Temperature transmitter is a kind of converting temperature variables can transmit the standardization of the output signal of the instrument.
It is mainly used for industrial process measurement and control of the temperature parameters.
Temperature transmitter is the temperature sensor
signal into current signal, connected to the secondary instrument, which showed the corresponding temperature.
With sensor transmitter usually consists of two parts: sensor and signal converters.
The sensor is mainly the thermocouple or heat resistance;
Signal converter mainly consists of measurement unit, signal processing and conversion unit (
Due to industrial heat resistance and thermocouple indexing table is standardized, so signal converter as a separate product is called the transmitter)
And some transmitter increases the display unit, some also have the function of field bus.
Transmitter if is composed of two sensors used to measure the temperature difference, the output signal and the temperature difference between a given continuous function relationship.
So called temperature transmitter.
Transmitter output signal with a given continuous function relation between temperature (
Usually in the form of linear function)
, the early production of the transmitter of the output signal and the temperature sensor resistance (
Or voltage value)
A linear function relationship between.
The output signal of standardization is 0 ma ~ 10 ma ma and 4 ~ 20 ma (
Or 1 v to 5 v)
The dc signal.
Do not rule out other standardized output signal with special provisions.
Temperature transmitter according to the power supply connection mode can be divided into two wire system and four wire system.
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