Product Details
The 3500/25-02-03-01 Enhanced Keyphasor Module is a half-height, 2-channel card designed by Bently Nevada for the 3500 Machinery Protection System. It processes input signals from proximity probes or magnetic pickups to generate precise digital Keyphasor pulses, supplying essential speed and phase reference data to adjacent monitor modules.
Module Configuration and I/O Structure
This specific configuration combines two half-height Keyphasor channels with an Internal Barrier I/O module featuring internal terminations. The integrated internal barrier circuitry provides hazard protection and signal isolation directly at the module connections without requiring external barrier hardware.
Signal Conditioning and Speed Measurement
The module accepts transducer input signals ranging from +0.8 V to -21.0 V for standard inputs or +5 V to -11 V for isolated versions, converting them into clean rotational timing marks. It supports speed and frequency signal ranges from 1 to 1,200,000 cpm (0.017 to 20 kHz), allowing reliable vector measurements and 1X vibration analysis across diverse rotating machinery.
| Parameter | Specification |
|---|---|
| Model | 3500/25-02-03-01 |
| Brand | Bently Nevada |
| Series | 3500/25 Enhanced Keyphasor |
| Number of Channels | 2 Channels (Half-Height Module) |
| I/O Module Type | Internal Barrier I/O with Internal Terminations |
| Agency Approval Option | cNRTLus (Class 1, Div 2) |
| Power Consumption | 3.2 W typical |
| Operating Temperature | 0 deg C to +65 deg C (32 deg F to +150 deg F) |
Frequently Asked Questions
Q: What function does the Bently Nevada 3500/25-02-03-01 module perform in a rack?
A: It converts proximity probe or magnetic pickup signals into digital Keyphasor pulses, providing accurate speed and phase reference data for 3500 monitor modules.
Q: What do the numerical suffixes in the complete model number represent?
A: The -02 designates a two-channel half-height module option, -03 specifies an internal barrier I/O module with internal terminations, and -01 indicates the cNRTLus agency approval option.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.































