LYA-R Thermocouple Isolation Safety Barrier

The LYA-R series thermocouple isolation safety barrier primarily serves to receive thermocouple signals from hazardous areas on-site, isolates and converts them, and then transmits the signals to control systems or other combined instruments located in safe areas. It prevents hazardous signals from entering the hazardous environment via the intrinsically safe terminals, while also ensuring electrical, input, and output circuits remain completely isolated from one another.

Key words:

Thermocouple isolation signal safety barrier equipment electrical output system

Classification:

Product Description

Product Overview Product overview

 
The LYA-R series thermocouple isolation safety barrier primarily serves to receive resistance temperature detector (RTD) signals from hazardous areas on-site. After isolating and converting these signals, it transmits them to the control system or other combined instruments located in safe zones. The device ensures that hazardous signals cannot propagate back into the hazardous area from its intrinsically safe terminals, while also providing electrical isolation among its power supply, input, and output sections.

Performance metrics TECHNICAL PARAMETERS

Supply voltage: 18–32 VDC

Current consumption: (with 24V supply and 20mA output) ≤100mA

Power Protection: Reverse Polarity Protection

On-site side input: 0–20mA, 4–20mA, 0–5V, 0–10V

Input impedance: Current input, ≤50Ω; Voltage input, >200kΩ

Distribution voltage: Open circuit, ≤28V; at 20mA, ≥15.5V

Distribution current: Normal, ≤25mA; Short circuit, ≤35mA. Other input types or specification requirements will be agreed upon at the time of order.

System-side output: (0–20mA, 4–20mA, 0–5V, 0–10V)

Load resistance: Current output, 0–400Ω; voltage output >10kΩ. Other output types or specifications should be agreed upon at the time of order.

Output accuracy: 0.1% F.S.

Temperature drift: 0.01% F.S./°C

Response time: 0.1s to reach 90% of the final value

Electromagnetic Compatibility: Complies with IEC 61326-1, IEC 61326-3-1

Operating environment temperature: -20°C to +60°C

Insulation strength: Field side – system side, ≥1500 VAC; Power supply – system side, ≥500 VAC

Insulation resistance: Field side – System side, ≥100 MΩ; Power supply – System side, ≥100 MΩ

Product weight: approximately 150g

External Dimensions and Wiring Diagram APPEARANCE OF SIZE

 

                    

 
 

                 

 

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