Verification Method of Armored Thermal Resistance Temperature Transmitter
Armored thermal resistance temperature transmitter structure can be divided into three parts: input bridge, amplifier circuit and feedback circuit.
The input bridge is essentially an unbalanced bridge. Thermal resistance is connected to one of the bridge arm, when the temperature changes caused by changes in thermal resistance resistance, the bridge output an unbalanced voltage signal, the voltage signal through the amplifier circuit and feedback circuit, you can get an input signal Output current I in linear function relation.
Verification Method of Armored Thermal Resistance Temperature Transmitter
1, equipment requirements: a calibrator;
2, according to the system connection method wiring;
3, according to the transmitter nameplate on the sensor and range specified, enter the corresponding resistance, so that the output is 1V and 5V (can be adjusted zero potentiometer and full potentiometer);
4, according to the range of ten equal points input the resistance value, check whether the temperature output to meet the accuracy range;
5, according to the manual technical indicators to test, should meet the technical requirements.
Above is the armored thermal resistance temperature transmitter calibration method of a brief introduction, I hope we can understand this method.
