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

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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.

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Product Description

Product Core Features

SM626H-A-0: 4-Channel 4-20mA Collection & 1-Channel 485 Output

Technical Specifications

Four-way analog acquisition with 16-bit high-precision A/D simultaneous sampling.
Two-channel pulse counting and two-channel switching value sampling function.
Integrated DC 24V output (20 mA) for powering two-wire sensors directly.
Dedicated RS485 instrument communication interface for industrial networking.
USB interface for efficient local parameter setting and configuration.
Power-off memory ensures operating parameters are saved without resets.

Physical & Environmental Parameters

Installation: 83 mm × 94 mm
Shell Size: 123 × 105 × 33 mm
Operating Temp: -20 ℃ ~ +80 ℃
Input Voltage: DC 9 ~ 24V
Protection: IP65 Rating
Switching Input: Optical non-quarantine dry contact

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?
A: The device operates in temperatures from -20 ℃ to +80 ℃ and features an IP65 protection class rating, making it suitable for industrial environments.
Q: What indicators are available for monitoring?
A: The device includes communication transceiver and module status indicators to clearly show the working status of the collector.

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