Bently Nevada 3500/25-02-01-00 Four-Channel Enhanced Keyphasor Module

Product Overview

The Bently Nevada 3500/25-02-01-00 is an Enhanced Keyphasor Module configuration for the 3500 Machinery Protection System. It includes two half-height, two-channel Keyphasor cards, providing four Keyphasor channels for shaft-speed and phase-reference signals. This configuration uses an I/O module with internal terminations. It receives signals from proximity probes or magnetic pickups, then converts them into digital Keyphasor pulses for use by compatible 3500 monitor modules and diagnostic equipment.

Order Number Breakdown

Technical Information

Manufacturer: Bently Nevada
Product Line: 3500 Machinery Protection System
Ordering Number: 3500/25-02-01-00
Product Type: Enhanced Keyphasor Module
Channel Configuration: Two half-height 2-channel Keyphasor cards
Total Keyphasor Channels: Four
I/O Module Type: I/O module with Internal Terminations
Non-Isolated I/O Input Signal Range: +0.8 V to -21.0 V
Input Frequency Range: 1 to 1,200,000 cpm (0.017 to 20 kHz)
Multiple Events per Revolution: Supported up to 20 kHz
Output Frequency Range: 1 to 99,999 cpm (0.017 to 1667 Hz)
Input Impedance: 21.8 kΩ minimum
Buffered Output Impedance: 504 Ω maximum
Power Consumption: 3.2 W typical per Keyphasor module
Operating Temperature: -30°C to +65°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 95%, non-condensing

Benefits&Features

Application Areas

• Multi-channel shaft-speed and phase-reference measurement
• Keyphasor signal conditioning in Bently Nevada 3500 racks
• Vibration phase and 1X amplitude analysis
• Rotating machinery with multiple shafts or gear-speed references
• Turbine, compressor, pump, and motor monitoring applications

Frequently Asked Questions

1. What is the function of the 3500/25-02-01-00?
It converts signals from proximity probes or magnetic pickups into digital Keyphasor timing signals for compatible 3500 monitor modules and diagnostic equipment.

2. How many Keyphasor channels does this configuration provide?
Code 02 specifies two half-height, two-channel Keyphasor cards, providing four Keyphasor channels.

3. What measurements can the module support?
It provides timing signals for shaft-speed measurement and vector parameters such as 1X vibration amplitude and phase.

4. Can the module accept magnetic-pickup signals?
Yes. The Enhanced Keyphasor Module accepts input signals from proximity probe transducers or magnetic pickups.

Main brands