diff --git a/digiSettingsPanel.h b/digiSettingsPanel.h
index 2bbad1d..129ab75 100644
--- a/digiSettingsPanel.h
+++ b/digiSettingsPanel.h
@@ -115,7 +115,7 @@ private:
   QPushButton * pbCopyDigi;
   
   //------------ status
-  QLineEdit * leInfo[MaxNumberOfChannel][12];
+  QLineEdit * leInfo[MaxNumberOfDigitizer][12];
   QPushButton * LEDStatus[MaxNumberOfDigitizer][19];
   QPushButton * ACQStatus[MaxNumberOfDigitizer][19];
   QLineEdit * leTemp[MaxNumberOfDigitizer][8];
diff --git a/mainwindow.cpp b/mainwindow.cpp
index faacec3..0f4225b 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -63,8 +63,8 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent){
     leTrigger = nullptr;
     leAccept = nullptr;
 
-    scalarThread = new ScalarThread();
-    connect(scalarThread, &ScalarThread::updataScalar, this, &MainWindow::UpdateScalar);
+    scalarThread = new TimingThread();
+    connect(scalarThread, &TimingThread::TimeUp, this, &MainWindow::UpdateScalar);
 
   }
   
diff --git a/mainwindow.h b/mainwindow.h
index faf3c5c..c4d46a5 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -118,7 +118,7 @@ private:
   //@----- scalar;
   QMainWindow  * scalar;
   QGridLayout  * scalarLayout;
-  ScalarThread * scalarThread;
+  TimingThread * scalarThread;
   QPushButton  * bnOpenScalar;
   QLineEdit  *** leTrigger; // need to delete manually
   QLineEdit  *** leAccept; // need to delete manually
diff --git a/manyThread.h b/manyThread.h
index d4a1f62..cbb2755 100644
--- a/manyThread.h
+++ b/manyThread.h
@@ -62,46 +62,17 @@ private:
   bool isSaveData;
 };
 
-//^#===================================================== UpdateTrace Thread
-class UpdateTraceThread : public QThread {
+//^#======================================================= Timing Thread, for some action need to be done periodically
+class TimingThread : public QThread {
   Q_OBJECT
 public:
-  UpdateTraceThread(QObject * parent = 0) : QThread(parent){
-    waitTime = 2;
-    stop = false;
-  }
-  unsigned int GetWaitTimeSec() const {return waitTime;}
-  void SetWaitTimeSec(unsigned sec) {waitTime = sec;}
-  void Stop() {this->stop = true;}
-  void run(){
-    unsigned int count = 0;
-    stop = false;
-    do{
-      usleep(100000);
-      count ++;
-      if( count % waitTime == 0){
-        emit updateTrace();
-      }
-    }while(!stop);
-  }
-signals:
-  void updateTrace();
-
-private:
-  bool stop;
-  unsigned int waitTime; //100 of milisec
-};
-
-//^#======================================================= Scalar Thread
-class ScalarThread : public QThread {
-  Q_OBJECT
-public:
-  ScalarThread(QObject * parent = 0 ) : QThread(parent){
+  TimingThread(QObject * parent = 0 ) : QThread(parent){
     waitTime = 20; // 10 x 100 milisec
     stop = false;
   }
   void Stop() { this->stop = true;}
-  unsigned int GetWaitTimeinSec() const {return waitTime/10;}
+  float GetWaitTimeinSec() const {return waitTime/10.;}
+  void SetWaitTimeSec(float sec) {waitTime = sec * 10;}
   void run(){
     unsigned int count  = 0;
     stop = false;
@@ -109,12 +80,12 @@ public:
       usleep(100000);
       count ++;
       if( count % waitTime == 0){
-        emit updataScalar();
+        emit TimeUp();
       }
     }while(!stop);
   }
 signals:
-  void updataScalar();
+  void TimeUp();
 private:
   bool stop;
   unsigned int waitTime;
diff --git a/scope.cpp b/scope.cpp
index 92035a3..ba8537f 100644
--- a/scope.cpp
+++ b/scope.cpp
@@ -54,8 +54,8 @@ Scope::Scope(Digitizer2Gen **digi, unsigned int nDigi, ReadDataThread ** readDat
   xaxis->setLabelFormat("%.0f");
   xaxis->setTitleText("Time [ns]");
 
-  updateTraceThread = new UpdateTraceThread();
-  connect(updateTraceThread, &UpdateTraceThread::updateTrace, this, &Scope::UpdateScope);
+  updateTraceThread = new TimingThread();
+  connect(updateTraceThread, &TimingThread::TimeUp, this, &Scope::UpdateScope);
   
   //*================ add Widgets
   int rowID = -1;
@@ -283,7 +283,7 @@ Scope::Scope(Digitizer2Gen **digi, unsigned int nDigi, ReadDataThread ** readDat
   QLabel * lbhints = new QLabel("Type 'r' to restore view, '+/-' Zoom in/out, arrow key to pan.", this);
   layout->addWidget(lbhints, rowID, 0, 1, 4);
   
-  QLabel * lbinfo = new QLabel("Trace update every " + QString::number(updateTraceThread->GetWaitTimeSec()) + " sec.", this);
+  QLabel * lbinfo = new QLabel("Trace update every " + QString::number(updateTraceThread->GetWaitTimeinSec()) + " sec.", this);
   lbinfo->setAlignment(Qt::AlignRight);
   layout->addWidget(lbinfo, rowID, 5);
 
diff --git a/scope.h b/scope.h
index ccaddd9..03724e1 100644
--- a/scope.h
+++ b/scope.h
@@ -162,7 +162,7 @@ private:
   unsigned short nDigi;
 
   ReadDataThread ** readDataThread;   
-  UpdateTraceThread * updateTraceThread;
+  TimingThread * updateTraceThread;
 
   QChart      * plot;
   QLineSeries * dataTrace[6];