Adapter
A WirelessHART Adapter may be directly installed on the instrument or any convenient mounting location in the analog loop, and may be powered in a number of different ways.
Loop Powered Adapter
A WirelessHART Adaptor may be powered in any of a multitude of ways. The adaptor may be powered through the connected instrument’s signal loop. This is described as ‘loop powered’ because the adaptor is powered directly from the HART loop.
Line Powered Adapter
Another way to power the adaptor is described as ‘line powered’. In this case the adaptor is connected directly to a power supply and powered via some DC supply.
Multi-drop Adapter
Multidrop means that the adaptor is connected to multiple HART instruments at the same time. The maximum amount of instruments connected is 4.
Line Powered for 4...20mA Devices
Legacy devices not utilizing HART protocols can still be added onto the HART network with the use of Phoenix Contact’s Adaptor. As long as the instrument outputs a 4-20mA current, the adaptor can be added and the primary value of the device will be returned to the gateway as a HART value.
Programming
Programming the RAD-WHA-1/2NPT is very simple with the use of a HART programmer connected directly to the Adaptor’s test loops. Also when connected to the Adaptor’s test loops it is possible to program the connected device, so that it is not necessary to unplug and re-plug the programmer.
