Description
- Key Technical Specifications
| Parameter | Value |
| Manufacturer | Bently Nevada |
| Part Number | 230020-RU |
| System Series | 2300 Series Vibration Monitoring System |
| Module Type | Relay Output Expansion Module |
| Contact Type | Form C SPDT (Single Pole Double Throw) relays |
| Contact Rating | 5 A @ 30 V DC / 250 V AC (Resistive) |
| Relay Logic | Configurable: Normally De-energized / Energized (Latching or Non-latching) |
| Power Supply | Powered via 2300 Series base monitor interface bus |
| Operating Temperature | −30 to +65 °C (−22 to +149 °F) |
| Storage Temperature | −40 to +85 °C (−40 to +185 °F) |
| Mounting Option | Standard 35 mm DIN rail or direct panel mount |
- Product Introduction & Supply Chain Strategy
The Bently Nevada 230020-RU is a relay output expansion module engineered for the 2300 Series Vibration Monitoring System. It provides discrete SPDT relay contacts to drive alarm sirens, trip circuits, or plant PLC discrete inputs when machine vibration levels exceed pre-set Danger or Alert thresholds on balance-of-plant rotating equipment.
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. Refurbished cards carry severe risks of degraded components, which can cause false trips or unrecorded thermal spikes. Securing this module as New Surplus maintains full OEM reliability, lowers total cost of ownership (TCO), and shields your facility from extended lead times during emergency plant maintenance.

230020-RU

230020-RU
- Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Perform lock-out/tag-out (LOTO) on connected machinery control circuits and trip loops.
- Wear a grounded ESD wrist strap before handling the replacement module.
- Photograph existing field relay contacts, terminal block wiring, and system bus jumper settings prior to removal.
Stage 2: Removal
- Disconnect the removable terminal blocks containing trip and alarm wiring.
- Unlatch the module locking clip from the 35 mm DIN rail or loosen the mounting screws on panel assemblies.
- Gently disconnect the expansion interface ribbon/bus cable from the primary 2300 base monitor unit.
Stage 3: Installation (Clone & Seat)
- Mount the new 230020-RU module onto the DIN rail or backpanel adjacent to the 2300 main monitor.
- Connect the inter-module bus communication cable securely between the base unit and the expansion module.
- Reattach terminal blocks, ensuring field relay wires land on the exact NO (Normally Open), NC (Normally Closed), and Common terminals documented during removal.
Stage 4: Power-On & Testing
- Reapply power to the 2300 base monitor unit.
- Verify power and communication LEDs on the 230020-RU transition to solid green.
- Use System Configuration Software to perform a manual relay test (trip test) to verify relay contact state changes without energizing physical machine trip circuits.
- Firmware/Software Versions & Upgrade Notes
- Recommended Firmware: Requires 2300 Series base monitor firmware revision 1.40 or higher for full relay module recognition.
- Compatibility Notice: Configuration and relay mapping require Bently Nevada System 1 or 2300 Monitor Configuration Utility. Ensure software device definitions include the 2300/20 relay extension module.
- Upgrade Caution: Avoid updating base monitor firmware while trip loops are connected. Always disable output relays in software or isolate trip contacts prior to flashing firmware to prevent accidental machine shutdowns.
- Frequently Asked Questions (FAQ)
Q: Are these units really brand new, or are they refurbished/repaired cards?
A: This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules feature zero wear on connectors, zero soldered repairs, and original anti-static packaging opened only for mandatory QC testing.
Q: Why is New Surplus priced higher than refurbished parts on the market?
A: Refurbished modules often contain degraded relay contacts and hidden electrical wear. Saving 500 on a used part can cost 50,000 in unplanned downtime when it fails. Our pricing reflects genuine, factory-fresh inventory that delivers a 10–15 year expected lifespan and zero failure risk out of the box.
Q: Can I hot-swap the 230020-RU relay module while the 2300 monitor is powered?
A: No. Power to the main 2300 monitor should be isolated prior to connecting or disconnecting expansion bus cables to prevent voltage spikes from damaging the internal communication drivers.
Q: How are relay alarm logic settings (Energized/De-energized) saved?
A: Relay logic (Normally Energized vs. Normally De-energized, Latching vs. Non-latching) is configured in the 2300 main monitor via software and downloaded to the module. Replacing the 230020-RU hardware does not overwrite these software settings.
Q: What warranty coverage applies to this module?
A: Every 230020-RU New Surplus unit comes with a full 1-year replacement warranty, verified through physical terminal inspection, relay continuity testing, and ESD-safe packaging protocols.

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