Wholesale 4-20mA to 485 ,analog converter , modbus protocol , SM626H-DA Manufacturer, Supplier

SM626H-DA data acquisition unit is a micro RTU system, which is based on the advanced ARM-based microcontroller. It is composed of high-precision operational amplifier, interface chip, input and output circuits, and embedded communication module. The RTU terminal for remote data acquisition has the characteristics of stable performance and high cost performance.
The SM626H-DA data collector communicates with equipment with MODBUS-RTU communication function through RS485 interface and supports 4 ~ 20 mA current output.
As SM626H-DA data collector is specially designed for industrial product integration, it adopts special design in temperature range, vibration, electromagnetic compatibility and interface diversity, which ensures stable operation in harsh environment and provides high quality assurance for your equipment.

Product Description

Product Specifications
  • Two analog acquisition channels with 16-bit high-precision A/D simultaneous sampling.
  • Integrated 4 ~ 20 mA current output capability.
  • Dedicated RS485 interface for professional communication.
  • Configurable upper/lower limits and starting points for analog quantities.
  • Power-off memory function ensures parameters are retained without resetting.
  • Communication transceiver indicator for real-time working status monitoring.
Product Features
● SM626H-DA effectively collects 2 channels of 4-20mA and converts them into 1 channel of 4-20mA and 1 channel of 485.
Main Parameters
Shell Size: 96 mm × 80 mm × 25 mm
Working Temp: -20 ℃ ~ + 80 ℃
Relative Humidity: 10% ~ 80%
Input Voltage: DC 24V
Input Signal: DC 4 ~ 20mA
Resource Downloads
File SM626H-DA.exe Icon
File SM626H-DA User Manual.pdf Icon
Communication Applications
Application diagram of SM626H-DA and temperature transmitter PT100
Service & Warranty

Our commitment to quality ensures that all products come with a three-year warranty. We provide comprehensive technical support to ensure your operations run smoothly.

Frequently Asked Questions
Are you a factory or trading company?
We are a high-tech enterprise factory integrating R&D, production, and sales, equipped with a complete ERP system to meet all procurement needs.
What is the expected delivery time?
Goods are typically dispatched within three working days once the payment is confirmed.
Is there a Minimum Order Quantity (MOQ)?
We support a minimum order of just one piece under normal circumstances to accommodate various project scales.
Do you offer OEM or customization services?
Yes, we provide OEM services including logo printing and customized designs based on your specific requirements.
What are the available payment methods?
We require 100% payment prior to shipping, which can be conveniently processed via telegraphic transfer.
What kind of post-purchase support is provided?
All products include a three-year warranty. Our technical team is available to assist with any issues encountered during installation or use.

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