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6185

Loop-powered isolator

  • 1-, 2- and 4-channel galvanic isolation
  • Slimline channel width of less than 6 mm
  • No separate supply necessary
  • Low response time
  • High noise suppression

Manuals : pdf-icon.png

Data sheet : pdf-icon.png

  • Overview

  • Technical details

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    Application

    • Galvanic separation of analog current signals.
    • Elimination of ground loops and measurement of floating signals.
    • A competitive choice in terms of both price and technology for galvanic isolation of current signals to SCADA systems or PLC equipment.
    • Especially useful in applications necessitating an unproblematic transmission of current signals according to NAMUR (sensor error detection).

    Technical characteristics

    • PR 6185 is powered by the measured signal and loads the loop with max. 1.8 VDC.
    • The input is protected against overvoltage and polarity error.
    • The drop voltage for each channel can be calculated according to the following expression: Vdrop = 1.8 + (Iout. * Rload).
    • The output is voltage-limited to 15 VDC.
    • Inputs and outputs are floating and galvanically separated.

    Mounting / installation

    • Mounted vertically or horizontally on a DIN rail. As the devices can be mounted without distance between neighboring units, up to 168 channels can be mounted per meter.
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    Environmental Conditions

    Specifications range -20°C to +60°C
    Calibration temperature 20...28°C
    Relative humidity < 95% RH (non-cond.)
    Protection degree IP20

    Mechanical specifications

    Dimensions (HxWxD) 109 x 23.5 x 104 mm
    Weight approx. 155 / 180 / 230 g (1 / 2 / 4 channels)
    DIN rail type DIN 46277
    Wire size 1 x 2.5 mm2 stranded wire
    Screw terminal torque 0.5 Nm

    Common specifications

    Internal consumption, per channel 40 mW
    Voltage drop < 1.8 VDC, min. 1.8 V + (Iout.*Rload), max.
    Isolation voltage, test 2 kVAC
    Signal / noise ratio Min. 60 dB (0...100 kHz)
    Response time (0...90%, 100...10%) < 4 ms
    EMC immunity influence < ±0.5% of span

    Input specifications

    Current input: Measurement range 0...23 mA
    Input resistance, current input ≈ 90 Ω + Rload (@ 20 mA)

    Output specifications

    Current output: Signal range 0...23 mA
    Min. signal range 1:1
    Load (max.) 20 mA/600 Ω/12 VDC
    Load stability, current output < 0.03% of span / 100 Ω
    Current limit 50 mA
    Voltage limit 15 VDC
    *of span = of the presently selected range

    Approvals

    EMC EN 61326-1
    EAC TR-CU 020/2011 EN 61326-1