How does the temperature transmitter measure the quality
According to the temperature transmitter detection points for detection. The detection points are as follows:
1. Check whether the accessories are complete and whether the fasteners are loose, and tighten the antenna.
2. Pay attention to handle gently, do not knock, fall. The antenna can work normally after tightening.
3. After power is added, it is forbidden for non-operators to open the front cover. If the operator misoperates, it is forbidden to save the cover.
4.According to the sensor and range indicated on the transmitter nameplate, input the corresponding resistance value, so that the output is 1V and 5V (zero potentiometer and full potentiometer can be adjusted respectively.
The feeder is connected to a rated power supply, and the load end is connected to a sensor such as a thermocouple or a thermal resistance.
The two output ends of the transmitter are connected to a multimeter, and the gear is dc current.
If the range of PT100 is -20 to 850 degrees
So 4-20 ma is 17 degrees, so -20 degrees is 4mA,
Now the room temperature is 30 degrees, the current value is 5mA, and so on to test the transmitter measurement.
Temperature transmitter fault check steps
Temperature transmitter fault inspection can be divided into temperature component inspection,temperature transmitter inspection, power supply and peripheral equipment inspection and middle wiring terminal and line inspection four steps, the four temperature transmitter fault inspection steps are applicable to any temperature transmitter manufacturer
