Amphenol Wilcoxon PC420 4mA to 20mA Loop-Powered Sensors

Amphenol Wilcoxon PC420 4mA to 20mA Loop-Powered Sensors provide cost-effective, condition-based monitoring of trending vibration data. Amphenol Wilcoxon PC420 sensors represent the overall level of vibration by a loop current of 4mA to 20mA, where 4mA represents no vibration and 20mA represents a sensor's full-scale vibration level. Vibration data can be incorporated with common monitoring parameters, such as pressure, temperature, or flow.


  • Top or side-exit sensors with or without an integral cable
  • Selectable full-scale values
  • Acceleration, velocity, or displacement models with output signals representative of RMS or peak levels
  • Temperature probe integrated into sensor housing provides temperature data at the mounting location
  • Custom-banded sensors with true peak detection for cavitation detection or reciprocating engine monitoring
  • Hazardous-area certifications available


  • Motors
  • Pumps
  • Fans
  • Cooling towers
  • Compressors
  • Gearboxes


  • 4mA to 20mA loop current
  • 1.0Hz to 2.0KHz or 3.5Hz to 2.0KHz frequency range
  • +105°C maximum temperature
  • Case isolated grounding
Published: 2021-04-16 | Updated: 2022-03-11