1746-NR8 Allen-Bradley PLC 1746 RTD and Thermocouple Modules 8 Inputs 16 Bits New

item ID#: 23987
  • Item condition: New and Original
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  • Weight: 2 Kg(s)
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    1746-NR8 Allen-Bradley PLC 1746 RTD and Thermocouple Modules 8 Inputs 16 Bits New


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    Fasttobuy: 1746-NR8 Allen-Bradley PLC 1746 RTD and Thermocouple Modules 8 Inputs 16 Bits New

    Features

    The RTD module supplies a small current to each RTD connected to the module inputs (up to 8 input channels). The module provides on-board scaling and converts RTD input to temperature (°C °F or reports resistance input in ohms.)

    Specification

     

    1746-NR4

    1746-NR8

    Backplane Current Consumption

    50 mA at 5V dc

    50 mA at 24V dc

    100 mA at 5V dc

    55 mA at 24V dc

    Backplane Power Consumption

    1.5W maximum

    (0.3 W at 5V dc, 1.2 W at 24V dc)

    1.82W maximum

    (0.5W at 5V dc, 1.32W at 24V dc)

    External Power Supply Requirements

    None

    Number of Channels

    4 (backplane isolated)

    8 (backplane isolated)

    I/O Chassis Location

    Any I/O module slot except slot 0

    A/D Conversion Method

    Sigma-Delta Modulation

    Input Filtering

    Low pass digital filter with programmable notch (filter) frequencies

    Common Mode Rejection (between

    inputs and chassis ground)

    > 150 dB at 50 Hz (10 Hz and 50 Hz filter

    frequencies)

    > 150 dB at 60 Hz (10 Hz and 60 Hz filter

    frequencies)

    > 120 dB at 50 Hz (28 Hz and 50 Hz filter

    frequencies)

    > 120 dB at 60 Hz (28 Hz and 60 Hz filter

    frequencies)

    Normal Mode Rejection (between [+]

    input and [-] input)

    Greater than 100 dB at 50 Hz (10 Hz, 50 Hz filter

    frequencies)

    Greater than 100 dB at 60 Hz (10 Hz, 60 Hz filter

    Frequencies)

    65 dB at 50/60 Hz (with 50/60 Hz filter)

    110 dB at 50 Hz (with 28 Hz filter)

    95 dB at 60 Hz (with 28 Hz filter)

    Maximum common mode voltage

    ± 1 volt

    Maximum allowed permanent

    overload

    Volts: ± 5V dc

    Current: ± 5mA

    Input Filter Cut-Off Frequencies

    2.62 Hz at 10 Hz filter frequency

    13.1 Hz at 50 Hz filter frequency

    15.72 Hz at 60 Hz filter frequency

    65.5 Hz at 250 Hz filter frequency

    7.80 Hz at 28 Hz filter frequency

    13.65 Hz at 50/60 Hz filter frequency

    209.6 Hz at 800 Hz filter frequency

    1676 Hz at 6400 Hz filter frequency

    Calibration

    Module autocalibrates when power is applied, a

    channel is enabled or when a change is made to

    its input type, filter frequency, or excitation

    current.

    Set module calibration disable to zero to enable

    module to autocalibrate when power is applied,

    a channel is enabled, or when a change is made

    to the input type, filter frequency, or excitation

    current.

    Isolation (optical)

    500V dc continuous between inputs and chassis

    ground, and between inputs and backplane

    707V dc for 1 minute

    Isolation Between Inputs

    None

    ±5V dc

     



    1746-NR8 Allen-Bradley PLC 1746 RTD and Thermocouple Modules 8 Inputs 16 Bits New

    Extended reading?


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