Product Overview

The Bently Nevada 3500/25 Enhanced Keyphasor Module is an advanced, half-height, two-channel module used within the 3500 Machinery Protection System. Its primary function is to provide a precise timing signal, known as the Keyphasor signal, to other monitor modules in the 3500 rack.

This module accepts input signals from proximity probes or magnetic pickups. It then converts these signals into a digital Keyphasor signal, which marks when a Keyphasor mark on a rotating shaft aligns with the transducer. This once-per-turn or multiple-event-per-turn pulse is critical for:

• Measuring shaft rotative speed.

• Determining vector parameters like 1X vibration amplitude and phase.

The original 125792-01 PWA (Printed Wiring Assembly) has been replaced by the 149369-01 module, which enhances signal processing capabilities while maintaining full backward compatibility in terms of form, fit, and function. The enhanced version includes:

• Generation of once-per-turn event signals from multi-event-per-turn inputs.

• Field-upgradeable firmware for future updates.

• Asset management data reporting to track system health.

Designed for industrial applications, the 3500/25 module is configured for various I/O options, including isolated and non-isolated versions. It also features two buffered Keyphasor outputs located at both the front and back of the rack, enabling easy integration with external diagnostic equipment.

Technical Specifications

Frequently Asked Questions

Q: Is the 125792-01 module still available?
A: The 125792-01 PWA has been replaced by the 149369-01 module, which is the current version. Some suppliers may still carry the original PWA or direct replacements, so it’s worth checking with them.

Q: Is the 3500/25 module brand new?
A: Yes, we offer brand new, original factory products.

Q: Do you have this module in stock?
A: Yes, we have this module in stock and ready to ship.

Q: How long does shipping take?
A: We typically ship within 3 days to 2 weeks, depending on the order size. We use common logistics services like DHL.

Q: What is your return policy?
A: We offer a 30-day return policy for any quality-related issues.

Q: What is the primary function of the 3500/25 module?
A: The 3500/25 module provides a precise Keyphasor signal used to measure shaft speed and other vector parameters for rotating machinery monitoring.