VB.net GPIB Termination character problem

Question

This is my first question here. I have a problem with the termination character when sending a message on the GPIB Default character is line feed and my instrument needs a carriage return.

I´v tried to change it but when I sniffing at the bus it is still line feed. Anyone knows what I´m doing wrong?

EDIT: As I understand instrEprobe.IO.TerminationCharacter only affects the receiving message from instrument but I need to send message with carrage return and not line feed

BR Niklas

Public Function InitEprobe(ByVal strGpib As String, ByVal Type As String)
        ioMgr = New Ivi.Visa.Interop.ResourceManager
        instrEprobe = New Ivi.Visa.Interop.FormattedIO488
        Try
                    Dim Out As String = ""
                    instrEprobe.IO = ioMgr.Open("GPIB0::" & strGpib) 'set GPIBport
                    instrEprobe.IO.TerminationCharacter = 13    ' set termination character
                    instrEprobe.IO.TerminationCharacterEnabled = True
                    instrEprobe.WriteString("I") 'Send command to instrument
                    Wait(500)
                    Out = instrEprobe.ReadString 'Read command from instrument
                    Return Out
                
        Catch exp As Exception
            Return exp.ToString
        End Try
    End Function