3 wire Pt100 Temperature Incorrect .
In my current project I am using PM573 and Other IO (Remote IO also)
For tempature control we are using 3 Wire Pt100,
But in commissioning I comes to know its show wrong tempature.
So I have tried with calibrited meter for create perticular resistance and also tried to connect direct resistance to modules.
( I have triend all chanel of my AI523, I have also changed base, Module, AX522 and AX521, also changed position of ZP and UP)
Varation of tempature is vary form 1 to 2 Degree.
Does any others have goes through this problem?
Can you explain us, how you come to know that there is temparature variations of 1-2 degrees? This will help us to understand problem clearly.
I hope you have made proper configuration e.g check attachment capture 1
Certain methods are available to check PT100 accuracy. Very simple method is attached please check capture 2 . By this activity we will come to know the transducer reliablility.
Also if possible, can you please share your result with the resistance value?