Bently Nevada|3500-25 128718-01|Keyphasor® External Termination Block

Bently Nevada 3500-25 128718-01 Keyphasor® External Termination Block

Description
A termination block for connecting Keyphasor transducer signals to the 3500/25 Enhanced Keyphasor Module, supporting proximity probes or magnetic pickups.

Features

• Euro-style connectors for secure signal interfacing
• Compatible with external termination I/O modules
• Designed for integration into 3500 rack systems

Technical Specifications

Inputs

• Signal Range
  • Non-isolated I/O: +0.8 V to -21.0 V
  • Isolated I/O: +5 V to -11 V
• Input Impedance
  • 21.8 kΩ minimum
• Minimum Speed
  • 200 rpm (3.3 Hz) for passive magnetic pickups

Signal Conditioning

• Speed Range
  • 1 to 1,200,000 cpm (0.017 Hz–20 kHz)
• Accuracy
  • Non-processed signals
    • ±1 cpm (0.017–100 Hz)
    • ±8 cpm (101–500 Hz)
    • ±1% (501 Hz–20 kHz)
  • Processed signals
    • ±1 cpm (0.017–60 Hz)
    • ±8 cpm (61–150 Hz)
    • ±1% (151 Hz–20 kHz)

Thresholds

• Auto Threshold
  • 2 V peak-to-peak minimum
  • 120 rpm (2 Hz) minimum frequency
• Manual Threshold
  • User-selectable (0 to -20 V DC)
  • 500 mV peak-to-peak minimum
• Hysteresis
  • Adjustable (0.2–2.5 V)

Outputs

• Buffered Keyphasor Signals
  • 504 Ω max impedance
• Transducer Power Supply
  • -24 Vdc
  • 40 mA max per channel

Environmental

• Operating Temperature
  • -30°C to +65°C (with standard I/O)
  • 0°C to +65°C (with internal barrier I/O)
• Storage Temperature
  • -40°C to +85°C
• Humidity
  • 95% non-condensing

Physical

• Dimensions (I/O Module)
  • 241.3 mm × 24.4 mm × 103.1 mm
• Weight
  • 0.46 kg