With technological innovation at its core, we provide customers with secure and reliable solutions.

View more →

The product is designed and manufactured in strict accordance with the latest standards GB/T 28471.1-2012, GB/T 28472.2-2012, and GB/T 28473.1-2012, and has obtained EU CE certification as well as ISO 9001 quality management system certification.

View more →
scroll down

YIEN PRODUCT SERIES

Industrial automation signal isolation and safety protection product supplier

Signal Isolator

The isolator is a high-end product line independently developed by our company. It features a high-definition LCD display that shows the current analog input signal value or the current temperature reading, and allows users to directly adjust the input range via buttons, making it simple and convenient to use.

Industrial automation signal isolation and safety protection product supplier

Isolated Safety Barrier

The product features an intelligent circuit that enables fully automated parameter configuration via the USB port. It includes indicator lights for input‑line disconnection and overrange fault alerts. The input–output stages employ high‑performance optocoupler isolation, with an isolation voltage rating of up to 3,500 V. All models utilize high‑efficiency planar transformers, ensuring highly accurate and linear output performance. With triple‑end isolation and both software and hardware filtering, the device delivers exceptional immunity to electromagnetic interference. At just 12.7 mm thick, it is suitable for compact, high‑density mounting.

Industrial automation signal isolation and safety protection product supplier

Surge Protector

The RS series Surge Protector is designed for surge protection of signal systems in the field of automated control, providing protection for signals from various instruments such as sensors, transmitters, flow meters, solenoid valves, valve positioners, resistance thermometers, thermocouples, and detection and analysis devices, as well as for the A1, A0, D1, D0, TI, PI, and intelligent I/O interfaces and power supplies of DCS, PLC, and SCADA control systems. It is widely used in industries such as petrochemicals, natural gas, environmental protection, and new energy.

Industrial automation signal isolation and safety protection product supplier

Temperature Transmitter

The Temperature Transmitter accepts thermocouple and resistance temperature detector signals, isolates and converts them into current or voltage outputs. This product is powered by a two-wire loop and offers optional HART communication. It features built-in online fault self-diagnosis and allows configuration of signal type, signal range, and other parameters via PC configuration software.

Industrial automation signal isolation and safety protection product supplier

Data Acquisition Module

The industrial‑grade isolated temperature acquisition module complies with the standard MODBUS‑RTU communication protocol. Internally, it features a 24‑bit ADC and an advanced intelligent processor, supporting a wide range of configuration software and PLC systems. It is suitable for various temperature‑acquisition applications and accommodates multiple types of temperature sensors. The device operates on a DC input voltage of 9–32 V, mounts on a standard DIN rail, and incorporates opto‑isolation between the communication interface unit and the temperature‑acquisition unit. Additionally, the communication interface is designed to provide protection against electrostatic discharge and surge voltages.

Industrial automation signal isolation and safety protection product supplier

AC Voltage/Current Transmitter

AC current/voltage transmitters are used to isolate and convert AC signals from current and voltage transformers into standard process current or voltage signals, which are then sent to control rooms, PLCs, DCS systems, and display instruments. Internally, they employ highly efficient magnetic‑electrical isolation technology, ensuring complete electrical isolation between input and output and providing strong immunity to electromagnetic interference. They feature high accuracy, excellent linearity, and extremely low temperature drift. Two mounting options are available: DIN rail mounting and panel‑mounting with flat-head screws.

APPLICATION FIELD

Metallurgy and Petrochemicals

Metallurgy and Petrochemicals

Rubber machinery

Rubber machinery

Petrochemicals

Petrochemicals

Glass industry

Glass industry

Aerospace

Aerospace

Energy and Environmental Protection

Energy and Environmental Protection

  Henan Yien Automation Equipment Co., Ltd. was founded in June 2020 and is located in Jiaozuo City, Henan Province. It is a modern enterprise dedicated to industrial signal interface instruments such as Signal Isolators, Temperature Transmitters, Isolated Safety Barriers, and Surge Protectors.

  As a pioneer in the industry, Yien Electric has consistently focused on the design, R&D, and manufacturing of Signal Isolators, Isolated Safety Barriers, and Surge Protectors. Yien’s products are widely used in sectors such as biopharmaceuticals, aerospace, metallurgy and petrochemicals, the glass industry, rubber and plastics machinery, petrochemicals, the automotive industry, shipbuilding, rail transit, smart heating, energy and environmental protection, and water treatment. The outstanding quality of our G-series Signal Isolators and Safety Barriers has earned the unanimous trust and recognition of partners both at home and abroad.

  Our products incorporate internationally advanced PCB‑based planar transformer technology, achieving solid isolation between coil windings. This innovative approach enhances electromagnetic interference immunity and ensures consistent signal coupling. The products are designed and manufactured in strict compliance with the new standards GB/T 28471.1‑2012, GB/T 28472.2‑2012, and GB/T 28473.1‑2012, and have obtained EU CE certification as well as ISO 9001 quality management system certification.

  We leverage high-quality products and comprehensive solutions, building on our technological and service strengths. Through continuous innovation in technology, products, business practices, and management models, we consistently enhance our core competitiveness, delivering safe, reliable, and cost‑effective solutions to our customers.

About Us
2020 +

Date of establishment of the enterprise

215 Ten thousand

Registered capital of the enterprise

2500 square meter

Enterprise land area

50 Tens of thousands+

Annual production capacity of the product

With technological innovation at its core, we provide customers with secure and reliable solutions.

2017 year

The company was founded in 2017.

4000 square meter

Factory and office space totaling 4,000 square meters.

80 +

The company currently has over 80 employees.

30 +

Has received more than 30 national honors.

Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Henan Yien Automation Equipment Co., Ltd.
Quality Management System Certification Certificate
Quality Management System Certification Certificate
Environmental Management Certification Certificate
Environmental Management Certification Certificate
SIL certification
SIL certification
Explosion-proof Certificate
Explosion-proof Certificate
CE certification
CE certification
CCC Certificate
CCC Certificate

Customized Service

Customized flat transformers with high isolation strength, superior consistency, and enhanced anti-interference capability

View more →

Selected international brands

Imported from renowned brands, ensuring consistent product performance. DEGSON Goshon Electronics, using environmentally friendly and flame-retardant materials.

View more →

The product has strong adaptability.

There are DC 24V and 220V AC wide-range power supply products available for users to choose from, and these products have better adaptability.

View more →

Intelligent products

The intelligent product enables the reading and modification of product parameters through Bluetooth technology in the mobile phone APP.

View more →

Henan Yien Automation Equipment Co., Ltd.

Causes of Interference and Solutions

Implementing monitoring and control during the production process requires a variety of instruments, control systems, and actuators. Signal transmission among these components encompasses both very weak signals—on the order of millivolts or milliamperes—and high‑level signals reaching tens of volts, or even thousands of volts and hundreds of amperes.

2025-05-23

Applications of Analog Input Isolators

Yien offers a wide range of analog input isolators, categorized by the number of input channels into single‑channel and dual‑channel models, as well as versions that provide one‑input, two‑output signal distribution functionality.

2025-05-24

20250603 Resistance Thermometer Temperature Measurement

A resistance thermometer (such as a Pt100) is a temperature sensor that converts temperature into an electrical resistance by exploiting the principle that its resistance varies with temperature.

2025-06-03

Thermocouple temperature measurement

When two conductors of different materials, A and B, are welded together, a thermoelectric potential is generated at the cold junction (also known as the reference junction) whenever there is a temperature difference between the junction (the hot junction) and the other end of the conductors.

2025-06-05