CZ2031 AI Loop Powered Signal Isolator

CZ2031 AI Loop Powered Signal Isolator range signal conditioners are electrical devices, which are connected between the industrial field instrument and the control room. They effectively solve the field interference of industrial automation control systems and ensure stable and reliable operation of the system through reliable galvanic isolation among the power supply, input, and output. The product model is rich, and basically covers various signal

isolation, conversion, distribution and other functional requirements in the automatic control system.


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  • 1 channel input/output
  • 24V DC loop powered
  • Suitable for analog input and analog output
  • Support HART communication
  • Easy installation–Use standard 35mm DIN rails


  • Signal change & process value scaling.
  • Filtration of noise
  • Protect against EMC
  • Crosstalk elimination
  • Electrostatic filtration
  • Ground loops elimination



Module CZ3031
Input Current 4~20mA (HART)
Input Voltage Drop Ud≤6V
Input Distribution Voltage AI: Uo≥Ue-RL×0.02-6
Output Current 4~20mA (HART)
Load Resistance AI: RL≥250Ω(HART)
AO: RL≤(Ui-6)/ 0.02
Loop Supply Voltage(Ue) 20~30V DC
Power Reverse Protection Support
Power Dissipation 0.1W
Transmission Accuracy AI: 0.4%F.S
AO: 0.2%F.S
Temperature Drift 0.01%F.S./℃
Response Time(0~90%) ≤0.5 ms
Dielectric Strength 1500VAC; 1 min
Insulation Resistance ≥100MΩ
EMC Standard IEC 61326-1
Ambient Temperature 20℃~60℃
Storage Temperature -40℃~80℃
Relative Humidity 10%~90%
Environmental requirements The air should not contain any medium corrupting the coat of chrome, nickel and silver. Moreover, violent quiver and impact or any cause of electromagnetic induction (such as big current or spark, etc.) must be avoided when using
Suitable Field Apparatus AI: 2-wire transmitter
AO: 2-wire valve positioner, Electrical converter
Flammability Rating UL94/V0
Weight Approx.100g
Dimensions Depth: 114.5mm  Height:99.0mm  Width: 17.5mm
Material PA
Degree of Protection IP 20


Note: It is not allowed to use HHC (HART hand-held communicator) in input and output at the same time.