diff --git a/Aucma.Scada.Business/MainBusiness.cs b/Aucma.Scada.Business/MainBusiness.cs
index eefc6bf9..786635f8 100644
--- a/Aucma.Scada.Business/MainBusiness.cs
+++ b/Aucma.Scada.Business/MainBusiness.cs
@@ -74,7 +74,7 @@ namespace Aucma.Scada.Business
 
                 Task.Run(() =>
                 {
-                    Thread.Sleep(2000);
+                    Thread.Sleep(2500);
                     //MvCodeHelper1.DeviceListAcq();//获取创建设备
                     // MvCodeHelper1.StartGrab();  // 开启触发扫码接收数据
                     MvCodeHelper.Liner();