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

he Bentley Nevada 126648-01 Keyphasor I/O Module is a critical component designed for use with the 3500 Series Monitoring System. It provides external termination capabilities, enabling connection to proximity probes and magnetic pickups to facilitate the generation of Keyphasor signals. These signals are essential for monitoring machinery dynamics and supporting diagnostics within rotating equipment systems.

Key Features

• External Terminations: Allows easy connection of proximity probes and magnetic pickups to capture and relay Keyphasor signals.
• Compatibility: Specifically designed for use with the 3500/25 Enhanced Keyphasor Module.
• Dual Channel Capability: Supports up to two input channels for monitoring multiple machine shafts or events.

Inputs

• Signal Input: Accepts signals from proximity probes or magnetic pickups.
  • Input Range: +0.8 V to -21.0 V (Non-Isolated I/O modules) or +5 V to -11 V (Isolated I/O modules).
  • Speed Requirement: Magnetic pickups require a rotative shaft speed of at least 200 rpm (3.3 Hz).

Outputs

• Buffered Outputs: Two buffered Keyphasor outputs are available for easy signal distribution to other monitoring modules.
• Output Impedance: Maximum 504 Ω buffered output impedance.

Environmental Limits

• Operating Temperature: -30°C to +65°C (-22°F to +150°F) when used with standard I/O modules.
• Storage Temperature: -40°C to +85°C (-40°F to +185°F).
• Humidity: 95% non-condensing.

Physical Dimensions

• Height x Width x Depth: 241.3 mm x 24.4 mm x 103.1 mm (9.50 in x 0.96 in x 4.06 in).
• Weight: 0.46 kg (1.01 lbs).

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