Product Description
Product Information: Bently Nevada 3500/25 Enhanced Keyphasor Module
| Manufacturer |
Bently Nevada (A Baker Hughes Business) |
| Series |
3500/25 |
| Model/Part Number |
3500/25-01-01-01 149369-01+125800-01 |
| Model Type |
Enhanced Keyphasor Module |
General Description
The 3500/25 Enhanced Keyphasor Module is a key component in Bently Nevada’s 3500 machinery protection system. This module accepts input signals from proximity probe transducers or magnetic pickups, offering precise machinery health monitoring. It is designed to detect rotational speed and provide signals for additional machinery protection systems.
Key Specifications
| Specification |
Details |
| Power Consumption |
3.2 Watts typical |
| Signal Inputs |
Accepts up to two transducer signals (from proximity probes or magnetic pickups). |
| Signal Range |
+0.8V to -21.0V (Non-Isolated I/O modules) or +5V to -11V (Isolated I/O modules). |
| Input Impedance |
21.8 kΩ minimum |
| Magnetic Pickup Requirements |
Passive magnetic pickups require shaft speed > 200 rpm (3.3 Hz). |
Environmental Limits
| Environmental Condition |
Limits |
| Operating Temperature |
-30°C to +65°C (-22°F to +150°F) when used with Keyphasor I/O modules other than the Internal Barrier version. |
|
0°C to +65°C (32°F to +150°F) when used with Keyphasor 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
| Specification |
Details |
| Main Module Dimensions |
119.9 mm x 24.4 mm x 256.5 mm (4.72 in x 0.96 in x 10.10 in) |
| Weight (Main Module) |
0.34 kg (0.76 lbs.) |
| I/O Module Dimensions |
241.3 mm x 24.4 mm x 103.1 mm (9.50 in x 0.96 in x 4.06 in) |
| Weight (I/O Module) |
0.46 kg (1.01 lbs.) |
Ordering Information
| Option |
Details |
| A: Number of Channels |
|
| 01 |
Single half-height 2-channel Keyphasor card (order for 2 channels) |
| 02 |
Two half-height 2-channel Keyphasor cards (order for 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 (designed for magnetic pickups) |
| 05 |
Isolated I/O module with External Terminations (designed for magnetic pickups) |
| C: Agency Approval Option |
|
| 00 |
Not required |
| 01 |
cNRTLus (Class 1, Div 2) |
| 02 |
ATEX/IECEx/CSA (Class 1 Zone 2) |
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