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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

  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.

Manuals

Data sheet

Russian manual

EAC declaration

Metrology Pattern Approval (MPA)

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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