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PC420A Dual Output Series Acceleration Loop Powered Sensor
Brand: Wilcoxon Sensing TechnologiesWilcoxon’s 4-20 mA vibration sensors integrate easily with an existing PLC, DCS or SCADA system. The PC420A series dual output sensors provide 24/7 monitoring of overall machine vibration for continuous trending, alerting users to changing machine conditions and helping to guide maintenance in prioritizing the need for service. The choice of true RMS, true peak or peak output allows you to choose the sensor that best fits your industrial requirements. True peak is useful for detecting loose parts such as valves on reciprocating machinery.
The 4-20 mA output of the PC420A series is proportional to 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 (RMS or peak) of vibration is present. The dynamic output signal is derived from an internal buffered amplifier. The dynamic output requires the 4-20 mA loop be powered. No constant-current supply diode is necessary, the BOV at the dynamic output is developed by the internal amplifier.
Features- Peak equivalent, true RMS or true peak output
- Corrosion resistant
- Hermetically sealed
- ESD protection
- Overload protection
- Reverse wiring protection
- Dynamic signal output
Specifications
Approvals & Certifications
- CE
Circuit Protection
- Overload Protection
- Reverse Wiring Protection
Electrical Connectors
- Cable (J9T3A)
- Mating Connector: R6 G Typical
- Output Connector: 3-Pin, MIL-C-5015 Style
Element
- Sensing Element Design: PZT Ceramic, Shear
Enclosure, Body Material
- 316L Stainless Steel
Environmental Protection
- Corrosion Resistant
Frequency
- Frequency Response (± 10 %): 10 Hz to 1 kHz
- Frequency Response (± 3 dB %): 4 Hz to 2 kHz
- Resonant Frequency, Mounted, Nominal: 25 kHz
Loop Resistance
- Maximum 700 Ω
Mounting
- 1/4-28 Tapped Hole
Noise
- Dynamic Output Noise, Equivalent G, 2.5 Hz to 10 kHz: 0.002 Ips (PC420Ax-yy-DA)
- Dynamic Output Noise, Equivalent G, 2.5 Hz to 10 kHz: 2 mg (PC420Ax-yy-DV)
Non-Linearity
- Amplitude Non-Linearity: Max. 1 %
Power
- Minimum Wattage Capability: 0.125 to 0.5 W at 12-30 Vdc
Power Requirement
- 2-Wire Loop Power (Voltage at Sensor Terminals): 10-30 Vdc
Repeatability
- ± 2 %
Seal Type
- Hermetic
Sensitivity
- Sensitivity, ± 10 %: 100 mV/g (PC420Ax-yy-DA)
- Sensitivity, ± 10 %: 100 mV/inch/sec (PC420Ax-yy-DV)
- Transverse Sensitivity: Max.
Shock
- Shock Limit: 2,500 G Peak
Temperature Range
- -40° to 85° C (-40° to 185° F)
Turn-On Time
- 4-20 mA Loop: < 30 seconds
Vibration
- Vibration Limit: 250 G Peak