Learn the fundamentals of using 4 to 20 mA loops to transfer process information, including how to measure and source signals, as well as how to interpret the measurements.

What you will learn in this webinar:

  • What makes a 4 to 20 mA control loop “tick”
  • What can go wrong with a 4 to 20 mA loop?
  • How do you troubleshoot and what types of tools are best for measuring and sourcing signals?
  • Methods for measuring signals and how to interpret the measurements
  • How to test PLC, DCS, and indicator inputs with 4 to 20 mA sourcing tools
  • How to test and isolate issues with suspect power supplies
  • Troubleshooting suspect transmitters
  • How to use a HART smart transmitter as a mA source
  • Testing input/output with 4 to 20 mA sourcing
  • Testing control valves with 4 to 20 mA sourcing
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