Bently Nevada 3500/25 149369-01 Enhanced Keyphasor Module

Bently Nevada 3500/25 149369-01 Enhanced Keyphasor Module

The 3500/25 149369-01 is an Enhanced Keyphasor Module for Bently Nevada 3500 Series racks.
It reads shaft speed and phase signals.
It supports proximity probes and magnetic pickups.
And it is stable, fast, and easy to install.

Configuration Breakdown (Tree Structure)

• Series
  • 3500 Machinery Protection System
• Module Type
  • Enhanced Keyphasor Module
• Model Structure
  • 3500/25
    • 149369-01
      • Main processing module
      • Dual channel input
      • Front & rear buffered outputs

Input Specifications

• Accepts 2 transducer signals
• Supports proximity probes and magnetic pickups
• Non-isolated input range: +0.8V to -21V
• Isolated input range: +5V to -11V
• Minimum input impedance: 21.8 kΩ
• Magnetic pickup min speed: 200 rpm
• Power consumption: 3.2 W typical

Speed & Frequency Performance

• Input range: 1 to 1,200,000 cpm (0.017–20 kHz)
• Output range: 1 to 99,999 cpm
• Supports multiple events per revolution
• Accuracy up to ±1% at high frequency
• Low speed accuracy: ±1 cpm
• Stable at +25°C reference

Trigger & Threshold Control

• Auto threshold: 2 V peak-to-peak min
• Manual threshold: 0 to -20 V selectable
• Manual min signal: 500 mV peak-to-peak
• Hysteresis adjustable: 0.2 to 2.5 V
• Works from 1 rpm (manual mode)

Outputs & Power

• 2 buffered outputs (front, coaxial)
• 2 buffered outputs (rear, Euro connector)
• Max output impedance: 504 Ω
• Transducer supply: -24 Vdc, 40 mA per channel

LED Indicators

• OK LED – fault status
• TX/RX LED – communication status

Environmental Limits

• Operating temp: -30°C to +65°C
• Storage temp: -40°C to +85°C
• Humidity: 95%, non-condensing
• Compact size: 119.9 x 24.4 x 256.5 mm

Why Choose This Module

• High frequency support up to 20 kHz
• Accurate shaft speed detection
• Strong signal filtering
• Dual channel input saves rack space
• Stable in harsh industrial sites
• Easy integration in 3500 rack

Warranty & Shipping

• 12 Months Warranty
• 100% Tested Before Shipment
• Fast delivery via FedEx, UPS, DHL
• Professional anti-static packing
• Global export support

FAQ

1. How do I confirm this module fits my rack?

Check that your system is Bently Nevada 3500 Series.
Confirm slot type and I/O module version before purchase.

2. When should I use manual threshold mode?

Use manual mode when signal level is low or unstable.
It gives better control for special machines.

3. Can it work with slow rotating shafts?

Yes. Manual mode allows detection from very low rpm.
Good for turbines and compressors during startup.

4. What should I check before replacement?

Power off the rack.
Verify wiring type.
Check isolation type to avoid signal mismatch.

5. What service support do you provide?

We offer 12-month warranty.
Technical help before and after sale.
Fast shipping by FedEx, UPS, or DHL.

Contact Us

Email: sales@powergearx.com
WhatsApp: +86 18030005825

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