diff --git a/Rs.DeweyTester/FormMain.cs b/Rs.DeweyTester/FormMain.cs
index d529241..1f1088b 100644
--- a/Rs.DeweyTester/FormMain.cs
+++ b/Rs.DeweyTester/FormMain.cs
@@ -32,7 +32,7 @@ namespace Rs.MotionPlat
             InitializeComponent();
             DischargeFlow.Instance.workFinishedEvent += () => {
                 GlobalVar.Clear = false;
-                switchButton1.Checked = false;
+                switchButton1.Checked = true;
             };
         }
 
@@ -202,9 +202,11 @@ namespace Rs.MotionPlat
             GlobalTray.NozzleTray = trayNozzle ;
             //StockManager.Instance.Start();
             LoadStockStatus();
-            switchButton1.Checked = GlobalVar.Clear; ;
-            
             
+            if(GlobalVar.Clear==false)
+            {
+                switchButton1.Checked = true;
+            }
             
 
             //uTestCell1.BindEntity(TestFixtureManager.Instance.GetTestFixture(1));