Product Overview
The Bently Nevada 149369-01 Enhanced Keyphasor Module is a half-height, two-channel device designed for the 3500 Machinery Protection System. Moreover, it converts inputs from proximity probes or magnetic pickups into precise digital Keyphasor pulses. In addition, the module accurately detects when the Keyphasor mark coincides with the shaft transducer. Therefore, it enables reliable measurement of shaft rotational speed and vibration phase.
Functional Highlights
- Multi-Signal Capability: Handles up to four Keyphasor signals in normal configuration and eight in paired configuration. Furthermore, it supports once-per-turn or multiple events per turn.
- Enhanced Processing: Replaces the older 125792-01 module while maintaining compatibility with legacy systems. Moreover, expanded signal processing allows more precise rotational monitoring.
- Input Flexibility: Accepts proximity probes or magnetic pickups with isolated or non-isolated I/O. In addition, passive magnetic pickups require a minimum shaft speed of 200 rpm (3.3 Hz).
- Reliability Indicators: Monitors signal ranges and ensures output stability across frequencies up to 20 kHz. For instance, it provides ±1% cpm accuracy for high-frequency signals.
Technical Data
| Specification | Details |
|---|---|
| Module Type | 3500/25 Enhanced Keyphasor Module |
| Model | 149369-01 |
| Channels | 2 |
| Power Consumption | 3.2 Watts typical |
| Signal Input Range | Non-Isolated: +0.8 V to -21.0 V |
| Isolated: +5 V to -11 V | |
| Input Impedance | ≥ 21.8 kΩ |
| Speed/Frequency Input | 1 to 1,200,000 cpm (0.017–20 kHz) |
| Output Range | 1 to 99,999 cpm (0.017–1667 Hz) |
| Signal Accuracy | ±1 cpm (low freq), ±8 cpm (mid freq), ±1% cpm (high freq) |
| Dimensions (H x W x D) | 119.9 mm x 24.4 mm x 256.5 mm |
| Weight | 0.34 kg (0.76 lbs) |
System Integration
The 149369-01 Enhanced Keyphasor Module integrates seamlessly into the 3500 Machinery Protection System. For instance, it provides timing pulses essential for measuring 1X vibration amplitude and phase. Moreover, it supports paired module configurations for enhanced monitoring capacity. In addition, the module ensures backward compatibility with legacy modules, simplifying upgrades in existing plants.
Details
| Weight | 0.34 kg |
|---|
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