Loop-powered DC Current Isolator

Model : PR 3185

Brand: PR Electronics

  • Isolation and 1:1 conversion of standard current signals
  • 1 or 2 channel input
  • Current input range: 0…23 mA
  • Only 6.1mm width
  • Excellent accuracy, better than 0.1% of span
  • Fast response time less than 7 ms
  • 2.5kVAC galvanic isolation and High load stability
  • Low cost

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Catalogue
Specifications
Function

Repeater, Signal Isolator

Brand

PR Electronics

Number of Inputs

1, 2

Input Type

DC Current

Number of Outputs

1, 2

Output Type

DC Current

Programming

No

Accuracy

< ±0.1% of span

Certification

ATEX, Zone2, CCC, DNV, EAC, FM, Zone2 – DIV2, IECEx, Zone2

Power Supply

Input loop-powered

Isolation

2.5 kVAC

Operating Temperature

-25 to +70°C

Temperature Coefficient

< ±0.01% of span /°C

Protection Degree

IP 20

Dimension

113x 6.1×115 mm

Weight

70g
Other product features
Channels

1ch, 2ch

Weight

70 g

Dimensions

175 × 150 × 15 mm

Application

  • 1:1 input loop powered isolator of current signals in the range 0(4)…20 mA.
  • 3185 is an easy-mounting DIN rail unit.
  • A very competitive choice in terms of price and technology for galvanic isolation of current signals.
  • Provides surge suppression and protects control systems from transients and noise.
  • 3185 eliminates ground loops and can be used for measuring floating signals.
  • The device can be mounted in the Safe area or in Zone 2 and Cl. 1 Div 2. area.

Technical characteristics

  • 3185 is powered by the analog input current signal loop.
  • Low input voltage drop, type 1.35 V + Vout.
  • Excellent conversion accuracy is better than 0.1% in the range of 0…20.5 mA.
  • The functional range is 0…23 mA, meaning 3185 is NAMUR NE43 compliant.
  • Inputs and outputs are floating and galvanically separated.
  • The output is voltage limited to 17.5 VDC.
  • High galvanic isolation of 2.5 kVAC.
  • Fast response time < 5 ms.
  • Excellent signal/noise ratio > 60 dB.

Mounting / installation / programming

  • DIN rail mounting with up to 330 channels per meter.
  • Temperature operation range is from -25…+70°C.

Source: PR3185 Official Page

Product Documents:

Certifications:

PR Electronics Solutions:

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