Product Description
The Bently Nevada 3500/25-01-01-00 (149369-01 + 125800-01) Enhanced Keyphasor Module integrates two half-height channels for the 3500 Machinery Protection System. It converts signals from proximity probes or magnetic pickups into precise digital Keyphasor outputs. Standard configuration supports four Keyphasor signals, while a paired setup handles up to eight.
Technical Specifications
| Specification | Details |
|---|---|
| Power Consumption | 3.2 Watts (typical) |
| Channels | Two half-height channels per module |
| Signal Inputs | Proximity probes or magnetic pickups |
| Input Range (Non-Isolated I/O) | +0.8 V to -21.0 V |
| Input Range (Isolated I/O) | +5 V to -11 V |
| Minimum Shaft Speed | Passive magnetic pickups: 200 rpm (3.3 Hz) |
| Input Impedance | 21.8 kΩ minimum |
| Speed/Frequency Range | 1 to 1,200,000 cpm (0.017 to 20 kHz) |
| Output Range | 1 to 99,999 cpm (0.017 to 1667 Hz) |
| Accuracy (Non-processed signals) | 0.017–100 Hz ±1 cpm, 101–500 Hz ±8 cpm, 501 Hz–20 kHz ±1% |
| Accuracy (Processed signals) | 0.017–60 Hz ±1 cpm, 61–150 Hz ±8 cpm, 151 Hz–20 kHz ±1% |
| Transducer Auto Threshold | 2 V peak-to-peak, minimum 120 rpm (2 Hz) |
| Transducer Manual Threshold | 0 to -20 V DC, minimum 500 mV peak-to-peak |
| Hysteresis | Adjustable 0.2–2.5 Volts |
| Outputs | Two front coaxial buffered Keyphasor outputs, two rear Euro-style outputs |
| Output Impedance | 504 Ω maximum for buffered output |
| Keyphasor Transducer Power Supply | -24 V DC, 40 mA max per channel |
Module Configuration & Ordering
Included Models:
- 149369-01: Enhanced Keyphasor Module (replaces 125792-01)
- 125800-01: Keyphasor I/O Module with Internal Terminations
Key Features to Specify:
- Channels: Two half-height, 2-channel cards (up to four channels)
- I/O Module: Internal Terminations
- Agency Approval: Optional
Ordering Notes:
- Internal I/O modules cannot use external termination blocks
- External blocks and cables require separate orders
- Consult Bently Nevada for advanced signal processing
The Bently Nevada 3500/25-01-01-00 (149369-01 + 125800-01) module ensures high-precision rotational speed monitoring and reliable machinery protection. Its robust design supports industrial integration and long-term operation.
Details
| Weight | 0.1 kg |
|---|
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