Wilcoxon’s PC420ATP series 4-20 mA vibration sensors provide 24/7 output of true peak acceleration for trending in PLC systems, alerting users to changing machine conditions and helping to guide maintenance in prioritizing the need for service. True peak is useful for detecting loose valves, rod knock and piston slap on reciprocating machinery.

The 4-20 mA output of the PC420ATP series is proportional to true peak acceleration vibration. An output of 4 mA indicates a level of 0 g or no vibration present. A full-scale reading of 20 mA indicates that the maximum range of vibration is present.

Features:

  • True peak output
  • Corrosion resistant
  • Hermetically sealed
  • ESD protection
  • Overload protection
  • Reverse wiring protection
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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Selected Configuration

Model #:

Model PC420ATP Series

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Configuration

reset configuration

Agency Approvals

  • CE

Environmental Protection

  • Corrosion-Proof

Temperature Range

  • -40° to 85° C (-40° to 185° F)

Repeatability

  • ±2%

Sensitivity

  • Transverse Sensitivity, Maximum: 5%

Vibration

  • Vibration Limit: 250g Peak

Shock

  • Shock Limit: 2,500g Peak

Power Requirement

  • Two-Wire Loop Power (Voltage at Sensor Terminals): 12-30 Vdc

Loop Resistance

  • 100 to 1,000 Ohms Maximum at 12-30 Vdc Supply
  • Loop Resistance at 24 Vdc, Maximum: 700 Ohms

Frequency

  • Frequency Response (±10%): 10 Hz to 1 kHz
  • Frequency Response (±3 dB): 4 Hz to 2 kHz

Electrical Connectors

  • Cable (J9T2A)
  • Mating Connector: R6 Type
  • Output Connector: 2-Pin, MIL-C-5015 Style

Output

  • 4-20 mA

Circuit Protection

  • ESD Protection
  • Overload Protection
  • Reverse Wiring Protection

Turn-On Time

  • 4-20 mA Loop: <30 Seconds

Power

  • Minimum Wattage Capability: 0.125 to 0.5 W at 12-30 Vdc Supply

Mounting

  • 1/4-28 Tapped Hole

Enclosure/Body Material

  • Stainless Steel

Element

  • Sensing Element Design: PZT, Shear

Seal Type

  • Hermetic