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PC420V-EX Series Explosion-Proof Velocity Loop Powered Sensor

Brand: Wilcoxon Sensing Technologies
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Wilcoxon’s 4-20 mA vibration sensors incorporate a velocity transducer, data acquisition circuitry, and vibration transmitter in a rugged industrial housing. The explosion-proof sensor provides a 4-20 mA output signal proportional to the overall velocity level. The 4-20 mA output is commonly accepted by process control systems including PLC, DCS or SCADA for cost-effective continuous vibration monitoring. Simplified condition based maintenance can be performed on machinery without the investment and learning curve associated with traditional vibration monitoring systems.

The velocity-output sensor is most suitable for rotating machinery which runs in the 600-3600 RPM (10 to 60 Hz) range due to its increased sensitivity to low frequency vibration. 4-20 mA sensors are specified by their full scale values, where a "-10" sensor is designed with a full scale range of 1.0 ips (inch per second) equivalent to 20 mA. By trending overall velocity, changes can be monitored and when a predetermined increase is reached, an informed decision to shut down machinery can be made.
Features
  • RMS, peak equivalent detection
  • Explosion proof certified
  • Corrosion resistant
  • Provides continuous trending of overall machine vibration
  • Hermetically sealed
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility
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Wilcoxon’s 4-20 mA vibration sensors incorporate a velocity transducer, data acquisition circuitry, and vibration transmitter in a rugged industrial housing. The explosion-proof sensor provides a 4-20 mA output signal proportional to the overall velocity level. The 4-20 mA output is commonly accepted by process control systems including PLC, DCS or SCADA for cost-effective continuous vibration monitoring. Simplified condition based maintenance can be performed on machinery without the investment and learning curve associated with traditional vibration monitoring systems.

The velocity-output sensor is most suitable for rotating machinery which runs in the 600-3600 RPM (10 to 60 Hz) range due to its increased sensitivity to low frequency vibration. 4-20 mA sensors are specified by their full scale values, where a "-10" sensor is designed with a full scale range of 1.0 ips (inch per second) equivalent to 20 mA. By trending overall velocity, changes can be monitored and when a predetermined increase is reached, an informed decision to shut down machinery can be made.
Features
  • RMS, peak equivalent detection
  • Explosion proof certified
  • Corrosion resistant
  • Provides continuous trending of overall machine vibration
  • Hermetically sealed
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility
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Specifications

Brand

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • ATEX Ex II 2 G Ex d IIC T3 II 3 G Ex NA IIC T3 -40° C ≤ Ta ≤ 85° C
  • CE
  • CSA Class I, Div. 1, 2 Grade A, B, C, D Class II, Div. 1, 2 Groups E, F, G Class III T3C Ta = 85° C (185° F) - Max.

Circuit Protection

  • Reverse Wiring Protection

Electrical - Free Leads

  • Output Leads, 18 AWG: 13 feet (396.24 cm)

Element

  • Sensing Element Design: PZT, Shear

Enclosure, Body Material

  • 303 Stainless Steel

Environmental Protection

  • Corrosion Resistant
  • Explosion-proof

Frequency

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

Loop Resistance

  • 100 to 1,000 ohms, Max.
  • 700 ohms at 24 Vdc, Max.

Mounting

  • 3/8-24 x 3/8 Depth Tapped Hole

NPT Connection

  • 1” NPT Male

Power

  • RL Min. Wattage Capability: 0.125 to 0.5 W

Power Requirement

  • 2-Wire Loop Power (Voltage at Sensor Terminals): 14-30 Vdc

Repeatability

  • ± 2 %

Seal Type

  • Hermetic

Seat / Seal Material

  • Sealing: Epoxy Sealed

Sensitivity

  • Transverse Sensitivity, Max. 5 %

Shock

  • Shock Limit: 2,500 G Peak

Temperature Range

  • -40° to 85° C (-40° to 185° F)

Turn-On Time

  • 4-20 mA Loop: < 10 seconds

Vibration

  • Vibration Limit: 250 G Peak
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