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FineTek TXX2 Explosion-proof Safety Barrier Operations
The barrier is provided to isolate the power supply of a transmitter in a hazardous area, as well as transmit analog signal and digital signal generated by the transmitter to the safe side. The analog 4~20mA output signal can be converted into a 4~20mA isolated type. Moreover, it can read the HART digital signal or RS485 signal in the hazardous side, and isolates the digital output signal to the safe side.
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Features
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Wide input voltage range
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Integrated power supply safety barrier and digital communication safety barrier
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Insulation withstand voltage of up to 2500V R in hazardous and safe sides
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RS485 repeater mode for safety digital communication
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HART repeater mode for safety digital communication
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Internal 250 Ohm for HART communication
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Power supply indicator and digital communication indicator
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Intrinsically safe explosion-proof IECEx/ATEX
SPECIFICATIONS
Hazardous side | |
Input Current | 4~20mA or 20~4mA |
Voltage | <35 Vdc |
Digital output | HART/RS485 |
Safe side | |
Supply voltage | 20~35Vdc |
Power consumption | 4W |
Analog output | 4~20 mA (active), Load impedance <500W |
Digital output | HART 7.3(Internal 250W communication resistance) RS485 |
Technical parameters | |
Accuracy | 0.1% F.S(20°C) <2.0uA / °C(25°C~60°C) <3.0uA / °C(-20°C~25°C) |
Ambient temperature | -20~60°C |
Insulation strength | 2500Vac; Leakage current <1mA; 1min, Hazardous side and safe side |
IP grade | IP20 |
Application environment | Zone 0, Zone 1, Zone 2、 IIA、IIB/IIIC、IIC |
Certification (Optional) | IECEx/ATEX |