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

The SM626H-A-0 data acquisition unit is a cutting-edge micro RTU system designed for industrial applications. It leverages an advanced ARM microcontroller and features high-precision operational amplifiers, interface chips, watchdog circuits, and robust input and output circuits, complemented by an embedded communication module. This RTU terminal excels in remote data acquisition, delivering superior performance and high cost-effectiveness.
Specifically engineered for seamless integration into industrial products, the SM626H-A-0 is built to withstand extreme conditions, with enhancements for temperature range, vibration resistance, electromagnetic compatibility, and interface diversity. This ensures reliable operation in harsh environments, providing excellent quality assurance for your equipment. As a leading product from a trusted Chinese supplier, our SM626H-A all-in-one data collector offers state-of-the-art data acquisition capabilities alongside GPRS and CDMA communication technologies, making it an ideal choice for factories and businesses seeking reliable and advanced solutions.

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 long × 105 mm wide × 33 mm high.

Working temperature: -20 ℃ ~ + 80 ℃.

Storage temperature: -25 ℃ ~ + 80 ℃.

Power input voltage: DC 9 ~ 24V.

Two switching values are input by optical non quarantine dry contact.

Protection class: IP65.

Frequently Asked Questions

Q: What is the acquisition precision of the SM626H-A-0?

A: It features four-way analog acquisition with a 16-bit high-precision A/D simultaneous sampling function for accurate data collection.

Q: Can the module power external sensors directly?

A: Yes, it provides a DC 24V output with 20 mA drive capability, specifically dedicated to the power supply of two-wire sensors.

Q: How are the configuration parameters set?

A: Parameters can be easily configured via the built-in USB interface, allowing you to set parameter types, ranges, starting points, and pulse bottoms.

Q: Does the device lose its settings when powered off?

A: No, the module features a power-off memory function. All operating parameters are saved and do not need to be reset after a power off.

Q: What are the temperature limits and protection rating of the shell?

A: The device operates in temperatures from -20 ℃ to +80 ℃ and features an IP65 protection class rating, making it highly durable for industrial environments.