Bently Nevada 126648-01 Keyphasor I/O Module (External Terminations)

Description

The Bently Nevada 126648-01 Keyphasor I/O Module (External Terminations) is a crucial component for precise keyphasor signal measurement in machinery monitoring systems. It supports up to two inputs from proximity probes or magnetic pickups, providing essential synchronization for rotating machinery. This module is part of the Bently Nevada 3500 Series and is designed to deliver accurate keyphasor signals and reliable performance.

Technical Specifications

• Power Consumption: 3.2 watts
• Inputs:
  • Accepts up to two transducer signals.
  • Signal Range: +0.8 V to -21.0 V (Non-Isolated) or +5 V to -11 V (Isolated).
  • Passive magnetic pickups require a minimum shaft speed of 200 rpm (3.3 Hz).
  • Input Impedance: 21.8 kΩ minimum.
• Outputs:
  • Buffered Keyphasor Signals: Available via coaxial connectors on the front and Euro Style connectors on the back of the rack.
  • Output Impedance: 504 Ω maximum.
• Keyphasor Transducer Power Supply: -24 Vdc, 40 mA maximum per channel.
• Front Panel LEDs:
  • OK LED: Indicates when a fault has been detected.
  • TX/RX LED: Shows communication status with the Rack Interface Module (RIM).

Environmental Limits

• Operating Temperature:
  • -30 °C to +65 °C (-22 °F to +150 °F) for non-Barrier version.
  • 0 °C to +65 °C (32 °F to +150 °F) for Internal Barrier version.
• Storage Temperature: -40 °C to +85 °C (-40 °F to +185 °F)
• Humidity: 95%, non-condensing