2-channel keyphasor reference module for rotational speed and phase measurement of rotating machinery, providing synchronous timing signal for vibration analysis, fully tested with 12-month warranty for turbomachinery spare replacement

Product Overview

• PN: 3500/25, Part No: 149369-01
• Brand: Bently Nevada
• Series: 3500 Machinery Protection System
• Type: Enhanced Keyphasor Module

• Function: This dual-channel module receives pulse signals from magnetic pickups or proximity probes, converts raw signals into precise digital keyphasor timing signals. It supplies rotational speed and phase reference data to all monitor modules in the rack, supporting vibration phase analysis, speed monitoring and overspeed protection for turbines, compressors and generators.

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Core Features

1. Two independent input channels, supports up to 4 keyphasor signals in one rack
2. High-precision signal conditioning with auto/manual trigger threshold configurable
3. Front-panel coaxial buffered outputs for external waveform debugging
4. Compatible with TMR triple redundant safety system to improve unit operational reliability

5. Hot-swappable design with LED indicators for power, signal and communication fault diagnosis

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Technical Specifications

• Channel Quantity: 2
• Input Sensor: Magnetic pickup, eddy current proximity probe
• Input Frequency Range: 0.017Hz ~ 20kHz
• Typical Power Consumption: 4.2W
• Operating Temperature: -40℃ ~ +70℃
• Net Weight: 0.34kg
• HS Code: 8538900000
• Certifications: CE

• Product Status: Discontinued, supplied with fully tested surplus modules

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Compatibility

• Matched Device: Standard Bently Nevada 3500 series rack
• Compatible Monitor Cards: 3500/40M, 3500/42, 3500/45, 3500/53 and all series monitoring modules
• Supporting Software: 3500 rack configuration software, System 1 diagnostic platform

• Not Compatible: Third-party monitoring racks and non-3500 series equipment

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Application

1. Rotational speed and phase reference acquisition for large rotating units in power and petrochemical industries
2. Precision vibration spectrum, 1X amplitude and phase analysis for equipment fault diagnosis
3. Overspeed protection logic triggering and legacy 3500 system maintenance replacement