HART Isolated Transmission | No More HART Signal Distortion

In the process industry, the increasingly complex electromagnetic environment on-site is becoming an uncertain factor affecting the stable and safe operation of production units. The extensive use of IS barrier and isolated signal conditioner are crucial.

The role of IS barrier and isolated signal conditioner

They utilize reliable electromagnetic isolation and optical isolation technology to provide 4~20mA signal transmission for field instruments, while eliminating interference from field signal loops and grounding networks to the IO acquisition system, ensuring the stable and safe operation of each system.

However, the application of isolation technology may adversely affect HART signals. This can cause issues such as HART signal peak attenuation, waveform distortion, and transmission delays, leading to HART communication data errors, communication failures, and other abnormalities, limiting the convenience and advantages brought by HART intelligent device networking.

Shanghai CHENZHU focuses on providing users with high-performance field signal processing solution products. Our IS barrier and isolated signal conditioner series products not only isolate loop interference signals to provide stable and clean4~20mA signals for control room collection devices but also support high-quality bidirectional transmission of HART signals. This ensures that the field HART intelligent instruments and control room HART acquisition systems can fully utilize the dual advantages of digital+ analog signals.

Recommendations for CHENZHU IS barrier and isolated signal conditioner

IS barrier

• Support HART high-quality isolation and transmission

• Stable performance, high conversion accuracy, low temperature drift

• Support bus power supply and terminal power supply, flexible application

• Complete product specifications, with up to 500+ types of specifications

• Thickness as thin as12.5mm, densely installed to save space

• Strong electromagnetic environment adaptability, EMC compliant with IEC61326-3-1 standards

• CCC/IECEx/ATEX Explosion-proof Certification

• Can be used in Zone2 environments

• Certified by TUV SIL3 certification

• Applicable to G3 corrosive environments

Isolated signal conditioner

• Support HART high-quality isolation and transmission

• Stable performance, high accuracy, low temperature drift

• Support signal amplification, distribution, bridging, isolation, filtering, and anti-interference functions

• Strong electromagnetic environment adaptability, EMC compliant with IEC61326-1 standards

• Rich product specification combinations, compatible with domestic and international DCS/PLC IO interfaces

• CE certification