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Key Technical Specifications
| Parameter | Technical Specification |
| Model Number | 2300/20-00 (Option -00: Standard / No Approvals) |
| DC Power Input | +18 to +36 VDC (7.5 W maximum power consumption) |
| Vibration Channels | 2 channels (Supports ICP Accelerometers, Velomitor, Proximitor inputs) |
| Speed/Keyphasor Input | 1 dedicated speed input (Proximity switch, Magnetic pickup, or Proximitor) |
| Analog Outputs | Two 4–20 mA outputs with internal current loop power supply (0 to 600 Ω load) |
| Buffered Outputs | 3 front-panel BNC connectors (2 vibration channels, 1 speed channel) |
| Relay Outputs | 2 SPDT dry-contact relays (6 A @ 250 VAC / 6 A @ 24 VDC) |
| Communication Protocols | Ethernet 10Base-T/100Base-TX (RJ-45), Modbus TCP, System 1 connectivity |
| A/D Conversion | Independent 24-bit ADCs per channel |
| Operating Temperature | −30°C to +65°C (−22°F to +149°F) |
| Mounting Format | 35 mm DIN rail adapter or surface mounting panel plate included |
| Dimensions & Weight | 127 mm x 127 mm x 76.2 mm (5.0 in x 5.0 in x 3.0 in) |
Product Introduction & Supply Chain Strategy
The Bently Nevada 2300/20-00 is a compact machinery monitor designed for continuous vibration tracking and trip protection on balance-of-plant assets like pumps, fans, blowers, and small compressors. It provides parallel sampling across two seismic/proximity vibration channels, a dedicated speed input, two programmable relay contacts, and dual 4–20 mA current loops for direct DCS integration.
Maintaining this unit as New Surplus provides an immediate drop-in replacement strategy to prevent unexpected process shutdowns. Refurbished vibration hardware introduces significant operational risks—such as degraded A/D converter channels, drifted relay thresholds, or internal signal noise—which can lead to false machinery trips or undetected bearing failures. Sourcing New Surplus units guarantees OEM component integrity, preserves accurate signal processing, and lowers Total Cost of Ownership (TCO).
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Isolate the machinery trip circuit and execute Lock-Out/Tag-Out (LOTO) on the incoming 24 VDC supply line.
- Put on an anti-static wrist strap grounded to the cabinet frame.
- Export and back up the existing monitor settings via Bently Nevada Monitor Configuration (BNMC) software over Ethernet.
Stage 2: Removal
- Unplug the spring-cage or screw terminal connectors for field transducers, relay contacts, power, and 4–20 mA loops.
- Disconnect the RJ-45 Ethernet cable and any BNC buffered output connections.
- Release the DIN rail mounting clip on the rear base plate and remove the monitor from the rail.
Stage 3: Installation (Clone & Seat)
- Snap the new 2300/20-00 housing onto the 35 mm DIN rail.
- Connect an Ethernet patch cable from your engineering laptop to the monitor’s RJ-45 port.
- Open BNMC software and upload the saved configuration file (.xml/.config) to restore scale factors, alarm limits, and relay logic.
- Reinsert all removable terminal block connectors into their respective ports.
Stage 4: Power-On & Testing
- Verify the incoming DC supply voltage measures between +18 and +36 VDC.
- Apply power and confirm the green front-panel OK LED lights solid.
- Use portable signal injection on the BNC connectors to verify 4–20 mA loop scaling and relay trip points before returning the machine to automated protection service.
- 2300/20-00
- 2300/20-00
Firmware/Software Versions & Upgrade Notes
The Bently Nevada 2300/20-00 requires specific configuration tools and firmware compatibility for advanced data capture:
- Configuration Tool: Configured using Bently Nevada Monitor Configuration (BNMC) software (Version 6.5 or higher recommended).
- System 1 Integration: Compatible with System 1 condition monitoring software for trend evaluation, spectrum display, and high-density alarm event capture.
- Firmware Notes: Firmware revisions after July 2021 include onboard high-density alarm data capture (up to 50 events) and pulse-based speed relay logic.
- Operational Caution: The dual 4–20 mA outputs on the 2300/20 feature an internal current loop power supply. Do NOT connect an external loop power supply to the 4–20 mA terminals, as this will damage the output circuit board.
Frequently Asked Questions (FAQ)
1. Is this Bently Nevada 2300/20-00 unit brand new or refurbished?
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo physical inspection and functional verification prior to dispatch.
2. What does the “-00” suffix indicate in the model code 2300/20-00?
In the Bently Nevada ordering structure, 2300/20-AA, option AA = 00 designates the standard, non-hazardous area agency approvals version (no specific hazardous area rating).
3. Can I use the 2300/20-00 to replace older Bently Nevada 1900/27 monitors?
Yes. The 2300/20 monitor serves as a direct functional upgrade for legacy single-channel 1900/27 monitors. It offers expanded channel capacity (2 vibration + 1 speed), higher 24-bit resolution, and integrated Ethernet/Modbus connectivity.
4. Do the 4–20 mA outputs require an external loop power supply?
No. The 2300/20-00 includes internal power driving for its two 4–20 mA loops. Wiring an powered external loop into these terminals will cause electrical damage to the module.
5. What warranty coverage comes with this New Surplus monitor?
Every New Surplus 2300/20-00 unit includes a full 12-month replacement warranty. Units ship in ESD-protective packaging with verified QC documentation.
