PT100 and PT1000 is a thermocouple

PT100 / PT1000 works

PT100 / PT1000 is platinum thermal resistance, it is directly proportional to the change of resistance with temperature. PT100 resistance and temperature variation relationship is: when PT100 temperature 0 ℃ its resistance of 100 ohms, at 100 ℃ its resistance value is about 138. 5 ohms. Its industrial principle: when the PT100 at 0 degrees Celsius when his resistance of 100 ohms, its resistance into uniform growth as temperatures rise.

if PT100 temperature sensor is composed of two sensors used to measure the temperature difference, the output signal and the temperature difference between a given continuous function relationship. It is called. Pt100 temperature sensor output signal and a given continuous function relation between temperature ( Usually in the form of linear function) Pt100 temperature sensor, the early production 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. ( 2] Transmitter has electric unit combination instrument series ( DDZ - , the DDZ - Ⅱ type And the DDZ - Ⅲ type S) And miniaturization modular, multi-functional intelligent. The former were without pt100 temperature sensor, after two kind of transmitter can easily with the thermocouple or heat resistance transmitter with a sensor.

/ PT1000 PT100 temperature sensor temperature sensor 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. 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.