diff --git a/GUIs/GuiLakeshore.mlapp b/GUIs/GuiLakeshore.mlapp
index 3b094ed..56c4991 100644
Binary files a/GUIs/GuiLakeshore.mlapp and b/GUIs/GuiLakeshore.mlapp differ
diff --git a/GUIs/GuiTpg.mlapp b/GUIs/GuiTpg.mlapp
index 2c536a5..c9ce05a 100644
Binary files a/GUIs/GuiTpg.mlapp and b/GUIs/GuiTpg.mlapp differ
diff --git a/Utility functions/runLogger.m b/Utility functions/runLogger.m
index ddef510..bdc7ba6 100644
--- a/Utility functions/runLogger.m	
+++ b/Utility functions/runLogger.m	
@@ -1,73 +1,101 @@
-% Create a logger based on the instrument built-in method
+% Create and add to Collector an instrument logger using buil-in method 
+% of the instrument class. 
+%
+% This function is called with two syntaxes:
+%
+%   runLogger(instr_name) where instr_name corresponds to an entry in 
+%       the local InstrumentList 
+%
+%   runLogger(Instrument) where Instrument is an object that is 
+%       already present in the collector
 
-function [Lg, Gui] = runLogger(instr_name)
-    Instr = runInstrument(instr_name);
+function [Lg, Gui] = runLogger(arg)
+
+    % Get the instance of collector
+    C = MyCollector.instance();
     
-    % Make logger name
+    if ischar(arg)
+        
+        % The function is called with an instrument name
+        instr_name = arg;
+        Instr = runInstrument(instr_name);
+    else
+        
+        % The function is called with an instrument object
+        Instr = arg;
+        
+        % Find the instrument name from the collector
+        ri = C.running_instruments;
+        ind = cellfun(@(x)isequal(Instr, getInstrument(C, x)), ri);
+        
+        assert(nnz(ind) == 1, ['Instrument must be present ' ...
+            'in Collector']);
+        instr_name = ri{ind};
+    end
+    
+    % Make a logger name
     name = [instr_name 'Logger'];
     
     % Add logger to the collector so that it can transfer data to Daq
-    C = MyCollector.instance();
-    
     if ~isrunning(C, name)
         
         % Create and set up a new logger
         if ismethod(Instr, 'createLogger')
             try
                 dir = getLocalSettings('default_log_dir');
             catch
                 try
                     dir = getLocalSettings('measurement_base_dir');
                     dir = createSessionPath(dir, [instr_name ' log']);
                 catch
                     dir = '';
                 end
             end
 
             Lg = createLogger(Instr);
 
             createLogFileName(Lg, dir, instr_name);
         else
             warning(['A logger is not created as instrument class ' ...
                 '''%s'' does not define ''createLogger'' method.'], ...
                 class(Instr));
             return
         end
         
         % Add logger to Collector
         addInstrument(C, name, Lg, 'collect_header', false);
     else
         disp(['Logger for ' instr_name ' is already running. ' ...
             'Returning existing.'])
         
         Lg = getInstrument(C, name);
     end
     
     % Check if the logger already has a GUI
     Gui = getInstrumentGui(C, name);
     if isempty(Gui)
         
         % Run a new GUI and store it in the collector
         Gui = GuiLogger(Lg);
         addInstrumentGui(C, name, Gui);
         
         % Display the instrument's name 
         Fig = findFigure(Gui);
         if ~isempty(Fig)
            Fig.Name = char(name);
         else
            warning('No UIFigure found to assign the name')
         end
         
         % Apply color scheme
         applyLocalColorScheme(Fig);
     else
         
         % Bring the window of existing GUI to the front
         try
             setFocus(Gui);
         catch
         end
     end
 end