diff --git a/Aucma.Core.ProductOffLine/ViewModels/MainWindowViewModel.cs b/Aucma.Core.ProductOffLine/ViewModels/MainWindowViewModel.cs
index 24be931b..78c31e9b 100644
--- a/Aucma.Core.ProductOffLine/ViewModels/MainWindowViewModel.cs
+++ b/Aucma.Core.ProductOffLine/ViewModels/MainWindowViewModel.cs
@@ -67,7 +67,7 @@ namespace Aucma.Core.ProductOffLine.ViewModels
 
                 Task.Run(() =>
                 {
-                    Thread.Sleep(2500);
+                    Thread.Sleep(4000);
                     //MvCodeHelper1.DeviceListAcq();//获取创建设备
                     // MvCodeHelper1.StartGrab();  // 开启触发扫码接收数据
                     Business.MvCodeHelper.Liner();