I Tested the Best 4-20mA Signal Generator: My Hands-On Guide to Accurate Current Loop Calibration
When I first started working with industrial instrumentation, one tool quickly stood out as both simple and essential: the 4-20mA signal generator. It’s one of those devices that quietly powers a huge range of testing, calibration, and troubleshooting tasks, making it a familiar companion in process control environments. Whether I’m verifying loop performance, simulating sensor…
