Figure 2 Package Diagram of LM34
2.dESCRIPTION OF TEMPERATURE SENSOR FUNCTIONAL MODULE
The temperature sensor functional module consists of two parts: the function module box and the probe head. The LM34 temperature sensor is mounted on the probe head. Be careful to make sure that the sensor is properly mounted on the probe head. (refer to Figure 4 Labeled picture of the probe head.)
Figure 3Labeled picture of the temperature sensor circuit functional module.
By replacing the LM34 with another precision integrated-circuit temperature sensor LM35, we can easily get an output voltage proportional to the centigrade temperature. The LM35 sensor has a linear +10.0 mV/°C scale factor and a temperature range from