Good afternoon @Devang!
Thanks for assistance - it finally works! 
With regards to series made by @chris - I’ve already seen it. It is fantastic but a bit too basic for me. This is mainly due to I am not an engineer and have different background (analytical to be precise). So now ahead of me is steep learning curve because I need to know why things are programmed in this, not other way how to set particular parameters to make the things work properly and receive accurate results. Hope You will not ban me for asking lots of questions Even the most basic things are very important