Power supplies & barriers for sensors & transmitters

Product picture process transmitter RMA42

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RMA42 process indicator with control unit

4-wire process indicator with control unit as DIN rail device with up to two universal sensor inputs and optional SIL approval

Input 2 x universal (current, voltage, R, RTD, TC, resistance)

Output 2 x Analog (current, voltage)

Display LCD
7 segment
Multicolour
Bargraph
TAG unit
Colour change in case of failure

Power Supply Wide range power supply 24 to 230 V AC/DC (-20 % / +10 %) 50/60 Hz

RN22 intrinsically safe isolating barrier, power supply and signal doubler for hazardous areas

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RN22 active barrier

Active barrier, 1/2-channel/SD for 4 to 20 mA, HART® transparent with 24 V DC as well as active/passive input and output, optionally with SIL and Ex

Input 0/4…20 mA / HART
feeding/not feeding

Output 0/4…20 mA / HART
active/passive

Power Supply 24 V DC

RLN22 1- or 2-channel, 24 V DC, isolating amplifier with relay signal output for systems up to SIL 2

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RLN22 NAMUR isolating amplifier

NAMUR isolating amplifier, 1/2-channel with 24 V DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

Input NAMUR
blocking: < 1,2 mA
conducting: > 2,1 mA

Output relay contact

Power Supply 24 V DC

RN42 active barrier, wide-range power supply of loop-powered transmitters

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RN42 active barrier

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

Input 0/4…20 mA / HART
feeding/not feeding

Output 0/4…20 mA / HART
active/passive

Power Supply 24...230 V AC/DC

RNB22 compact, high-efficiency primary switch mode power supply for DIN rail interface systems

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RNB22 system power supply unit

System power supply unit for parallel operation with 100 to 250 V AC input and 24 V DC 2.5 A output as well as static/dynamic boost

Output 24...28 V DC

Power Supply 100…240 V AC/DC

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RB223 passive barrier

One or two-channel barrier for the safe separation of 4...20 mA standard signal circuits

Input 2 x analog 4...20 mA

Output 2 x analog 4...20 mA

RLN42 2-channel, wide-range isolating amplifier with universal power supply

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RLN42 NAMUR isolating amplifier

NAMUR isolating amplifier, 2-channel with 24 to 230 V AC/DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

Input NAMUR
blocking: < 1,2 mA
conducting: > 2,1 mA

Output relay contact

Power Supply 20...250 V AC/DC

RNO22 - 24 V DC, HART® transparent output isolating amplifier for analog 0/4 to 20 mA signals

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RNO22 output amplifier

Output amplifier, 1/2-channel for 4 to 20 mA, HART® transparent with 24 V DC and line fault detection, optionally with SIL and Ex

Input 0/4…20 mA / HART
passive

Output 0/4…20 mA / HART
active

Power Supply 24 V DC

RNF22 power feed-in and error message module

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RNF22 power feed-in/error message module

Power feed-in/error message module for simple and redundant 24 V DC supply to T-connector with fault message monitoring

Input 24 V DC

Output Uin - 0,8 V

Power Supply 24 V DC

Fieldgate FXA42 - gateway voor bewaking op afstand

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Gateway voor meetwaarden Fieldgate FXA42

Communicatie van meetwaarden van aangesloten 4 tot 20 mA analoge en digitale procesinstrumenten

Input 4x 4...20 mA analog
4x digital
Pulse counter
Modbus TCP
Modbus RS485

Output 4x digital
Modbus TCP
Modbus RS485

Power supplies & barriers

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About power supplies & barriers

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

RN42 active barrier, wide range power supply

Measuring principle / application example

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.