Posted by dapj20 on Jan 23, 2016 in Opamp-Circuits, Temperature-Measurement
The OP07 is in a non inverting amplifier so as not load the mV of thermocouple, the zeners are to protect circuit if junction contacts heaters or the earth gets broken. Thermocouple and Pt-100 RTD The RC is to filter out 50Hz pick up in thermocouple… more »