs with internal power. These outputs have internal supplies and do not accept external loops.

Q: What is the operating temperature range for the 2300/20-02?
A: The 2300/20-02 operates from -30°C to +65°C (-22°F to +149°F). For storage, the range extends from -40°C to +85°C.

Q: How does the 2300/20-02 communicate with System 1?
A: The 2300/20-02 uses Ethernet TCP/IP for System 1 communication. During network disruptions, it stores up to 5 alarm captures locally.

Q: What approvals does the 2300/20-02 carry?
A: The 2300/20-02 with option 02 has ATEX, IECEx, and CSA certifications. These cover multiple explosive atmosphere classifications worldwide.