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6185
 
 

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
  1. Overview +

  2. Technical details +


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.

Environmental Conditions

  • Operating temperature

    -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

  • Supply

  • Power dissipation, per channel

    40 mW

  • Isolation voltage

  • Test voltage

    2 kVAC

  • Response time

  • Response time (0...90%, 100...10%)

    < 4 ms

  • Voltage drop

    < 1.8 VDC, min.

    1.8 V + (Iout.*Rload), max.

  • Signal / noise ratio

    Min. 60 dB (0...100 kHz)

  • Accuracy

    Better than 0.1% of sel. range

  • EMC immunity influence

    < ±0.5% of span

Input specifications

  • Current input

  • Measurement range

    0...23 mA

  • Input resistance

    ≈ 90 Ω + Rload (@ 20 mA)

Output specifications

  • Current output

  • Signal range

    0...23 mA

  • Min. signal range

    1:1

  • Load (@ current output)

    ≤ 600 Ω

  • Load stability

    < 0.03% of span / 100 Ω

  • Current limit

    50 mA

  • Voltage limit

    15 VDC

  • of span

    = of the presently selected range

Observed authority requirements

  • EMC

    2014/30/EU

  • EAC

    TR-CU 020/2011

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