Introduction to Part 3500/22M 164466-01
The 3500/22M 164466-01 is a Transient Data Interface (TDI) Module for the Bently Nevada 3500 monitoring system. Its primary function is to capture and store high-speed "snapshots" of machinery data from all monitoring modules in the rack during predefined trigger events, such as alarms, trips, or user-initiated commands. This transient data is crucial for diagnosing machinery faults, performing root cause analysis after a trip, and understanding dynamic machine behavior. The module works by latching data from all monitoring channels when a trigger occurs, providing a comprehensive picture of the machine's condition at that critical moment.
Parameters / Specifications
The key technical parameters for the 3500/22M 164466-01 module are summarized in the table below.
| Parameter | Specification | Notes / Explanation |
|---|---|---|
| Model Number | 3500/22M | Bently Nevada Transient Data Interface (TDI) Module |
| Assembly/Revision Code | 164466-01 | Manufacturer's internal assembly number. |
| Product Type | Rack-Mount Monitoring Module | |
| Compatible Rack | Bently Nevada 3500 Rack | Requires a 3500 series frame for operation. |
| Module Slot Size | Single Slot | Occupies one slot in the 3500 rack. |
| Dimensions (H x W x D) | Approx. 193mm x 55mm x 200mm | Standard dimensions for a 3500 series module. |
| Weight | Approx. 0.6 kg (1.3 lbs) | |
| Power Requirement | +24 VDC (from rack backplane) | Powered by the main rack power supplies. |
| Channels | Interfaces with all monitoring channels in the 3500 rack | Captures data from vibration, position, speed, and other modules. |
| Sample Rate | Up to 20,000 samples/second | High-speed capture for detailed transient analysis. |
| Memory | Non-Volatile for data storage | Retains captured transient data even after a power cycle. |
| Communication Interface | Via 3500 Rack Communication Module (e.g., 3500/92) | Data is accessed through a dedicated communication module in the rack. |
| Front Panel Indicators | OK, Active, Alert | LED status indicators for module health and activity. |
| Operating Temperature | -20°C to +65°C | Standard for industrial monitoring hardware. |
Application Scenarios
The 3500/22M TDI Module is used for advanced diagnostics and protection of critical rotating machinery where understanding event-driven behavior is essential.
Trip and Alarm Analysis: Capturing data from the moments leading up to and following a machinery trip or alarm, which is indispensable for determining the root cause of the event.
Startup and Shutdown Monitoring: Recording transient operational data during machine startups and shutdowns to analyze behavior through critical speeds and monitor thermal effects.
Root Cause Analysis (RCA): Providing essential high-speed data for troubleshooting persistent or complex machinery problems, such as shaft cracks, rubs, or instability.
Performance Testing: Recording machine responses during specific operational tests, such as load changes or valve strokes.
Integration with Diagnostic Software: The captured data is seamlessly transferred to systems like Bently Nevada's System 1® software for in-depth analysis, long-term trending, and asset management.
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