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 cost-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. Class I areas are defined into groups by the presence of the following flammable materials:
- Group A - Acetylene
- Group B - Hydrogen
- Group C - Ethylene
- Group D - Propane
- True RMS or peak output
- Case isolated
- Hermetically sealed
- EMI/RFI shielded
- Reverse wiring protection
- Certified intrinsically safe for use in hazardous areas
- Manufactured in an approved ISO 9001 facility
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.