Setting the Total Counter Reading Externally 
Use
If you want to enter an initial value for a counter, on the basis of which all further counter readings or counter reading differences are to be entered, you can do so using a measurement document.
A total counter reading that is set externally (also known as an "initial document") forms the basis for
counter-based maintenance.Procedure
The Replace Counter dialog box is displayed.
You return to the General Data screen. The field TotalCtrReading is now ready for input.