public ECGModel getModel() {
   // If selected source console is disposed, databinding and its Name2TextConsoleConverter returns
   // null.
   // Because only the current source console can be the disposed one, we set them.
   if (ecgModel.getSource() == null) {
     ecgModel.setSource(ecgModelOrig.getSource());
   }
   return ecgModel;
 }