THIIM AITA-A3C Loop Isolator

THIIM AITA-A3C Loop Isolator provides precise galvanic isolation between input, output, and power supply circuits in 4–20 mA process loops. It eliminates ground loops and electrical noise, ensuring accurate, stable, and interference-free transmission of analog signals in industrial automation, process control, and instrumentation systems.

🔧 Technical Highlights:

• Function: Electrically isolates analog input, output, and supply circuits to prevent ground loop errors and signal interference.
• Input Signal: 4–20 mA DC (active or passive loop configurable).
• Output Signal: 4–20 mA DC isolated re-transmission.
• Isolation Voltage: 2.5 kV AC (input/output/power isolation).
• Accuracy: <±0.1% full-scale typical; excellent linearity and repeatability.
• Response Time: <10 ms for fast signal tracking.
• Power Supply: 24 V DC nominal (other options available).
• Connection: Screw terminals for secure field wiring.
• Mounting: DIN rail 35 mm housing, compact 12.5 mm width.
• Compliance: CE and RoHS certified; designed to IEC/EN 61326 for EMC and low-voltage standards.

✅ Benefits:

• Ensures accurate, noise-free 4–20 mA signal transmission.
• Prevents ground loops and voltage potential differences.
• Improves safety and signal reliability in process systems.
• Compact DIN rail design optimises control panel space.
• Compatible with PLCs, DCS, and industrial transmitters.

🚀 Applications:

• Industrial automation and process instrumentation loops.
• PLC and DCS analog input/output isolation.
• Power plant, chemical, and water treatment systems.
• Sensor and transducer signal isolation in hazardous zones.
• Measurement and control systems requiring galvanic separation.

The THIIM AITA-A3C loop isolator provides robust galvanic isolation for 4–20 mA process signals, improving accuracy, reliability, and protection in demanding industrial environments.

FAQs

• Q: Why is a loop isolator needed in 4–20 mA systems?
  A: It prevents ground loops and interference caused by different earth potentials between devices, ensuring stable and accurate signal transmission.
• Q: Can the THIIM AITA-A3C be used with PLC analog inputs?
  A: Yes. It is ideal for isolating field transmitters from PLC or DCS inputs, protecting control electronics from voltage spikes and noise.