Home / News / Bently Nevada 3500-25 149369-01 Enhanced Keyphasor Module Product Introduction

Bently Nevada 3500-25 149369-01 Enhanced Keyphasor Module Product Introduction

Nov 24, 2025 Bently Nevada

The BENTLY 3500/25 Enhanced Keyphasor Module is a part of the Bently Nevada 3500 machinery protection system. It is designed to provide accurate, reliable phase and speed measurements for a variety of rotating machinery applications. The module features a rugged construction and is designed to withstand harsh industrial environments.

Bently Nevada 3500-25 149369-01 Enhanced Keyphasor Module

Key Features

  • Wide input range: 1 to 1,200,000 CPM (0.017 to 20 kHz)
  • High output accuracy: ±0.1° phase, ±0.05% speed
  • Low input impedance: 21.8 kΩ minimum
  • Buffered output: 504 Ω maximum
  • Rugged construction: IP67 rated

Product Applications

The BENTLY 3500/25 Enhanced Keyphasor Module is commonly used in a variety of rotating machinery applications, including

Bently Nevada 3500-25 149369-01 Enhanced Keyphasor Module

  • Pumps
  • Compressors
  • Turbines
  • Generators
  • Motors

Product Specifications

Specification Value
Input range 1 to 1,200,000 CPM (0.017 to 20 kHz)
Output range 1 to 99,999 CPM (0.017 to 1667 Hz)
Input impedance 21.8 kΩ minimum
Output impedance 504 Ω maximum buffered output impedance
Accuracy ±0.1° phase, ±0.05% speed
Power supply 24 VDC ±20%
Power consumption 5 watts maximum
Operating temperature -40°C to +85°C (-40°F to +185°F)
Storage temperature -65°C to +90°C (-85°F to +194°F)
Humidity 0% to 95% non-condensing
Vibration 0.06 g RMS, 20 Hz to 2 kHz
Shock 5 g, 2 ms half-sine pulse
Enclosure rating IP67
Weight 3 kg (6.6 lbs)

Additional Information

For more information on the BENTLY 3500/25 Enhanced Keyphasor Module, please refer to the Bently Nevada product documentation. You can also contact a Bently Nevada representative for assistance.

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