Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3500/22M |
| Part Number | 288055-01 |
| Manufacturer | Bently Nevada |
| Product Series | 3500 Machinery Monitoring System |
| Product Type | Transient Data Interface Module |
| Primary Function | Rack interface and transient data collection |
| Host Communication | 10Base-T / 100Base-TX Ethernet |
| Fiber Option | 100Base-FX, with compatible I/O module |
| Local Interface | USB 2.0 Type-B |
| Front Serial Interface | RS-232, up to 115.2 kbaud on applicable hardware |
| Transient Data Memory | 16 MB |
| Installation | 3500 rack, adjacent to power supplies |
| Compatible Monitors | M-Series monitors, including 3500/40M and 3500/42M |
| Part Description | Standard TDI with USB cable |
The OEM datasheet identifies 288055-01 as the standard 3500/22M Transient Data Interface module supplied with a USB cable. The TDI combines the rack-interface role of the 3500/20 RIM with data-collection functions and transfers monitoring data to host software over Ethernet.
Product Introduction
What the 3500/22M Does
The Bently Nevada 3500/22M 288055-01 is the Transient Data Interface for the 3500 machinery monitoring system. It communicates with M-Series monitors, collects steady-state and transient waveform data, and transfers that information to compatible host software through the rack’s Ethernet interface. It also provides local configuration through USB.
The key advantage is architectural. The 3500/22M combines functions previously handled by the 3500/20 Rack Interface Module and a separate communication processor. For plants maintaining an existing 3500 rack, this provides the data path required for condition-monitoring software without changing the core protection architecture.
288055-01
Application Scenarios & Field Pitfalls
Engineering Pain Point
A turbine or compressor can remain fully protected while its condition-monitoring workstation suddenly loses detailed waveform data. That distinction matters. The 3500/22M is not itself the primary machinery protection path; its failure primarily affects rack-level data acquisition and communication with host software. The first troubleshooting step should therefore be to separate a data-interface problem from an actual monitor/protection problem.
Typical Applications
- Power Generation — Turbine vibration and transient-data collection for condition monitoring.
- Oil & Gas — Compressor and rotating-equipment waveform transfer to plant diagnostic systems.
- Petrochemical — Continuous machinery-condition data acquisition from 3500 M-Series monitors.
- Industrial Rotating Equipment — Centralized collection of steady-state and transient vibration information.
Technical Pitfalls to Avoid
- Do not leave the old RIM I/O installed during a TDI upgrade.
The documented upgrade procedure specifically warns that leaving the 3500/20 RIM I/O in the rack when installing a TDI can damage the TDI. The prescribed sequence is to remove the RIM, remove its I/O, install the TDI I/O, and then install the TDI. - Check M-Series compatibility before replacing a 3500/20.
The TDI is not simply a newer communication card with universal compatibility. The OEM datasheet specifically warns that some M-Series monitors may not be compatible when upgrading from a 3500/20 to a 3500/22 TDI. - Do not ignore the Ethernet I/O module.
The 3500/22M works with different network interface options, including 146031-01 for 10Base-T/100Base-TX and 146031-02 for 100Base-FX fiber. Confirm the installed I/O module before planning network replacement. - Treat USB grounding seriously.
The specified USB cable 123M4610 is intended to maintain isolation between chassis and ground. The documentation also warns against creating a ground loop through the connected computer.
Related Products
- 3500/20 125744-02 — Legacy Rack Interface Module. It performs the older rack-interface function that the 3500/22M combines with transient data collection. It is relevant when maintaining an older 3500 rack rather than upgrading to TDI architecture.
- 3500/40M — Four-Channel Vibration Monitor. It supplies monitoring information that the 3500/22M can collect and transmit to host software. The two modules perform complementary functions.
- 3500/42M — Four-Channel Proximity Monitor. It is another M-Series monitor compatible with the TDI architecture and provides measurement/protection functions while the 3500/22M handles rack-level data interfacing.
- 146031-01 — 10Base-T/100Base-TX Ethernet I/O module for the 3500/22M. This is the appropriate network-interface option when the rack uses copper Ethernet.
- 146031-02 — 100Base-FX fiber-optic I/O module. It provides fiber Ethernet connectivity for installations requiring optical network isolation or longer cable runs.
- 146031-03 — 10Base-T/100Base-TX Ethernet I/O module with GLD plating. It serves the same general copper-Ethernet interface function with a different hardware treatment.
- 123M4610 — USB A-to-B cable specified for the 3500/22M. It is associated with local configuration and is specifically referenced for maintaining electrical isolation.
- 3500/22M 146031-01 — Related 3500/22M configuration using the copper Ethernet I/O module. When ordering a replacement TDI, identify the complete module and I/O configuration rather than relying on “3500/22M” alone.
Procurement note: For a replacement, specify Bently Nevada 3500/22M, 288055-01 and verify the installed Ethernet I/O module, M-Series monitor compatibility, rack revision, and firmware/configuration. If this is replacing a 3500/20 RIM, treat it as an engineered upgrade rather than a simple card-for-card swap.
