Elaborate on the validation rules for thermocouples and thermocouple temperature transmitters

Regarding the use of the instrument, we only know the use. In fact, any inspection and testing instrument has undergone a simple factory inspection before leaving the factory, and has not adjusted the parameters accurately. Therefore, after purchasing new testing equipment, we should verify the equipment to ensure the accuracy of the inspection values u200bu200bof the equipment. For such an important testing device as a temperature transmitter, of course, we have to verify it before using it. At present, the temperature transmitters commonly used in the market mainly include thermocouple temperature transmitters and thermal resistance temperature transmitters. Before use, we need to test the temperature transmitter to eliminate unnecessary faults and errors. The effect test requires professional operation. The professional and technical personnel of Anhui Botai Instrument will briefly introduce the effect test method of thermocouple and thermal resistance temperature transmitter, which will help you to understand the effect test: 1. Thermocouple temperature transmission Calibration method of the device: 1. First, we need to prepare a digital voltmeter; 2. Carry out the verification wiring according to the instruction manual of the verification equipment; 3. Enter the potential values u200bu200baccording to the tenths of the range to check whether the temperature output conforms to the accuracy range. 4. According to the sensor and range value indicated on the nameplate of the transmitter, input the corresponding resistance value so that the output value is 1V and 5V respectively; Validation is correct. 2. Calibration method of thermal resistance temperature transmitter: 1. First of all, we need to prepare a digital voltmeter; 2. The wiring method is operated according to the above-mentioned thermocouple integrated temperature transmitter; 3. Input each resistance according to the range 4. Input the corresponding resistance value according to the sensor and range scale indicated on the nameplate of the transmitter, so that the output is 1V and 5V; 5. Perform according to the required value of the equipment manual test. According to the above description, it is not difficult to see that there is not much difference in the verification methods of thermal resistance and thermocouple temperature transmitters, and the basic principles of verification are the same. The method can complete the verification work by yourself. If you have any questions, you can contact the engineers of Jiutian Instruments, and we will provide you with detailed technical guidance!

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