1、 The function and working principle of switch signal isolator:

The function of a switch isolator is to isolate and convert signals. In a multi circuit control system, in order to ensure the safety and stability of each circuit, it is necessary to separate them to avoid mutual influence between circuits. Isolators achieve this separation, allowing each circuit to be independently controlled and monitored, avoiding confusion and danger. In addition, switch quantity isolators can also achieve signal conversion, transforming signals into appropriate forms to meet the needs of other circuits.

The working principle of a switch isolator is to separate the input signal and generate a signal equivalent to the input voltage at the output. In an electrical isolator, a relay is responsible for controlling the switch between the input and output terminals. The relay contains two coils inside, which can achieve electrical isolation between the input and output terminals. In optical isolators, optocouplers or solid-state relays are used to isolate the circuit between the input and output terminals, thereby ensuring the stability and safety of the circuit.

2、 Application of LYK series switch signal isolator:

In industrial production, switch signal isolators are widely used. For example, in the descaling system of a steel plant, switch signal isolators are used to protect the normal and stable operation of related systems. By manually adjusting the input and output in the same or opposite direction, as well as conducting short circuit or open circuit detection, the safety and stability of the system are ensured. In addition, switch signal isolators can also be applied to scenarios that require high load capacity, such as amplifying analog signals during long-distance transmission by installing isolators, effectively improving signal load capacity and ensuring accurate and reliable transmission of signals. This application scenario is widely present in industrial sites, especially in environments where strong electromagnetic radiation sources such as frequency converters and motor equipment are used. Switching signal isolators can ensure the stability and reliability of data transmission and solve signal distortion problems.

3、 Technical parameters of thermocouple isolation safety barrier:

1. Input type:
Switch or NAMUR proximity switch in accordance with DIN19234, open circuit voltage: 8V ± 0.5V, switch threshold: 1.5mA
Short circuit current: about 8mA

2. Output type:
a)， Relay normally closed (normally open) output contact physical properties: 24VDC, 2A load type: resistive load
Response time: ≤ 20ms
b)， External power supply voltage of transistor ≤ 40V; driving output current ≤ 40mA collector output high level: VCC; Low level: ≤ 2.5V emitter output High level: VCC-2.5V; Low level: ≤ 0.5V

3. Basic error: ± 0.2% FS

4. Power supply: 24VDC ± 10%

5. Temperature drift: ≤ 0.01% FS/℃

6. Insulation resistance: ≥ 100M Ω/500VDC between power supply input output

7. Insulation strength: 1000VAC/min

8. Power consumption: One in one out<1.2W, one in two out<2W, two in two out<2.4W

9. Working environment: ambient temperature 0~50 ℃
Relative humidity ≤ 85% RH (avoid strong corrosive gases) 10. Installation method: Rear panel clamp (DIN35 track)

4、 Quality Assurance:

Thank you for your attention and use of Lingyu Technology's products. Our company promises to provide a 24 month warranty service for this product. If any quality problems occur during the warranty period, the product will be repaired or replaced free of charge.