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The working principle of the number of temperature transmitters
2021-05-11

带数显温度变送器工作原理 上海松江维连电子Band display temperature transmitter working principle


1. TR10 number display temperature transmitter work principle
Thermocouple or thermal resistance sensor converts the test temperature into a electrical signal, and then send the signal to the input network of the transmitter. > Hot Electric Puppet Compensation and other related circuits. After zero, the signal input to the computing amplifier for signal amplification. The magnified signal is output by 4-20mA DC current after calculating the V/I converter; the other way is processed by the A/D converter to the header. There are two linear circuits of the transmitter, both of which are feedback. For thermal resistance sensors , correct the hot electric puppet sensor by a positive feedback method, and correct the approximation method of multi -segment folding lines.

2. The main features of the display temperature transmitter
1. Silicon rubber or epoxy resin sealing structure, so earthquake resistance, humidity resistance, suitable for installation and use in harsh on -site environment.
2. Install the on-site wiring box for the thermocouple and thermal resistance, and directly output the output signal of 4-20mA and 0-10mA. This not only saves expensive compensation wire costs, but also improves the anti -interference ability during the signal's long -distance transmission process;
3. The thermocouple transmitter has a cold -end temperature automatic compensation function;
4. High accuracy, low power consumption, wide range of environmental temperature, stable and reliable work;
5. The wide range of applications can be integrated with the thermocouple and thermal resistance to form an integrated on -site installation structure. It can also be used as a functional module on the detection equipment neutral and instrument panel;
6. Intelligent temperature transmitter can communicate with the upper machine or the handheld and PC to perform remote information management, configuration, variable monitoring, calibration and maintenance function of the transmitter; /> 7. Intelligent temperature transmitter can adjust the display direction of the transmitter according to the actual needs of the user, and display the medium temperature, changes in the sensor value, output current and percentage ratio of the medium measurement of the transmitter.

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