Passive barrier

1 or 2-channel passive barrier

RB223

from € 95.-
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      • Space-saving single/dual channel version

      • Can be used up to SIL3

      • Bidirectional HART®  transmission

         

     

    Specs at a glance

    Certificates

    ATEX II (1) GD EEx ia IIC/IIB

    ATEX II (1) GD EEx ib IIC/IIB

    HART® communication Built-in resistance for HART® communication 232 Ω
    Version Optional dual-channel version
    Signal transmission
    • From non-Ex to Ex-areas
    • From Ex to non-Ex areas
    Product / VersionPrice / pcs. in EUROrder code
    ApprovalChannelTransmission direction1 to 34 to 1011+
    Non-hazardous area1xIn-/Output108.-101.-95.- RB223-A1A
    2xIn-/Output157.-146.-138.- RB223-A2A
    ATEX II(1)GD(Ex ia)IIC1xLPS hazardous area to non-hazardous area120.-111.-105.- RB223-B1A
    LPS non-hazardous to hazardous area120.-111.-105.- RB223-B1B
    2xLPS hazardous area to non-hazardous area168.-157.-148.- RB223-B2A
    LPS non-hazardous to hazardous area168.-157.-148.- RB223-B2B

    Accessory

    Product / VersionPrice / pcs. in EUROrder code
    Housing Field, R4 182x180x165, 5xM20, PC Protection housing Minitec. Synthetic housing with transparent cover. Protection IP66. 4x22.5mm / 2x45mm. Usage: FTL825.70.53 52010132

    Prices valid until 30.11.2017 in EUR per unit (not including shipping and applicable sales tax). See
    Endress+Hauser Terms and Conditions

  • Application

    The RB223 isolator can be used to galvanically isolate active signal circuits (0 to 20 mA) in three applications:

    • Transmission from non-Ex to Ex areas e.g for active adjusters,
      controllers or indicators
    • Transmission from Ex to non-Ex areas for connection of active,
      intrinsically safe circuits to the PLC
    • Transmission from Ex to non-Ex areas for supply of intrinsically safe transmitters with non-intrinsically safe transmitter power supply

    Function

    The passive isolator transmits signal circuits from the input to the output by galvanic isolation. A HART® signal is also transmitted. The device is optionally available with intrinsically safe input/ output. The device is loop-powered and does not need any additional supply voltage of its own.

    Application Example

    Passive barrier RB223 an application example

    a) Ex area

    b) NonEx area

    c) Valve, actuator, display

    d) Active

    e) Passive

    f) Process transmitter

    g) 2-wire device (sensor, actuator)

    h) 4-wire device (sensor, actuator)

    i) Power supply

  • Technical data

    Current transmission direction Non-Ex → Ex; Input
    Function range 0 to 40 mA (to 22 mA for specified accuracy)
    Effective voltage Max. < 26 V for specified accuracy
    Short circuit current Imax = 100 mA
    Limiting voltage Umax = 30 V
    Current transmission direction Non-Ex → Ex; Output
    Function range 0 to 40 mA (to 22 mA for specified accuracy), max. current depends on load
    Load Load resistance max. 0 to 600 Ω
    Type of protection Intrinsically safe according to ATEX:
    • Max. voltage: Uo ≤ 28 V
    • Max. current: Io ≤ 93 mA
    • Max. power: Po ≤ 660 mW
    Current transmission direction Ex → Non-Ex; Input
    Function range 0 to 40 mA (to 22 mA for specified accuracy)
    Type of protection Intrinsically safe according to ATEX:
    • Max. voltage: Ui ≤ 30 V
    • Max. current: Ii ≤ 100 mA
    • Max. power: Pi ≤ 750 mW
    Current transmission direction Ex → Non-Ex; Output
    Function range 0 to 40 mA (to 22 mA for specified accuracy), max. current depends on load
    Load Load resistance max. 0 to 600 Ω
    Galvanic isolation
    Test voltage

    >1.5 kV AC between input and output

    >1.5 kV AC between the channels

    Power supply
    Starting current Own consumption < 50 µA
    Voltage drop

    <(1.9 V + 400 Ω × current loop) for nonEx → Ex

    <(3.9 V + 120 Ω × current loop) for Ex → nonEx

    Power loss

    <0.2 W at 20 mA (per channel) without HART®

    <0.3 W at 20 mA (per channel) with HART®

    Accuracy
    Current transmission < ±10 µA + 0.15 % from measured value 
    Temperature drift ≤ ±0.01 % / 10 K
    Operating conditions
    Ambient temp. –20 to +60 °C (–4 to +140 °F)
    Storage temperature –20 to +80 °C (–4 to +176 °F)
    Climate class To IEC 60 654-1 class B2
    Relative humidity <95 % without condensation
    EMC Interference immunity to IEC 61 326 (industry) and NAMUR NE21
    Mechanical construction
    Dimensions
    (W × H × D)
    22.5 × 96 × 112 (0.89" × 3.78" × 4.33") for DIN rail to IEC 60 715 TH35
    Weight Approx. 150 g (5.29 oz.)
    General
    Communication HART® protocol: bi-directional possible
    Frequency response 650 Hz for 500 Ω load for nonEx -> Ex 1300 Hz for 500 Ω load for Ex -> nonEx
    Approvals
    Ex approvals

    ATEX II (1) GD [EEx ia] IIC/IIB

    ATEX II (1) GD [EEx ib] IIC/IIB

    SIL Can be used up to SIL3

    Dimensions (in mm)

    Dimension of an isolator RB223

    Installation according to instruction manual

    Electrical connection

    Connection RB223, Ex → Non-Ex 2 channel

    Passive barrier RB223 electrical connection 1

    a) Non-Ex

    b) channel 2

    c) channel 1

    Connection RB223, Non-Ex → Ex 2 channel

    Passive barrier RB223 electrical connection 2

    a) Non-Ex

    b) channel 2

    c) channel 1

  • More documents for RB223