Product Details
The 3500/25-01-03-01 Enhanced Keyphasor Module is a half-height, two-channel module designed for the Bently Nevada 3500 Series Machinery Protection System. It acquires keyphasor signals from proximity transducers or magnetic pickups to provide precise rotational speed and phase angle measurements for rotating machinery. This specific configuration includes internal termination I/O modules with external/internal barrier provisions and CSA, NRTL, and C agency approvals for hazardous locations.
Functional Operation and Signal Processing
The module processes input signals from shaft-mounted keyway or notch targets to generate digital timing pulses. These pulses are utilized by monitor modules within the rack for synchronous sampling, vibration vector calculations, and detailed phase analysis. Each channel can independently condition incoming waveforms and reject extraneous noise to ensure reliable speed tracking across transient and steady-state operating regimes.
Configuration and I/O Interface
Occupying two rack slots within the 3500 framework, the module pairs with a dedicated I/O module positioned at the rear of the rack. The order code suffix indicates support for two channels with internal terminations and specific hazardous area certifications. Front-panel LED indicators provide real-time status updates on channel operation, transducer power supply health, and overall module readiness.
| Parameter | Specification |
|---|---|
| Model | 3500/25-01-03-01 |
| Brand | Bently Nevada |
| Product Type | Enhanced Keyphasor Module |
| Number of Channels | 2 channels |
| Inputs | Proximity transducers or magnetic pickups |
| Slot Occupancy | 2 rack slots |
| Agency Approval | CSA / NRTL / C (Class 1, Division 2) |
| Operating Temperature | -30 degC to +65 degC |
| Storage Temperature | -40 degC to +85 degC |
| Weight | 0.91 kg |
Frequently Asked Questions
Q: What is the primary function of the 3500/25-01-03-01 module in a 3500 system?
A: It provides keyphasor reference pulses used by vibration monitors for vector calculations, speed measurement, and phase analysis.
Q: What sensor types can be connected to this enhanced keyphasor module?
A: It accepts input signals from standard eddy current proximity transducers and magnetic speed pickups.
Q: Does this specific catalog configuration include hazardous area approvals?
A: Yes, the -01 agency approval suffix designates CSA, NRTL, and C certifications for Class 1, Division 2 locations.
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.































