Looking at Dewey's reply it looks like my "condensor after measurement" schematic is too complex and quite unnecessary. The temperaure for 1016hPa from the table is 100.3C, so if Rossi really has 100.1C output difficult for him to claim it is steam especially because the primary loop pressure is unlikely to be the same as atmospheric. At very least it will have a pressure gradient due to the pump.
But the condensor idea means Rossi could have apparent 100% vapour on output of e-cats but still be providing pure liquid phase water to the output.