Unit AIN4-20mA

SKU:U162

Description

AIN4-20mA Unit is a highly capable single-channel 4~20mA current analog measurement unit. Powered by the STM32G030F6 main control chip, it communicates seamlessly with the M5 host through i2c, ensuring efficient and reliable data transmission.

This unit offers flexibility in wiring options, allowing users to switch between internally or externally powered configurations using jumper caps. This versatility enables seamless integration into various systems and setups.

Equipped with an onboard power isolation chip and a built-in op amp circuitry, the AIN4-20mA Unit ensures accurate measurement of external current sensors while maintaining signal accuracy and system safety. This makes it an ideal choice for applications such as power system equipment monitoring, motor control, energy management and automation, and industrial process control.

Features

STM32
I2C communication
Supports 2 or 4-wire sensors, jumper cap switching
Built-in galvanic isolation chip
Support Arduino, UIFlow and other programming platforms

Includes

1* AIN4-20mA Unit
1 × VH3.96-4.0P
1*grove wire（20cm）
3*Jumper caps

Applications

Power system equipment monitoring
Motor control
energy management
Automation and industrial process control

Specification

Resources	Parameters
MCU	STM32G030F6（64 Kbytes of Flash/8 Kbytes of SRAM）
Signal isolation chip	HCNR200
Op amp chip	SGM321YC5/TR
I2C address	0x55
Typical values of IN+ and IN- input impedances	200Ω
Operating temperature	0-40°C
Product Size	562412mm
Package Size	136* 92* 13mm
Product Weight	8.2g
Package Weight	15.6g

Schematic

Jumper cap connection and instructions

If your current sensor already has an external power supply, the jumper cap is connected as shown on the left
If your current sensor does not have an external power supply, connect the jumper cap as shown on the right, and connect the interface of AIN4-20mA Unit to the appropriate external power supply as needed.