Product Description
Product Details
| Manufacturer | Bently Nevada |
|---|---|
| Series | 3500/25 |
| Model/Part Number | 149369-01 |
| Model Type | Enhanced Keyphasor Module |
Description
The 3500/25 Enhanced Keyphasor Module is a half-height, two-channel module designed to provide Keyphasor signals to the monitor modules in a 3500 rack. This module receives signals from proximity probes or magnetic pickups and converts them into digital Keyphasor signals to indicate when the Keyphasor mark on a shaft coincides with the Keyphasor transducer.
The 3500 Machinery Protection System can support:
- Normal configuration: Up to four Keyphasor signals.
- Paired configuration: Up to eight Keyphasor signals.
Specifications
Power Consumption:
- 3.2 Watts (typical)
Signal Inputs:
- Each Keyphasor module can accept up to two signals from proximity probe transducers or magnetic pickups.
-
Signal Range:
- Non-Isolated I/O Modules: +0.8 V to -21.0 V
- Isolated I/O Modules: +5 V to -11 V
- Signals exceeding this range are internally limited by the module.
-
Magnetic Pickup Speed Requirement:
- Minimum shaft speed: 200 rpm (3.3 Hz)
Input Impedance:
- 21.8 kΩ (minimum)
Buffered Keyphasor Outputs:
- Two buffered Keyphasor outputs are available at the front of the rack via coaxial connectors.
- Two additional buffered Keyphasor outputs are available at the back of the rack via Euro Style connectors.
Output Impedance:
- 504 Ω (maximum buffered output impedance)
Keyphasor Transducer Power Supply:
- -24 Vdc, 40 mA maximum per channel.
Environmental Limits
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) when used with non-Internal Barrier I/O Module <br> 0°C to +65°C (32°F to +150°F) when used with Internal Barrier I/O Module (Internal Termination) |
|---|---|
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 95%, non-condensing |
Physical Dimensions
| Main Module | Dimensions: 119.9 mm (4.72 in) x 24.4 mm (0.96 in) x 256.5 mm (10.10 in) <br> Weight: 0.34 kg (0.76 lbs) |
|---|---|
| I/O Module |
Dimensions: 241.3 mm (9.50 in) x 24.4 mm (0.96 in) x 103.1 mm (4.06 in) Weight: 0.46 kg (1.01 lbs) |
Ordering Information
| Option | Description |
|---|---|
| A: Number of Channels | 01: Single half-height 2-channel Keyphasor card (2 channels) 02: Two half-height 2-channel Keyphasor cards (4 channels) |
| B: Type of I/O Module | 01: I/O module with Internal Terminations 02: I/O module with External Terminations 03: Internal Barrier I/O with Internal Terminations 04: Isolated I/O module with Internal Terminations (For Magnetic Pickups) 05: Isolated I/O module with External Terminations (For Magnetic Pickups) |
| C: Agency Approval Option | 00: Not required 01: cNRTLus (Class 1, Div 2) 02: ATEX/IECEx/CSA (Class 1 Zone 2) |
Spares
- 149369-01: Enhanced Keyphasor Module (can be ordered as a direct plug-in replacement for Keyphasor Module 125792-01).