Dear Dr Muhammad,
Unfortunately, I can’t comment on the results until I’ve access to the project and calculate it and figure out the issue.
Typically, we use a.u to allow using the instrument at different locations with units could be V/mV, etc… You can reflect on the units by calculating the levels from your system.
If you’d like to share your project, please email it as a zip file to ahmad.atieh@optiwave.com
Regards,
Ahmad