Hi swat cat,
Congratulations,
Regarding scales I'm not familiar with anything in particular. I think you will need to determine if your scales output current (11uA?) or Voltage (1Vpp). I hear many find used ones on ebay such as these:
https://www.ebay.com/sch/i.html?_nkw...+EXE%2C+IBV%29
Good luck
Regards