
Two-wire 4-20mA working method, supporting quantum migration.
The full range of three points or two points of PT100 calibration.
Industrial temperature range -40 °C ~ 85 °C, import voltage Benchmark, circuit board temperature drift & lt; 35 ppm.
The enhanced protection circuit design has as many as 10 protective devices for the entire board. It has a variety of protections such as Overflow, overpressure, and reverse connection, and is more reassuring to use on the spot.
The wide power supply 5 ~ 30V power supply, the minimum 5V power supply can output 4 ~ 20mA current ring, can meet the special use of similar 10 ~ 12V power supply.
The two-way constant current source excitation effectively eliminates the line resistance.
Full digital calibration, convenient and fast.


Power voltage: 5 ~ 30 VDC, recommended 24 VDC.
Incentives for constant current: two-way constant current source 0.2 mA.
Working environment: temperature -40 ~ 85 °C, humidity & lt; 85 %, dry and non-perishable environment.
Shape size: length(27.5 mm) * width(19 mm) * height(4.5 mm).
Load resistance:(VCC-5) / 20mA
Current output resolution: approximately 1.2 uA
Temperature drift coefficient: & lt; 35 ppm / °C

Shape and wiring

Outline drawing

Interface specification
L+: positive external power supply; L-: negative external power supply; TS: circuit board debugging interface
IN+: Sensor power supply positive; IN-: Sensor power supply negative; COM: Sensor common end

Note: 1. The normal power supply range of PCB is 5-30VDC, beyond which the circuit can not work properly.

In order to facilitate the debugging and use of customers, our company provides professional debugging tools and debugging software. Professional debugging tools have RS232 interface to connect the computer calibration setup software. You can also work independently without a computer. It is convenient for customers to use and improve production efficiency.