4-20mA to 5V Converter for Arduino Industrial Sensor Interface Board

This is an Arduino Industrial Sensor Interface Board 4-20mA to 5V Converter.

This module allows you to interface Industrial Sensors and Devices with a 4-20mA output with your Arduino/Raspberry Pi or any other microcontroller. It has always been difficult and complex to interface these devices with Arduino/Raspberry Pi because of the external circuits and tuning needed to convert the current signal to an analogue voltage. This board does that, converting the 4-20mA (or 0-20ma) current signal to an analogue output voltage of 0-5V, 0-3.3V, or 0-10V that may be connected straight to the microcontroller’s ADC port. The onboard screw terminal connectors make connections quick and straightforward!

Note : HW-685 on board working is same .

Application:

• This Module is used to convert the current signal to voltage Output.

Instructions for use:

1. The module according to the definition of wiring, power supply voltage 7-36V (if the output to 10V, the supply voltage must be greater than 12V).
2. After power-up, the D2 indicator should be on, otherwise check the line connection. Board with reverse protection, the reverse does not burn.
3. When the current input is the minimum (0mA or 4mA), adjust the ZERO potentiometer so that the VOUT output is the minimum (0.0V or other voltage).
4. When the current input is at maximum (20mA), adjust the SPAN potentiometer so that the VOUT output is the maximum (3.3V or 5V or 10V, the output can be as low as 2.5V when the input is 4-20ma).
5. According to your needs, through the jumper cap to select the appropriate range:

Jumper Settings for Output Voltage Range Input Signal: 4-20mA

• 1.0-2.5V: J1 1,2 pin are short circuit connected; 3, 4 pin are short circuit connected
• 2.0-3.3V: J1 1,2 pin are disconnected; 3, 4 pin are disconnected
• 3.0-5V: J1 1,2 pin are short circuit connected; 3, 4 pin are short circuit connected
• 4.0-10V: J1 1,2 pin are short circuit connected; 3, 4 pin are disconnected

Jumper Settings for Output Voltage Range Input Signal: 0-20mA:

• 1.0-3.3V: J1 1,2 pin are short circuit connected; 3, 4 pin are short circuit connected
• 2.0-5V: J1 1,2 pin are short circuit connected; 3, 4 pin are short circuit connected
• 3.0-10V: J1 1,2 pin are short circuit connected; 3, 4 pin are disconnected

Features:

• Features include a wide range of supply voltage and multiple voltage ranges for the output.
• Adjustable zero and range
• Excellent linearity, high stability, and industrial grade
• High accuracy colour ring resistance, little temperature drift, high power, and high precision current signal sampling resistor