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PC420A Series Intrinsically Safe 4-20 mA Loop Powered Sensor

Brand: Wilcoxon Sensing Technologies

Wilcoxon’s 4-20 mA vibration sensors incorporate an accelerometer, data acquisition circuitry, and vibration transmitter in a rugged industrial housing. They provide 4-20 mA output signal proportional to the overall vibration level. The 4-20 mA output is commonly accepted by process control systems such as a PLC, DCS or SCADA system, for effective continuous vibration monitoring. If you already have a process control system that accepts 4-20 mA inputs - like a PLC or DCS network - you are already taking data points on pressure, temperature, or maybe flow. You can send vibration data to your PLC or DCS as well. By connecting into process control systems, you are able to perform simplified condition based maintenance on machinery without the investment and learning curve associated with traditional vibration monitoring systems. 

The PC420A sensors are classifed for usage in Class I Division 1/Zone 0/1 locations where ignitable concentrations of flammable gases, vapors or liquids are present continuously under normal operating conditions.
Features
  • True RMS or peak output
  • Case isolated
  • Hermetically sealed
  • ESD-protected
  • EMI/RFI shielded
  • Reverse wiring protection
  • Certified intrinsically safe for use in hazardous areas
  • Manufactured in an approved ISO 9001 facility

1 - 9 of 9 Part Numbers
PC420AP-05-IS
PC420AP-05-IS
  • 4-20 mA Output Type - Acceleration, Equivalent Peak
  • 4-20 mA Full Scale - 5 G (49 m/sec² )
PC420AP-10-IS
PC420AP-10-IS
  • 4-20 mA Output Type - Acceleration, Equivalent Peak
  • 4-20 mA Full Scale - 10 G (98 m/sec² )
PC420AP-20-IS
PC420AP-20-IS
  • 4-20 mA Output Type - Acceleration, Equivalent Peak
  • 4-20 mA Full Scale - 20 G (196 m/sec² )
PC420AR-05-IS
PC420AR-05-IS
  • 4-20 mA Output Type - Acceleration, RMS
  • 4-20 mA Full Scale - 5 G (49 m/sec² )
PC420AR-10-IS
PC420AR-10-IS
  • 4-20 mA Output Type - Acceleration, RMS
  • 4-20 mA Full Scale - 10 G (98 m/sec² )
PC420AR-20-IS
PC420AR-20-IS
  • 4-20 mA Output Type - Acceleration, RMS
  • 4-20 mA Full Scale - 20 G (196 m/sec² )
PC420ATP-05-IS
PC420ATP-05-IS
  • 4-20 mA Output Type - Acceleration, True Peak
  • 4-20 mA Full Scale - 5 G (49 m/sec² )
PC420ATP-10-IS
PC420ATP-10-IS
  • 4-20 mA Output Type - Acceleration, True Peak
  • 4-20 mA Full Scale - 10 G (98 m/sec² )
PC420ATP-20-IS
PC420ATP-20-IS
  • 4-20 mA Output Type - Acceleration, True Peak
  • 4-20 mA Full Scale - 20 G (196 m/sec² )
1 - 9 of 9 Part Numbers

Specifications

Approvals & Certifications

  • ATEX Ex II I G EEx ia II C T3 -40° C ≤ Ta ≤ +85° C
  • CE
  • CSA (C,US) Class I, Div. 1, Grade A, B, C, D T3C Ta = 85° C (185° F) - Max.

Approvals & Certifications

  • ISO 9001

Circuit Protection

  • Reverse Wiring Protection

Electrical Connectors

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

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • Intrinsically Safe

Frequency

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

Loop Resistance

  • 400 to 700 ohms, Max.
  • 600 ohms at 24 Vdc, Max.

Mounting

  • 1/4-28 Tapped Hole

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Power

  • RL Min. Wattage Capability: 0.25 to 0.5 W at 20-26 Vdc

Power Requirement

  • 2-Wire Loop Power (Voltage between Pins A & B): 12-30 Vdc

Repeatability

  • ± 2 %

Seal Type

  • Hermetic

Sensitivity

  • Transverse Sensitivity: Max. 5 %

Shock

  • Shock Limit: 2,500 G Peak

Turn-On Time

  • 4-20 mA Loop: < 30 seconds

Vibration

  • Vibration Limit: 250 G Peak
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