1.Fundamental
Thermocouple or thermal resistance is used as a temperature sensor. When it is affected by different temperature, a sensing signal will be obtained through inside measuring loop. Then it is converted, amplified properly and compensated. Hereafter, the voltage
signal will be used in controlling constant current circuit. Finally,a direct current signal of 4~20mADC will be output, which is linear with the measured temperature. |
2.Technical Parameter
a,Input:Pt100 Cu50 Cu100 K,E,J,T,S,R,B
b,Insulation resistance: Insulation resistance between the external terminal and shell should be no less than 50 MΩ
c,Limit Error
d,Output: 2-wire transmits 4~20mA.DC
Power Supply: 24VDC±10%
Load Resistance: 1100Ωmax(power supply below 360V)
Ambient Temperature: -20 to 70℃
Relative Humidity: ≤80% |