The Bently Nevada 3500/25 149369-01 is a half-height, two-channel Enhanced Keyphasor Module for the 3500 Series Machinery Protection System. Its core function is to receive input signals from proximity probes or magnetic pickups and convert them into precise digital Keyphasor signals. These signals indicate exactly when a Keyphasor mark on a rotating shaft passes the sensor, providing a critical timing reference used to measure rotational speed, vibration phase, and other vector parameters.
Item No :
3500/25 149369-01Order(MOQ) :
1Payment :
EXWProduct Origin :
USAShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
5kgProduct Showroom
Bently Nevada 3500/25 149369-01
New and Original
More details
|
Country of origin |
USA |
|
Product condition |
New |
|
Warranty |
one year |
|
Payment Method |
T/T, Western Union |
|
Shipping Method |
DHL/FedEX/UPS/TNE/EMS |
Main Specifications
| Item | Specifications / Features |
|---|---|
| Product Type | Enhanced Keyphasor Module |
| Number of Channels | Two-channel module |
| Form Factor | Half-height module |
| Input Signals | Proximity probes or magnetic pickups |
| Input Voltage Range | Non-isolated I/O: +0.8V to -21.0V; Isolated I/O: +5V to -11V |
| Power Consumption | 3.2 Watts (typical) |
| Keyphasor Outputs | Two buffered outputs per channel |
| Operating Temperature | -30°C to +65°C (non-isolated I/O) |
| System Platform | Bently Nevada 3500 Series Rack |
| Backward Compatibility | Replaces previous PWA 125792-01 |
High-Precision Speed and Phase Reference: The module's standout feature is its ability to generate a high-precision phase reference for the entire 3500 system . This Keyphasor signal allows monitor modules and external diagnostic equipment to measure shaft rotative speed and vector parameters like 1X vibration amplitude and phase, which are essential for advanced machinery diagnostics .
Enhanced Capabilities with Full Backward Compatibility: This "Enhanced" module offers expanded Keyphasor signal processing capabilities over the previous design . At the same time, it maintains complete downward compatibility in form, fit, and function, making it a straightforward upgrade for legacy systems without requiring rack reconfiguration .
Flexible System Configuration: A single 3500 rack can accept up to four Keyphasor signals in a standard setup and up to eight in a paired configuration . For critical Triple Modular Redundant (TMR) applications, two Keyphasor modules can be installed in parallel to provide both primary and secondary signals, ensuring high system availability .
The 3500/25 is widely used as a fundamental component of the 3500 Series Machinery Protection System in heavy industries, including:
Power Generation: Monitoring steam and gas turbines and generators .
Oil & Gas: Safeguarding compressors and pumps .
Heavy Industry: Protecting large motors and other critical rotating assets
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