Safety barriers, also known as safety retainers. The safety interface of the intrinsic safety circuit can be located in the safety zone (intrinsic safety) andHazardous areaThe bidirectional transmission of electrical signals between non essential safety zones can limit the transfer of energy from hazardous areas to safe areas caused by faults. Generally, safety barriers have Zener and isolation types.

FBE043-P One in Two out Distribution Safety Barrier | Guangzhou FBE043-POn site power distribution signal input isolated safety barrier provides isolated intrinsic safety power voltage to transmitters in hazardous areas, and isolates and converts the 4mA~20mA signal generated by the transmitter before transmitting it to the safety zone control system or other intelligent instruments. This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit. Welcome to all customers.

FBE043-P One in Two out Distribution Safety Barrier | Guangzhou FBE043-Poverview
On site power distribution signal input isolated safety barrier provides isolated intrinsic safety power voltage to transmitters in hazardous areas, and isolates and converts the 4mA~20mA signal generated by the transmitter before transmitting it to the safety zone control system or other intelligent instruments.
This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
Characteristics
Provide a distribution voltage of 16.5V to 28V to the transmitter.
Isolate and transmit the 4mA to 20mA signal of the transmitter.
You can choose 4mA~20mA or 1V~5 output, or other required DC signals. Modular watch core design, no need for zero and full adjustment.
Equipped with a working power indicator light.
[Exia]IICInput circuit overcurrent protection.

Product Application

1. Provide distribution voltage to the on-site transmitter and isolate and convert the input signal.
2. Devices connected to the site: two-wire or three wire transmitters.
3. Location of on-site equipment: Zone 0, Zone 1, Zone 2; IIA zone, IIB zone, IIC zone; T4 to T6 danger zone.
4. The safety barrier is connected to the control system (or other unit combination instruments): The AI card of each DCS/PLC receives current or voltage signals.

FBE043 - I - II- III

PRODUCT MODEL
Input channel (Ex) input signal
4mA～20mA………………………………… P
*Road output channel signal output
4mA～20mA……… A… 1V～5V…………… 1
0mA～20mA……… B… 0V～5V…………… 2
0mA～10mA……… C… 0V～10V………… 3
Current range... Z... Voltage range... 9
Second output channel signal output
4mA～20mA……… A… 1V～5V…………… 1
0mA～20mA……… B… 0V～5V…………… 2
0mA～10mA……… C… 0V～10V………… 3
Current range... Z... Voltage range... 9

Example of Selection

Input: transmitter 4mA~20mA

Output: 1 channel 4mA~20mA; 2-channel 0V~5V

Order code: FBE043-PA2

Precautions for use

In addition to selecting appropriate safety barriers, the following aspects should be noted when using intrinsically safe systems:

1、 Attention should be paid to the capacitance and inductance of cables and on-site equipment. Intrinsic safety explosion-proof refers to system explosion-proof. In addition to achieving the required explosion-proof level for safety barriers, the energy storage of cables and on-site equipment is also a key issue. Especially after parameter authentication replaces system authentication, engineering companies need to pay special attention to this issue.

2、 Attention should be paid to intrinsic safety grounding. Zener safety barriers require intrinsic safety grounding, and the grounding resistance should be less than 1.

3、 Intrinsic safety cables and non intrinsic safety cables should be laid separately in different cable trays. And there should be clear markings.

4、 Attention should be paid to power off when replacing.