General Description
TK8000-Ex isolated barrier on detection and operating side, provide isolated DC power to transmitter. The 4 ~ 20mA current signal generated from transmitter is conveyed from the danger zone to the separate security 4 ~ 20mA / 1 ~ 5V zone. Another 4 ~ 20mA signal from the regulator (operator) transmits to the actuator after isolation, and limits dangerous energy fleeing from the safe side into a dangerous place.

Main technical parameters
Explosion-proof marker:[Exib]ⅡC
Power Consumption: about 3W(24V power supply, when the output is 20mA)
The Danger Zone Output:4~20mADC actuator supply
The Safety Zone Input:4~20mA DC
TK8000-Ex,TK8000-Ex(V)
Signal:4~20mA,1~5V
Output Load:100~650Ω,250Ω（internal）
Output Accuracy:0.1% F.S
Temperature drift:0.01% F.S/℃
Continuous operating temperature: -20~+60℃
Certified by China National Quality Supervision and Test Center for Explosion Protected  Electrical Products(CQST) (between terminals 9 and 10)
Uo≤30V,Io≤26mA,Co≤0.4μF,Lo≤1mH,Po≤0.78Um=250VDC/AC
Applying to field devices
4 ~ 20mA Dc current signal
Instrument selection