If you don't know what sensor it is then how are you going to build it?
The sensor is inside the instrument. I guess it uses some other communication inside the instrument.
But the instrument converts it to a 4 - 20mA loop communication output to connect to the primary display.
Those who gave me information were first saying that 4 - 20mA will be scaled to 0000 - 9999 on the display, but then they are saying that the minimum and maximum measurements are programmable, and for eg. 0008 - 2000 micron. If so then the 0008 - 2000 micron should be 4-20mA.
So thats why I said that if there instrument is programmable then the display should also have an option to scale its input to its minimum to maximum value.
Unless of course this is your homework and you are trying to get us to do it.
Sir, Mike.. you are again getting me wrong.
Yes, of course this is homework. But I am not getting everyone here to do it for me.
I am just writing what I am told about the instrument, so that you all can help me understand.
You don't seem to understand very much and are attempting a project that is way outside your current skill set.
Yes, I am not an expert at all. I may not succeed in this project, but I don't find any problem in attempting it. I guess this will leave me at least with some knowledge.
So I am keeping a positive view.