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5115A
 
 

5115A

 

Signal calculator

 

  • Redundancy measurement with 2 input signals
  • Signal calculator with the four arithmetical operations
  • Duplication of the input signal
  • Input for RTD, Ohm, TC, mV, mA, and V
  • Universal supply by AC or DC
  1. Overview +

  2. Technical details +

  3. Accessories +


Application

  • Redundancy measurement of temperature by means of two sensors, where the secondary sensor takes over the measurement when a sensor error occurs on the primary sensor.
  • Duplication of the input signal, e.g. from a temperature sensor or an analog process signal to two separate analog outputs.
  • Signal calculator with four arithmetical operations: Addition, subtraction, multiplication and division.
  • Example: Differential measurement:
    (Input 1 * K1) - (Input 2 * K2) + K4
  • Example: Average measurement:
    (Input 1 * 0.5) + (Input 2 * 0.5) + K4
  • Example: Different functions on the outputs:
    Output 1 = input 1 - input 2, and Output 2 = input 1 + input 2
  • Power supply for 2-wire transmitters.

Technical characteristics

  • Within a few seconds the user can program PR5115A to a selected application using the configuration program PReset.
  • A green front LED indicates normal operation, sensor error on each sensor, and functional error.
  • Continuous check of vital stored data for safety reasons.
  • 5-port 3.75 kVAC galvanic isolation.

Mounting / installation

  • Mounted vertically or horizontally on a DIN rail. As the devices can be mounted without any distance between neighboring units, up to 42 devices can be mounted per meter.

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 130 mm

  • Weight approx.

    225 g

  • Wire size

    1 x 2.5 mm2 stranded wire

  • Screw terminal torque

    0.5 Nm

  • Vibration

    IEC 60068-2-6

  • 2...13.2 Hz

    ±1 mm

  • 13.2...100 Hz

    ±0.7 g

Common specifications

  • Supply

  • Supply voltage, universal

    21.6...253 VAC, 50...60 Hz or 19.2...300 VDC

  • Fuse

    400 mA SB / 250 VAC

  • Max. required power

    ≤ 3 W

  • Isolation voltage

  • Isolation voltage, test / working

    3.75 kVAC / 250 VAC

  • PELV/SELV

    IEC 61140

  • Response time

  • Temperature input, programmable (0...90%, 100...10%)

    400 ms...60 s

  • mA / V input (programmable)

    250 ms...60 s

  • Programming

    Loop Link

  • Signal / noise ratio

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

  • Redundancy switch-over time

    ≤ 400 ms

  • Accuracy

    Better than 0.05% of selected range

  • Signal dynamics, input

    22 bit

  • Signal dynamics, output

    16 bit

  • Auxiliary voltages: Reference voltage

    2.5 VDC ±0.5% / 15 mA

  • EMC immunity influence

    < ±0.5% of span

  • Extended EMC immunity: NAMUR NE21, A criterion, burst

    < ±1% of span

Input specifications

  • Common input specifications

  • Max. offset

    50% of selected max. value

  • RTD input

  • RTD type

    Pt100, Ni100, lin. R

  • Cable resistance per wire

    10 Ω (max.)

  • Sensor current

    Nom. 0.2 mA

  • Effect of sensor cable resistance (3-/4-wire)

    < 0.002 Ω / Ω

  • Sensor error detection

    Yes

  • TC input

  • Thermocouple type

    B, E, J, K, L, N, R, S, T, U, W3, W5, LR

  • Cold junction compensation (CJC)

    < ±1.0°C

  • Sensor error current

    Nom. 30 μA

  • Current input

  • Measurement range

    0...100 mA

  • Min. measurement range (span)

    4 mA

  • Input resistance: Supplied unit

    Nom. 10 Ω + PTC 10 Ω

  • Input resistance: Non-supplied unit

    RSHUNT = ∞, VDROP < 6 V

  • Voltage input

  • Measurement range

    0...250 VDC

  • Min. measurement range (span)

    5 mV

  • Input resistance

    Nom. 10 MΩ (≤ 2.5 VDC)

    Nom. 5 MΩ (> 2.5 VDC)

  • mV input

  • Measurement range

    -150...+150 mV

Output specifications

  • Current output

  • Signal range

    0...20 mA

  • Min. signal range

    10 mA

  • Load (@ current output)

    ≤ 600 Ω

  • Load stability

    ≤ 0.01% of span / 100 Ω

  • Current limit

    ≤ 28 mA

  • Sensor error indication

    Programmable 0...23 mA

  • NAMUR NE43 Upscale/Downscale

    23 mA / 3.5 mA

  • Voltage output

  • Signal range

    0...10 VDC

  • Min. signal range

    500 mV

  • Load (@ voltage output)

    ≥ 500 kΩ

  • Passive 2-wire mA output

  • Signal range

    4...20 mA

  • Load stability

    ≤ 0.01% of span / 100 Ω

  • Effect of external 2-wire supply voltage variation

    < 0.005% of span / V

  • Max. external 2-wire supply

    29 VDC

  • of span

    = of the presently selected range

Observed authority requirements

  • EMC

    2014/30/EU

  • LVD

    2014/35/EU

  • EAC

    TR-CU 020/2011

Approvals

  • DNV-GL Marine

    Stand. f. Certific. No. 2.4

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