diff --git a/ProductFunctionTester/Main_Form.vb b/ProductFunctionTester/Main_Form.vb
index 433525c..518d8e0 100644
--- a/ProductFunctionTester/Main_Form.vb
+++ b/ProductFunctionTester/Main_Form.vb
@@ -78,7 +78,7 @@ Public Class Main_Form
     Private StartSwitch As Boolean
 
     Private TDSNHead1 As String = "DIT"
-    Private TDSNHead2 As String = "J3"
+    Private TDSNHead2 As String = "J"
 
     Private Const TestType As String = "SET"
     Private Const TestModel As String = "MAXIMUM"