Sensor Description:

The DT012 is a high accuracy temperature sensor for measurements between -10° c and 50° c. The sensor is composed of the sensor body, a Fourier Systems’ Egg Shaped sensor case, and a temperature probe with a 30cm cord. The DT012 is equipped with a zero offset calibration screw, for higher precision.

The temperature probe on the DT012 receives a 9V input. It outputs current differentials of 0.1mA for every 1° c. The output current from the probe passes through a resistor, and the Voltage measured on that resistor is then adjusted by an amplifier to a range of 0-5 Volts, accepted by the Analog-Digital converter in the Data-Logger. The proper result is then recorded into the Logger’s memory.

The DT012 has a simple calibration mechanism for more accurate measurements. In the back of the Egg-Shaped sensor case you will find a small hole. In order to calibrate the sensor you will need a reference temperature (e.g. a glass of ice water in 0° c). Insert the probe into the water, then start a data recording. Insert a flat screwdriver into the calibration hole and slowly turn it until the measured value is exactly the same as the reference value. The sensor is now calibrated.

The DT012 is used for precise temperature measurements in chemistry experiments such as Acid-Base Titration, Endothermic-Exothermic Reactions or the combined gas law, and in Biology experiments such as Loss of heat through sweat production, or measurements of abiotic conditions under a rock.