Description
The 2300/20-00-01 is a compact, self-contained Dual Channel Vibration Monitor from the Bently Nevada 2300 series. Designed as an economical alternative to the large-scale 3500 series, it is primarily used for continuous monitoring and protection of smaller, less critical machinery such as pumps, fans, and motors.
The 2300/20 model specifically provides two channels of vibration monitoring and one channel of speed (Keyphasor) monitoring in a single, ruggedized package.
Availability and Procurement
- Condition: New Original or Refurbished.
- Warranty: 12-month technical replacement warranty.
- Lead Time: Typically ships within 3–5 business days.
- Pricing: Contact our technical sales team for a formal quote.
Model Code Breakdown (2300/20-00-01)
- 2300/20: Dual Channel Vibration Monitor (standard).
- -00: Agency Approval: None / Standard (for general purpose, non-hazardous areas).
- -01: Mounting Option: DIN-rail Mount (allows for easy installation in standard electrical cabinets).
Technical Specifications
The 2300/20 integrates the monitor, I/O, and relay outputs into a single unit, reducing the need for complex rack configurations.
| Parameter | Specification |
| Channels | 2 Vibration (Proximity, Seismic, or Velomitor) |
| Keyphasor | 1 dedicated Speed/Phase channel |
| Relays | 3 Programmable relays (Alert, Danger, and Not OK) |
| Analog Outputs | 2x 4–20 mA (proportional to vibration levels) |
| Communication | Modbus RTU (over RS-485) and Ethernet |
| Power Supply | 24 V DC (18 to 36 V DC) |
| Protection | IP20 (Cabinet mount) |
Core Functionality and System Role
The 2300/20 acts as a standalone machinery protection system (MPS) that provides three distinct functions:
1. Real-Time Protection (Relays)
The module compares incoming vibration signals against “Alert” and “Danger” setpoints. If vibration exceeds these limits, the internal relays trip. These are typically hard-wired to the machine’s motor starter or control circuit to trigger an emergency shutdown.
2. Condition Monitoring (Modbus/Ethernet)
While the relays handle safety, the digital ports allow for data trending. You can stream vibration levels and device status to a PLC, SCADA, or Bently Nevada’s System 1 software for long-term health analysis.
3. Signal Buffering
The front of the unit features BNC connectors. These provide “buffered” raw signals, allowing a technician to connect a portable vibration analyzer (like a Scout or vb-series) without disconnecting any field wiring or interrupting the protection logic.
Engineering Insights: Deployment and Configuration
As a reliability specialist, I recommend the following for the 2300/20-00-01:
1. Software Configuration (Bently Nevada Monitor Configuration)
The 2300/20 is programmed via a USB connection using the Bently Nevada Monitor Configuration software.
- Best Practice: Ensure you select the correct Transducer Type (e.g., 3300 XL 8mm Proximitor vs. 330500 Velomitor). Selecting the wrong transducer will result in incorrect scaling and may lead to a failure to trip during a mechanical event.
2. Keyphasor Utilization
Even if you only intend to monitor vibration levels, I strongly suggest utilizing the Keyphasor (Speed) input.
- Benefit: Having a speed reference allows the monitor to perform “Synchronous” filtering. This helps the system distinguish between vibration caused by unbalance (which happens at 1x shaft speed) and background mechanical noise.
3. Relay Logic Security
The 2300/20 relays are configurable as Normally Energized (NE) or Normally De-energized (NDE).
- Requirement: For safety-critical applications, use “Normally Energized.” This ensures that if the 2300/20 loses power, the machine will trip safely (Fail-Safe), rather than continuing to run without monitoring.
4. Grounding and Shielding
Because the 2300/20 is often mounted in small cabinets alongside VFDs (Variable Frequency Drives):
- Constraint: Use twisted, shielded pair cabling. The shield must be terminated at the 2300/20 chassis ground and floated (cut and insulated) at the sensor end to prevent ground loops that introduce electrical interference.
FAQ
Q: Can I use this for a machine that requires more than 2 channels?
A: You can daisy-chain multiple 2300/20 units via Modbus, but they will operate as independent protection devices. If you need integrated logic for 4 or more channels, the Bently Nevada 3500 system or Orbital 20 is usually more appropriate.
Q: Does it support 3300 XL Proximitor sensors?
A: Yes, it is fully compatible with the standard 3300 XL 8mm, 5mm, and NSv Proximitor systems, as well as Velomitors and seismic accelerometers.
Q: Is the 2300/20 a replacement for the 1900/65?
A: Yes. The 2300 series is the modern successor to the legacy 1900/65A monitors, offering better communication options and a more user-friendly software interface.
