Eaton MTL - MTL5541 ZENER BARRIER, REPEATER POWER SUPPLY, 1 CHANNEL, SMART TRANSMITTER, 4-20 MA, CURRENT INPUT/OUTPUT, ATEX, HART, INTRINSICALLY SAFE

Zener Barrier, Repeater Power Supply, 1 Channel

The Eaton MTL5000 range of galvanic zener barrier isolators provide intrinsically safe communication and signal conditioning for a wide range of hazardous-area devices. Total AC and DC isolation exists between input, output and power supply on separately powered units, and between input and output on loop-powered units. No IS earth is required.

The MTLx541 provides a fully-floating DC supply for energising a conventional 2 or 3-wire 4/20mA transmitter which is located in a hazardous area, and repeats the current in another floating circuit to drive a safe-area load. For HART 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA loop current. DIN rail mounting and plug-in signal and power connectors simplify installation and maintenance. Units are powered from a 20 to 35V dc supply.

Alternatively, the MTLx541S acts as a current sink for a safe-area connection rather than driving a current into the load. Separately powered current sources, such as 4-wire transmitters, can be connected but will not support HART communication.

Isolation Barrier Features

• Galvanic barrier
• Transmitter location – Zone 0
• Single Channel
• Signal range 4 to 20 mA
• Voltage 20 to 35 Vdc
• HART Communications
• LED indicator