Product Description
Product Details
| Manufacturer | Bently Nevada |
|---|---|
| Series | 3500/25 |
| Model/Part Number | 3500/25-01-01-00 |
| Model Type | Keyphasor Card I/O Module |
Description
The 3500/25 Keyphasor Card I/O Module is an essential part of the 3500 Machinery Protection System. It is a half-height, two-channel module that provides Keyphasor signals to the monitor modules within a 3500 rack. The module receives signals from proximity probes or magnetic pickups and converts them into digital Keyphasor signals, indicating the precise moment when the Keyphasor mark on the shaft aligns with the Keyphasor transducer.
The system can accommodate:
- Normal configuration: Up to four Keyphasor signals.
- Paired configuration: Up to eight Keyphasor signals.
Specifications
Power Consumption:
- 3.2 Watts (typical)
Signal Inputs:
- Each module accepts 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
- Signal Limiting: Signals exceeding this range are limited internally.
- Speed Requirement: Passive magnetic pickups require a minimum shaft speed of 200 rpm (3.3 Hz).
Input Impedance:
- 21.8 kΩ (minimum)
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
| I/O Module | Dimensions: 241.3 mm (9.50 in) x 24.4 mm (0.96 in) x 103.1 mm (4.06 in) <br> Weight: 0.46 kg (1.01 lbs) |
|---|
Rack Space Requirement:
- 1 full-height rear slot
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) |