Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex
Typ sygnału wejściowego4x 4...20 mA analog 4x digital Pulse counter Modbus TCP Modbus RS485
Typ sygnału wyjściowego4x digital Modbus TCP Modbus RS485
Power supplies & barriers
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Power supplies & barriers supplies e.g. a transmitter with power, if required also in the Ex-area, and then transmits the galvanically isolated signal. With the optionally available HART® monitoring the status of the transmitter is monitored. Thus even just briefly occurring errors can be easily located.
Portfolio description
Our portfolio of DIN rail power supplies & barriers provides:
Power supplies for 2 or 4 wire transmitters
Active barrier with power supply for safe separation of 4...20 mA current circuits in one device
Power supplies & barriers with bidirectional HART® transmission, communication sockets for HART® and integrated HART® resistor for sensor configuration
Application example - power supply of a temperature transmitter: If a 4 to 20 mA HART® head transmitter is installed in a thermometer it has to be supplied with power. An active barrier supplies the head transmitter with power, if required also in the Ex-area, and then transmits the galvanically isolated signal. With the optionally available HART® monitoring the status of the head transmitter is monitored. If an error arises a relay at the active barrier sends an alarm.
Application example for a passive barrier with SPS: If a sensor in the Ex-area is to be supplied via a SPS the use of a passive barrier is necessary. The passive barrier transmits the supply from the Non-Ex area into the Ex-area and sends back the 4 to 20 mA signal. The passive barrier does not require a power supply as it receives its power from the 4 to 20 mA loop.
Benefits
Wide range power supply, flexible power source
Power supplies for 2 or 4 wire transmitters
Galvanic isolation of 4 to 20 mA current circuits
International Ex approvals, Germanischer Lloyd / marine approval available
Sensor monitoring with early-warning system
Do pobrania
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Brochure field of activity system products
System products and data managers - Solutions for the loop
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