diff --git a/Services/LanScpiSocket.cs b/Services/LanScpiSocket.cs
index 778333b..ed19682 100644
--- a/Services/LanScpiSocket.cs
+++ b/Services/LanScpiSocket.cs
@@ -20,7 +20,7 @@ namespace ASTM_D7896_Tester.Services
         public int ReadWriteTimeoutMs { get; set; } = 5000;
 
         // 默认电压量程（伏特），可根据实际信号修改，例如 0.1, 1, 10, 100, 1000
-        public double DefaultVoltageRange { get; set; } = 1.0;
+        public double DefaultVoltageRange { get; set; } = 10.0;
 
         public async Task ConnectAsync(string ipAddress, int port = 45454)
         {