I have 2 Loop Power Indicators......And I have an issue with the calibration of it. The program is correct and checked twice.
Also my 1 device is working properly. But another one having problem. Whenever I Set the value of Zero and Span with no SQRT value to the -1999 to 9999
the device shows its expected values between 4 to 20 volts.
But The problem is When I change the zero and span to 0000 to 1000 vice versa, it shows variation of 20 digits.
It shows every time. I checked the Voltages between resistors and capacitors as per my schematic, but i found no querry.
so please give me suggestion how to sort out this problem:!::!::!::!::!: