What type of configuration is needed in the field when the meter is being installed?

This will vary by manufacturer, but typically the only thing needed in the field is to wire the unit up and install into the pipe. Thermal flow meters are calibrated before they go to the manufacturer for the individual application. This way the 4-20, pipe size, type of gas, is already taken into account. There are always ways to communicate with the instrument if needed but it will vary what configurations can be changed. Some suppliers have a display that the user can operate; sometimes external hardware/software is needed. There are many settings that can be accessed and modified in our unit, although typically this isn’t needed.