The LYR series thermocouple temperature transmitter converts the input thermocouple signal through linear correction isolation into the standard DC current signal or DC voltage signal required by the user, and the power supply, input, and output are isolated from each other.

1、 The function and working principle of LYR series thermocouple signal isolator:

The working principle of thermocouple signal isolators is based on the thermoelectric effect, which utilizes the electromotive force generated by two different materials of conductors or semiconductors under temperature. The magnitude of this electromotive force is related to the material of the conductor or semiconductor and the temperature difference between them. Thermocouple temperature isolation transmitters utilize this principle to process and convert the electrical signals output by on-site thermocouples to meet the needs of industrial sites. ‌

IIMain technical indicators:

1. Output load: ≤ 550 Ω at 4-20mA, voltage type ≥ 250K Ω

2. Basic error: ± 0.5% FS3, power supply: 24VDC ± 10%

4. Temperature drift: ≤ 0.01% FS/℃

5. Insulation resistance: ≥ 100MQ/500VDC between power supply input output

6. Insulation strength: 1000VAC/min

7. Power consumption: One in one out<1.4W, one in two out<2W, two in two out<2.8W

8. Working environment: ambient temperature 0~50 ℃

Relative humidity ≤ 85% RH (avoid strong corrosive gases) 9. Installation method: Rear panel clamp (DIN35 track)