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3117
 
 

3117

 

Bipolar isolated converter

 

  • Conversion of voltage and current bipolar process signals to unipolar signals
  • Multiple signal ranges are selectable via DIP-switches
  • Fast response time < 7 ms and high output load stability
  • Excellent accuracy, better than 0.05 % of span
  • Slimline 6 mm housing
  1. Overview +

  2. Technical details +

  3. Accessories +


Application

  • The 3117 is an isolating converter which can be used for signal conversion of standard bipolar analog process signals into a unipolar analog signal.
  • The unit offers 3-port isolation and provides surge suppression and protects control systems from transients and noise.
  • The 3117 also eliminates ground loops and can be used for measuring floating signals.
  • Mounting of the 3117 can be in Safe area or in Zone 2 and Cl. 1 Div 2 area and is approved for marine applications.

Technical characteristics

  • Flexible 24 VDC (±30%) supply via power rail or connectors.
  • Excellent conversion accuracy, better than 0.05% of selected range.
  • Inputs and outputs are floating and galvanically separated.
  • A green front LED indicates operation status for the device.
  • All terminals are protected against overvoltage and polarity error.
  • Meeting the NAMUR NE21 recommendations, the 3117 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

  • Fast and easy configuration of factory calibrated measurement ranges via DIP-switches.
  • A very low power consumption allows DIN rail mounting without the need for any air gap.
  • Wide temperature operation range: -25...+70°C.

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 & measurement / 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 x 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

    0.80 W

  • Max. power dissipation

    0.43 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 or < 44 ms

  • MTBF, acc. to IEC 61709 (SN29500)

    > 241 years

  • Signal / noise ratio

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

  • Signal dynamics, input

    Analog signal chain

  • Signal dynamics, output

    Analog signal chain

  • Programming

    DIP-switches

  • Cut-off frequency (3 dB)

    > 100 Hz or 10 Hz (selectable via DIP-switch)

  • Accuracy

    < ±0.05% of span

  • 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

    -23...+23 mA

  • Programmable measurement ranges

    ± 10 and ± 20 mA

  • Input voltage drop

    < 1 VDC @ 23 mA

  • Voltage input

  • Measurement range

    -11.5...+11.5 V

  • Programmable ranges

    ±5 and ±10 V

  • Input resistance

    ≥ 1 MΩ

Output specifications

  • Current output

  • Signal range

    0...23 mA

  • Programmable signal ranges

    0 / 4...20 mA

  • Load (@ current output)

    ≤ 600 Ω

  • Load stability

    ≤ 0.002% of span / 100 Ω

  • Current limit

    ≤ 28 mA

  • Voltage output

  • Signal range

    0...10 VDC

  • Programmable signal ranges

    0/1...5 and 0/2...10 V

  • Load (@ voltage output)

    ≥ 10 kΩ

  • of span

    = of the presently selected range

I.S. / Ex marking

  • ATEX

    II 3 G Ex nA IIC T4 Gc

  • IECEx

    Ex nA IIC T4 Gc

  • FMus

    Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4

  • FMca

    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

Approvals

  • ATEX 2014/34/EU

    KEMA 10ATEX0147 X

  • IECEx

    KEM 10.0068X

  • FM

    FM17US0004X / FM17CA0003X

  • UL

    UL 61010-1

  • DNV-GL Marine

    Stand. f. Certific. No. 2.4

  • CCOE

    P337347/1

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