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High-Performance 4-20mA to RS485 Multivariable Converter - SM626H-A-0 from China Suppliers and Factory

The SM626H-A-0 data acquisition unit is a state-of-the-art micro RTU system designed by top China suppliers. Built on an advanced ARM microcontroller architecture, this unit features high-precision operational amplifiers, an efficient interface chip, a reliable watchdog circuit, and robust input/output circuits, all complemented by an embedded communication module. As a leading product from a renowned factory, the SM626H-A-0 RTU terminal excels in remote data acquisition, ensuring both stable performance and exceptional cost efficiency.
Engineered specifically for industrial product integration, the SM626H-A-0 data collector is optimized for challenging environments, showcasing enhanced resilience against temperature fluctuations, vibrations, and electromagnetic interference. With its diverse interfaces and dependable operation, this high-tech solution provides unparalleled quality assurance for your equipment, making it a preferred choice among industry professionals.

Product Details

Product Specifications

With four-way analog acquisition, 16-bit high-precision A/D simultaneous sampling function.
It has two-channel pulse counting function and two-channel switching value sampling function.
With a DC 24V output, 20 mA drive capability (dedicated to the power supply of two-wire sensors).
It has one RS485 instrument communication interface, which is dedicated to RS485 instrument communication.
USB interface is used to set parameters.
The parameter type, range, starting point and pulse bottom of the collected data can be configured.
Parameters and real-time data can be queried locally, and all operating parameters can be set.
With power-off memory function, parameters do not need to be reset after power off.
The communication transceiver and module status indicator can clearly indicate the working attitude of the collector.

Product Features

SM626H-A-0 collects 4 channels of 4-20mA and outputs 1 channel of 485.

Main Parameters

Installation Dimension

Length 83 mm × Width 94 mm

Shell Size

123 mm × 105 mm × 33 mm

Working Temperature

-20 ℃ ~ + 80 ℃

Storage Temperature

-25 ℃ ~ + 80 ℃

Power Input Voltage

DC 9 ~ 24V

Switching Values Input

Two inputs by optical non quarantine dry contact

Protection Class

IP65

Frequently Asked Questions

What are the dimensions and shell size of the SM626H-A-0?

The installation dimensions are 83 mm in length × 94 mm in width. The external shell size measures 123 mm long × 105 mm wide × 33 mm high.

What is the operating temperature range for the device?

The device has a working temperature range of -20 ℃ to +80 ℃, and a storage temperature range of -25 ℃ to +80 ℃.

Does the device retain its configured settings after a power loss?

Yes, the device is equipped with a power-off memory function, which ensures that all parameters do not need to be reset after a power interruption.

What are the power input requirements and sensor drive capabilities?

The required power input voltage is DC 9 ~ 24V. Additionally, it offers a DC 24V output with a 20 mA drive capability, which is specifically dedicated to powering two-wire sensors.

What protection rating does the SM626H-A-0 shell have?

The device shell meets the IP65 protection class standard, offering reliable defense against dust and water ingress.

How are the parameters and real-time data managed?

Parameters can be set using the built-in USB interface. Real-time data and operating parameters can also be queried locally, allowing configuration of parameter types, ranges, starting points, and pulse bottoms.