Describe the advantages of safety grating

What is a safety barrier? The safety barrier is connected between the intrinsically safe circuit and the non-intrinsically safe circuit. It is a device that limits the voltage and current supplied to the intrinsically safe circuit within a certain safety range. The editor on the official website of Pepperl+Fuchs Safety Fence will introduce you some of the advantages of using safety fences.

1. The loop-powered isolated safety barrier not only maintains the advantages of active isolated safety barriers, but also has the same wiring convenience as Zener safety barriers. It does not require another 24V power supply. It is especially suitable for DCS systems with I/O cards directly powered. .

2. When users apply DCS and ESD at the same time, choose a safety barrier with one input and two output, which can effectively isolate the two systems and avoid mutual influence between the systems.

3. The isolated safety barrier has strong signal processing capability. Such as switch input status control, mV, Pt100 change to 4-20mA and so on. This provides greater convenience, reasonableness and effectiveness to the application of field instruments and control systems.

4. The isolated safety barrier has many protective function circuits, and the possibility of accidental damage is small. On-site instrumentation is allowed to be overhauled with electricity, which can shorten the preparation time of the project and reduce the parking time.

5. Use isolated safety barriers, allow field instruments to be grounded, and allow field instruments to be non-isolated.

6. The use of isolated safety barriers greatly enhances the anti-interference ability of the detection and control loops, and improves system reliability.

7. The use of isolated safety barriers can effectively isolate the on-site loop signal in the hazardous area from the loop signal in the safe area. In this way, the intrinsically safe automatic control system does not require an intrinsically safe grounding system, which simplifies the construction when the intrinsically safe explosion-proof system is applied. 8. Compared with the Zener-type safety barrier, the isolated safety barrier has a higher price, but its many advantages and characteristics still bring a lot of convenience to the users, and more and more users prefer to choose the isolated safety barrier.