Hi all
I would like to build a digital thermometer that can measure and display up to 300deg Celsius. since the LM35 is suitable only up to 150 deg, I think that the use of a RTD such as PT100 can be the solution. the PT100 has a resistance of 100 ohms at 0 deg and 212 ohms at 300 deg. I need a circuit that can read those two values as the range and translate it to a display. I was thinking that the 7106 as a panel meter might be OK.
Thanx for your ideas and help.
I would like to build a digital thermometer that can measure and display up to 300deg Celsius. since the LM35 is suitable only up to 150 deg, I think that the use of a RTD such as PT100 can be the solution. the PT100 has a resistance of 100 ohms at 0 deg and 212 ohms at 300 deg. I need a circuit that can read those two values as the range and translate it to a display. I was thinking that the 7106 as a panel meter might be OK.
Thanx for your ideas and help.