Bently Nevada 3500/25-01-03-00 Enhanced Keyphasor Module

Product Overview

The Bently Nevada 3500/25-01-03-00 is an Enhanced Keyphasor Module for the 3500 Machinery Protection System. This single half-height module provides two Keyphasor channels and uses an Internal Barrier I/O module with internal terminations. It receives signals from proximity probes or magnetic pickups and converts them into digital Keyphasor pulses. These timing signals allow monitor modules and diagnostic systems to measure shaft speed and vector parameters, including 1X vibration amplitude and phase.

Order Number Breakdown

Technical Information

Manufacturer: Bently Nevada
Product Line: 3500 Machinery Protection System
Ordering Number: 3500/25-01-03-00
Product Type: Enhanced Keyphasor Module
Number of Channels: Two Keyphasor channels
Module Format: Single half-height Keyphasor card
Input Impedance: 21.8 kΩ minimum
Buffered Output Impedance: 504 Ω maximum
Keyphasor Transducer Supply: -24 VDC, 40 mA maximum per channel
Power Consumption: 3.2 W typical
Operating Temperature: 0°C to +65°C with Internal Barrier I/O and Internal Terminations
Storage Temperature: -40°C to +85°C
Relative Humidity: 95%, non-condensing

Benefits&Features

Application Areas

• Shaft-speed and phase-reference measurement in 3500 machinery protection racks
• Keyphasor signal conditioning for rotating machinery monitoring
• Vibration phase and 1X amplitude analysis
• Speed measurement from proximity probes or magnetic pickups
• Turbine, compressor, pump, and motor monitoring applications

Frequently Asked Questions

1. What is the function of the 3500/25-01-03-00?
It converts proximity-probe or magnetic-pickup signals into digital Keyphasor timing signals for compatible 3500 monitor modules and diagnostic equipment.

2. How many Keyphasor channels does this model provide?
Code 01 specifies one half-height, two-channel Keyphasor card.

3. What I/O configuration is included?
Code 03 specifies an Internal Barrier I/O module with internal terminations.

4. What measurements can Keyphasor signals support?
Keyphasor signals provide shaft-speed timing and support vector measurements such as 1X vibration amplitude and phase.

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