Pressure thermocouple sensor is basic common sense

Single thermocouple sensor, transmitter, pressure is usually measured fluid ( Such as: liquid, gas, melt) Pressure. The pressure unit commonly used are: Pa, KPa, MPa, bar, Kgcm2, etc. Each pressure thermocouple sensor and transmitter has certain pressure measuring range, can measure the maximum pressure value is called: range.

2, pressure of the thermocouple sensor output signal is usually mV ( Millivolts) As the unit of voltage signal. The signal output and the size of the supply pressure of thermocouple sensor power supply voltage size has a direct relationship. Most of the thermocouple sensor output is 1 - - 2mVV。 , that is, when the measured medium pressure reaches maximum nominal pressure of thermocouple sensor, if the power of the supply of thermocouple sensor is 1 v, the output signal is 1 - - 2mV。 Similarly, if the power of the supply of thermocouple sensor is 10 v, the output signal is 10 - - - 20mV。

3, pressure thermocouple sensor output signal of the commonly used are: 4 - - - 20mA、0- - - 20mA、0- - - 5 v, 1 - - - 5 v, 0。 5 - - - 4. 0 - 5 v - - 10 v, RS485 and RS232. The signals are standard, only the size of the output and the measured medium is proportional to the pressure. The rated voltage range, output will not change along with the change of power supply. Commonly used frequency converter, PLC, control, display instrument, such as the signal receiving module can receive these standard signal.

4, in order to feel the pressure of the measured medium, thermocouple sensors, pressure transmitter has thread or the flange used to connect to a pipe or container.

5, range, signal, connecting thread, is buying pressure thermocouple sensor and transmitter must clear before the three main factors. Well after a thermocouple sensor, these three elements cannot be changed again.

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