iChart can only accept imported null data after the initiation fill has been changed to allow that.
1. Open iChart without the current project.
2. From the main menu select Help | Open Users Folder.
3. Go up (1) level in Windows Explorer.
4. Open a file named “ICHART.INI” with notepad.
5. Search for “[Device]”.
- If found, directly below, add a new line as follows
- If “[Device]” is not found, then add the following lines to the very bottom of the file
6. Save and close the .ini file. Now import the data again. This will allow for importing incomplete data.