Active barrier for 0/4 to 20 mA/HART signal isolation

ExTVA-600-U0

Active barrier for 4...20 mA HART signal isolation, with 1-channel design, active/passive input and output, 24...230 V AC/DC supply, galvanic isolation and optional Ex connection for intrinsically safe devices.

Introduction

Stable process signals need clean separation between the field device and the control system. This 1-channel active barrier transmits and galvanically isolates 0/4...20 mA/HART signals, helping reduce ground loop effects while passing the current signal to a PLC, controller or other instrumentation.
 
Installation is flexible because both the input and output can be operated actively or passively. A 2- or 4-wire transmitter can be connected directly, and 2-wire transmitters can be supplied with power. HART communication is transmitted bidirectionally, with front connection sockets for HART communicators during sensor parameterization.
 
The compact DIN rail housing is designed for 35 mm rails according to IEC 60715 and supports side-by-side mounting. A 24...230 V AC/DC wide-range supply simplifies cabinet planning, while the optional associated apparatus version supports connection of intrinsically safe devices from Ex Zone 0/20 [ia] with operation in Ex Zone 2 [ec].

Clean signal transfer
Clean signal transfer
Galvanic isolation separates 0/4...20 mA/HART circuits for reliable PLC signals.
HART access
HART access
Front sockets allow HART communicators to be connected for sensor parameterization.
Flexible connection
Flexible connection
Active/passive input and output support direct connection of 2- or 4-wire transmitters.
Wide supply range
Wide supply range
24...230 V AC/DC supply simplifies integration in different cabinet concepts.
Ex connection option
Ex connection option
Optional associated apparatus supports Ex Zone 0/20 [ia] field devices.
Compact cabinet fit
Compact cabinet fit
17.5 mm DIN rail housing supports space-saving side-by-side installation.

Features

Active barrier design

The device transmits and galvanically isolates 0/4...20 mA/HART signals in a 1-channel configuration.

Input and output modes

The current input accepts active or passive operation. The output can also be operated actively or passively, with automatic mode detection at the output side.

Transmitter supply

Connected 2-wire transmitters can be supplied with power, enabling transmission of analog 0/4...20 mA/HART measured values to the non-hazardous area.

HART communication

HART signals are transmitted bidirectionally. Integrated front sockets provide a connection point for HART communicators.

DIN rail mounting

The device is designed for 35 mm DIN rail mounting according to IEC 60715 and can be installed horizontally or vertically.

Electrical connection

Plug-in screw terminals are used for signal and supply wiring. Optional push-in terminals are listed in the operating instructions.

Mechanical design

The housing measures 17.5 x 116 x 107.5 mm with terminals and is made from RoHS-compliant polycarbonate.