Smart Wireless THUM Adapter Effect on the 4-20 mA Loop

The Smart Wireless THUM adapter is used to wirelessly communicate HART data acquired from a wired HART device using a self-organizing WirelessHARTTM network. The THUM adapter works with any wired HART revision 5.0 devices. This technical paper describes how the THUM adapter maintains the integrity of the 4-20 mA loop, while collecting data and scavenging power for operation from the loop.