diff --git a/mcpha_daq.ui b/mcpha_daq.ui
index 170b6e67d2856698a4877106c5e7d52a79cc2aa0..2ca6bef5bb9a766eed4e1a799b3cbf67dd28c676 100644
--- a/mcpha_daq.ui
+++ b/mcpha_daq.ui
@@ -305,14 +305,14 @@
       <item>
        <widget class="QPushButton" name="startButton">
         <property name="text">
-         <string>Start</string>
+         <string>Start monitor</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QPushButton" name="startDAQButton">
         <property name="text">
-         <string>Start DAQ</string>
+         <string>Start DAQ mode</string>
         </property>
        </widget>
       </item>
diff --git a/redPoscdaq.py b/redPoscdaq.py
index 5dddd8e6d2a25e5b9aad446cdf34e79387847117..73513ecaa45bf298994517697abcf3df5c01ba35 100755
--- a/redPoscdaq.py
+++ b/redPoscdaq.py
@@ -163,7 +163,7 @@ class rpControl(QMainWindow, Ui_MCPHA):
         self.startTimer = QTimer(self)  # timer for network connectin
         self.startTimer.timeout.connect(self.start_timeout)
         self.readTimer = QTimer(self)   # for readout 
-        self.readTimer.timeout.connect(self.update_oscDisplay)
+        self.readTimer.timeout.connect(self.update_oscData)
 
         # transfer command-line arguments to gui
         self.osc_daq.levelValue.setValue(self.trigger_level)
@@ -303,7 +303,7 @@ class rpControl(QMainWindow, Ui_MCPHA):
         self.set_negator(0, self.neg1Check.isChecked())
         self.set_negator(1, self.neg2Check.isChecked())
         #
-        # finally, start readout timer calling update_oscDisplay()
+        # finally, start readout timer calling update_oscData()
         self.readTimer.start(self.readInterval)
 
        #### start oscilloscope in DAQ mode
@@ -325,7 +325,7 @@ class rpControl(QMainWindow, Ui_MCPHA):
             view[:] = np.frombuffer(self.socket.read(size), np.uint8)
             return True
 
-    def update_oscDisplay(self):
+    def update_oscData(self):
         """get new data from RP and update oscilloscope display (triggered by QTimer:readTimer)
         """
         if not self.osc_waiting: