Bipolar DC Signal Splitter

Model : PR 3118

Brand: PR Electronics

  • Conversion of bipolar DC voltage and current signals to uni/bipolar signals
  • Splitter function: 1 signal in and 2 signals out
  • Current input measurement range: -23…+23 mA
  • Voltage input measurement ranges: -11.5…+11.5 V
  • DC Current and Voltage output
  • 2.5kVAC galvanic isolation
  • Excellent accuracy, better than 0.05% of span
  • Only 6.1mm width
  • Excellent EMC performance and 50/60 Hz noise suppression
  • Fast response time (< 7ms)
  • Configuration via DIP-switches and selectable signal ranges

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Available on backorder


Bipolar Signal Converter, Duplicator, Signal Isolator, Splitter


PR Electronics

Number of Inputs


Input Type

DC Current, DC Voltage

Number of Outputs


Output Type

DC Current, DC Voltage


DIP switch


< ±0.05% of span


ATEX, Zone2, CCC, DNV, EAC, FM, Zone2 – DIV2, IECEx, Zone2, UL 61010

Power Supply

20…30 VDC


2.5 kVAC

Operating Temperature

-25 to +70°C

Temperature Coefficient

< ±0.01% of span /°C

Protection Degree

IP 20


113x 6.1×115 mm



Other product features

70 g


175 × 150 × 15 mm


  • The 3118 is an isolating converter and splitter which can be used for signal conversion of standard bipolar analog process signals into two individual unipolar analog signals.
  • The unit offers 4-port isolation, provides surge suppression, and protects control systems from transients and noise.
  • The 3118 also eliminates ground loops and can be used for measuring floating signals.
  • Mounting of the 3118 can be in the Safe area or in Zone 2 and Cl. 1 Div 2 area and is approved for marine applications.
  • The analog output can be easily configured and programmed to be bipolar in the ranges ±10 mA and ±20 mA (*special setup).

Technical characteristics

  • Flexible 24 VDC (±30%) supply via power rail or connectors.
  • Excellent conversion accuracy, better than 0.05% of the selected range.
  • A green front LED indicates the operation status for the device.
  • All terminals are protected against overvoltage and polarity error.
  • Meeting the NAMUR NE21 recommendations, the 3118 ensures top measurement performance in harsh EMC environments.
  • High galvanic isolation of 2.5 kVAC.
  • Fast input to output response time < 7 ms / > 100 Hz – 10 Hz bandwidth damping possible via DIP-switch.
  • Excellent signal/noise ratio > 60 dB.

Mounting / installation / programming

  • Easy configuration of factory-calibrated measurement ranges via DIP switches.
  • A very low power consumption allows DIN rail mounting without needing any air gap.
  • Wide temperature operation range: -25…+70°C.

Source: PR3118 Official Page

Product Documents:


PR Electronics Solutions:

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