USB Hart Modem USB To Hart Protocol Modem Hart Transmitter HART Convertor With 24VDC & Built-in Loop Resistor Temperature Controller Suitable for All Devices of Hart Protocol (232UP upgrade)

- I've had several requests to give an overview of how to configure a HART device using a handheld programmer. So in the next few minutes I'll show you how to correctly wire a HART device on the bench, connect the handheld and access the configuration options. I'll also explain some of the different terms you'll hear and show you an alternative option to a handheld. Let's get started. This is what you'll need, a HART device, a 24 volt DC power supply, a HART handheld programmer, a multi meter and most importantly, a 250 ohm resistor. Now if you're making a scrunchy face about the resistor let me show you why you need this. Most HART devices are loop powered, meaning they get power from the PLC card they're connected to. The PLC input essentially has a power supply and some input impedance built in, normally around 250 ohms. If you remember from one of my previous videos the HART signal