What Is Analog Input Barrier?

The isolated safety barrier for analog input, referred to as the Analog Input Barrier, is a safety device designed specifically for connecting 2-wire, 3-wire, or 4-wire transmitters in hazardous areas. It not only supplies working power to the hazardous area but also transmits the current signal generated by the transmitter from the hazardous side to the safe side with isolation, thereby achieving efficient electrical isolation and explosion protection. This product supports bidirectional transmission of HART signals, ensuring signal stability and safety, and is suitable for a wide range of industrial fields such as chemical, petroleum, metallurgy, natural gas, and power.

Main Features and Customer Benefits of Analog Input Barrier

High Channel Density

Analog Input Barrier with 12.5mm width is more compact than traditional 17.5mm wide products, saving nearly 30% of installation space, making it suitable for high-density installation environments.

Best Performance

The latest products ensure high-quality signal transmission, high-temperature stability, wide power supply range, excellent linearity, and response speed, ensuring reliable operation in various complex industrial environments.

Global Certification

All models are certified by important markets such as China, Europe, Korea, Russia, and the United States, providing users with globally recognized trust guarantees.

SIL2 Functional Safety Level

All models have the SIL2 functional safety level, meeting the strict requirements of industrial safety standards.

Wide Power Supply Range

The product design supports a wide power supply range of 20-35VDC, to meet the stable operation requirements in different power environments.

Reliable Isolation

Using specially designed high-withstand voltage electromagnetic isolation technology, it achieves reliable isolation between power, input, and output, ensuring system safety and stability.

Compatibility with Various Intrinsically Safe Instruments

It can be compatible with various intrinsically safe instruments and signal interfaces in the field, including transmitters, resistance temperature detectors, thermocouples, and valve positioners, providing a wide range of application scenarios.

Ultra-thin Design

The product thickness is only 12.5mm, suitable for compact installation environments, effectively saving installation space and improving the flexibility of equipment layout.

High Conversion Accuracy

Using advanced electromagnetic isolation technology, signals are converted accurately and efficiently, with precision better than 0.05%F.S., ensuring the accuracy and reliability of the data.

HART Communication

Supports the transmission of HART signals, losslessly transmitting data from field devices to higher-level control systems, enhancing the intelligence and management efficiency of the system.

How to Distinguish Independent Power Supply, Loop Power Supply, and Output Loop Power Supply of Analog Input Barrier?

Independent power supply and loop power supply mainly refer to the power supply method of the safety barrier module:

Independent power supply

The safety barrier requires a separate 24V power supply, such as GS8500-EX and other conventional models.

Loop power supply

No separate power supply is required, power and signal are transmitted in the same loop, such as GS8531-EX models.

Output loop power supply usually refers to the output signal being a passive signal, requiring an PLC/DCS system to provide an external power supply.

When choosing, note that the output accuracy of loop power supply might be slightly lower than that of independent power supply, and ensure that the power supply voltage of the safety barrier and the working voltage of the field device are compatible to ensure the normal operation of the equipment.