PR Electronics 3108 Isolated Repeater / Splitter

Features

  • Isolation and conversion of current signals
  • Slimline housing of 6 mm
  • Response time <7 ms
  • Splitter function: 1 in – 2 out
  • Simple – no setup needed
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PR Electronics 3108 Isolated Repeater / Splitter is a versatile device designed for the isolation and conversion of standard DC signals. This device ensures galvanic separation of analog current signals, effectively eliminating ground loops and enabling the measurement of floating signals. It provides a cost-effective and technologically advanced solution for the galvanic isolation of current signals to SCADA systems or PLC equipment.

Applications

  • Signal Isolation and Conversion: Provides isolation and conversion for standard DC signals, ensuring accurate signal transmission without interference.
  • Ground Loop Elimination: Eliminates ground loops, allowing for precise and stable signal measurements.
  • Floating Signal Measurement: Facilitates the measurement of floating signals, enhancing system reliability.
  • Industrial Compatibility: Ideal for installation in ATEX Ex Zone 2, IECEx Zone 2, and FM Division 2, making it suitable for hazardous environments.
  • High Vibration Resistance: Designed to withstand high vibration stress, making it perfect for use in demanding environments such as ships.

Technical Characteristics

  • Overvoltage and Polarity Protection: The input is safeguarded against overvoltage and polarity errors, ensuring long-term reliability.
  • Factory-Calibrated Ranges: Comes with factory-calibrated measurement ranges for quick and easy setup.
  • Floating Inputs and Outputs: Both inputs and outputs are floating and galvanically separated, providing robust isolation and signal integrity.

The PR Electronics 3108 Isolated Repeater / Splitter is an excellent choice for industries requiring reliable and accurate signal isolation and splitting, particularly in environments with stringent safety and performance requirements.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -25°C to +70°C
Storage temperature -40°C to +85°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
Installation in Pollution degree 2 & meas. / overvoltage cat. II
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 113 x 6.1 x 115 mm
Weight approx. 70 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13…2.5 mm2 / AWG 26…12 stranded wire
Screw terminal torque 0.5 Nm
Vibration IEC 60068-2-6
2…25 Hz ±1.6 mm
25…100 Hz ±4 g
COMMON SPECIFICATIONS
Supply
Supply voltage 16.8…31.2 VDC
Max. required power 0.75 W
Max. power dissipation 0.48 W
Isolation voltage
Isolation voltage, test / working 2.5 kVAC / 300 VAC (reinforced)
Zone 2 / Div. 2 250 VAC
Response time
Response time (0…90%, 100…10%) < 7 ms
Signal / noise ratio > 60 dB
Cut-off frequency (3 dB) > 100 Hz
Signal dynamics, input Analog signal chain
Signal dynamics, output Analog signal chain
Accuracy Better than 0.05%
Temperature coefficient < ±0.01% of span / °C
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span
INPUT SPECIFICATIONS
Current input
Measurement range 0…23 mA
Input voltage drop < 1.5 VDC
OUTPUT SPECIFICATIONS
Current output
Signal range 0…23 mA
Load (@ current output) ≤ 300 Ω
Load stability ≤ 0.002% of span / 100 Ω
Current limit ≤ 28 mA
of span = 0…20 mA
I.S. / EX MARKING
ATEX II 3 G Ex nA IIC T4 Gc
IECEx Ex nA IIC T4 Gc
FM, US Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4
FM, CA Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, Ex nA IIC T4
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011
APPROVALS
ATEX KEMA 10ATEX0147 X
IECEx KEM 10.0068X
c FM us FM17US0004X / FM17CA0003X
c UL us, UL 61010-1 E314307
DNV-GL Marine TAA00001RW
EAC Ex RU C-DK.HA65.B.00355/19

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