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HART Smart Converter SM181-01-A - China Suppliers Factory for 4-20mA to RS485 Data Transmission

The SM181-01-A HART smart converter is a cutting-edge solution developed in China, utilizing advanced ARM microprocessor technology and a HART protocol modem chip. Based on extensive practical experience, this product meets the rigorous demands of industrial applications, ensuring high reliability and stability. The intelligent converter features a standard RS485 interface, enabling seamless data transmission with HART protocol intelligent instruments. It can also convert data to MODBUS RTU protocol for enhanced accessibility and real-time transmission.
Utilizing the Bell202 Frequency Shift Keying (FSK) standard, the HART protocol allows for the superimposition of a modulated digital signal onto a 4 to 20 mA analog signal. This innovative design enables bidirectional data communication without interfering with the existing analog signal. The SM181-01-A HART intelligent converter acts as a reliable factory-grade solution for modulating and demodulating both digital and analog signals, making it an essential choice for suppliers seeking quality industrial devices.

Product Details

Product Specifications

Equipped with standard RS485 communication interface for parameter configuration, communication baud rate and parity check. It is independent of the 1200 communication speed on the HART bus, thus improving the operation speed of the whole system.

Adopt industrial universal module shell, which is convenient for installation and commissioning.

It is equipped with special configuration software, which can configure the parameters of SM181-01-A HART intelligent converter, and can communicate with HART protocol intelligent instrument through the intelligent converter.

Support for standard MODBUS_RTU protocols.

Support a variety of special HART protocol intelligent instruments, and can customize the instructions for reading special HART instruments.

It has the functions of analog quantity acquisition and high-precision A/D simultaneous sampling.

The range and zero point of collected data can be configured.

With power-off memory function, parameters do not need to be reset after power off.

Product Features

SM181-01-A simultaneously collects HART and 4-20mA output 485.

Main Parameters

Power Input Voltage

DC 12 ~ 24 V

Ripple ≤ 200 mA, Current 100mA

Shell Size

96 × 80 × 25 mm

Length × Width × Height

Working Temperature

-20 ℃ ~ + 80 ℃

Relative Humidity

10% ~ 80%

Frequently Asked Questions

What communication protocols does the SM181-01-A support?

The SM181-01-A HART intelligent converter supports standard MODBUS_RTU protocols, standard RS485 communication, and various special HART protocol intelligent instruments.

Does the converter retain its configuration settings after a power failure?

Yes, the device features a built-in power-off memory function. Once configured, parameters do not need to be reset even after the power is turned off.

What are the power supply requirements for the SM181-01-A?

The input voltage requirement is DC 12 ~ 24 V, with the power supply ripple not exceeding 200 mA, and the working current is 100 mA.

Can the range and zero point of collected data be adjusted?

Yes, the range and zero point of the collected data can be fully configured using the special configuration software provided with the device.

What is the physical size and environmental limit of the device?

The physical shell size is 96 mm (L) × 80 mm (W) × 25 mm (H). It is designed to operate in temperatures ranging from -20 ℃ to + 80 ℃, and a relative humidity of 10% to 80%.