Detailed Product Description
The Application of Thermcouple
It is usually used with display-meter, recording -meter and computer etc., outputting 4-20Ma, to directly measure temperature of liquid, vapor, gas medium and solid surface ranging from 0 to 1600oC during various production processes.
The Features
1.Two wire system output of 4~20Ma, strong anti-interference performance.
2.Save cost of compensation wire and installation of temperature transmitter.
3.Wide measuring range.
4.Automatic compensation of temperature at cold end, non-linearity corrceting circuit.
The Working Principle
Hydroelectric potential(resistance) of thermocouple(thermal resistance) will bring the unbalanced current signal through the electrical bridge, the signal will be amplified to 4~20 mA D.C. signal and transfer to the instrument, the instrument will display the relevant temperature.
The Main Technical Parameters
1.Standard: IEC 584, IEC 1515, IEC 751, JB/T 7391-94.
2.Output Signal: 4~20Ma, loading resistance, 250Ω. transmitting wire resistance:100Ω.
3.Output Way: Two-wire.
4.Tolerance Class: 0.1,0.2,0.5.
5.Power Supply: 24v.DC±10%.
6.Protection Class: IP65.
7.Insulation Resistance: Insulation resistance between instrument output connecting terminal and its case should be no less than 50Ω.
