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4-20mA to RS485 Modbus RTU Converter - SM626H-DA Data Acquisition from China Suppliers and Factory

Discover the SM626H-DA data acquisition unit, a state-of-the-art micro RTU system developed in China. Built on a robust ARM-based microcontroller, this advanced device integrates high-precision operational amplifiers, interface chips, input and output circuits, and an embedded communication module. As a top choice among suppliers, the SM626H-DA is designed for reliable remote data acquisition, boasting impressive performance and cost-effectiveness, Equipped with MODBUS-RTU communication capabilities via an RS485 interface, the SM626H-DA supports 4-20 mA current output, making it an ideal solution for various industrial applications. Our factory has tailored this data collector for seamless integration into industrial products, ensuring optimal operation across a wide temperature range, resistance to vibration, and strong electromagnetic compatibility, With its versatile interfaces and robust design, the SM626H-DA guarantees stable performance even in challenging environments, providing exceptional quality assurance for your equipment. Choose the SM626H-DA data acquisition unit for your industrial needs and experience the reliability that comes from trusted Chinese suppliers

Product Details

Product Specifications

With two analog acquisition, 16-bit high-precision A/D simultaneous sampling function.
With a 4 ~ 20 mA current output.
With one RS485 interface, dedicated to RS485 communication.
The upper and lower limits and starting point of the analog quantity can be set.
With power-off memory function, parameters do not need to be reset after power off.
The communication transceiver indicator can clearly indicate the working status of the collector.

Product Features

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SM626H-DA collects 2 channels of 4-20mA and converts them into 1 channel of 4-20mA and 1 channel of 485.

Main Parameters

Shell Size	Length 96 mm × width 80 mm × height 25 mm
Working Temperature	-20 ℃ ~ + 80 ℃
Relative Humidity	10% ~ 80%
Power Input Voltage	DC 24V
Input Signal	DC 4 ~ 20mA

Frequently Asked Questions

What are the primary signal conversion capabilities of the SM626H-DA?

The SM626H-DA is designed to collect 2 channels of 4-20mA input signals and convert them into 1 channel of 4-20mA output along with 1 channel of RS485 communication.

Does the device retain its settings during a power outage?

Yes. The device features a power-off memory function, ensuring that all configured parameters are saved and do not need to be reset after power is restored.

What is the sampling accuracy of the analog acquisition?

It features a 16-bit high-precision A/D simultaneous sampling function for two analog acquisitions to ensure highly accurate data processing.

What are the operating temperature and humidity limits for this collector?

The device operates reliably in temperatures ranging from -20 ℃ to +80 ℃, and in relative humidity levels between 10% and 80%.

How can users monitor the real-time working status of the device?

The collector is equipped with an integrated communication transceiver indicator that visually displays the current working and transmission status.