Woodward

UMT 1 Series

    Woodward Measuring Transducers with RMS Sensing

      

    device_umt_1.jpg   Not_Preffered_for_NEW_Design

    NOT PREFERRED FOR NEW DESIGN!

     


    Woodward’s UMT 1 Series consists of measuring transducers that feature true RMS sensing. Measured values are calculated and displayed on a two-line, 16-character LC Display. They can either be assigned to analog outputs (configurable as -20 to 20 mA, 0 to 20 mA, or 4 to 20 mA) or transmitted to a higher-level control system via RS-485 or Profibus DP interface.

    The primary measured values of voltage and current are used to calculate the values for active, re-active, apparent power, power factor (cosphi), kWh and kvarh. An impulse output is also provided to output kWh or kVarh values.

    Features include:

     

    • True RMS sensing
    • Class 0.5 accuracy
    • RS-485 Modbus RTU Slave or Profibus DP communication
    • Configurable measuring system for either single-phase, three-phase, or a combination of both
    • Front panel configurable
     

    Packages

    The UMT 1 Series is available with different feature packages. The following table shows the differences between these packages. 

     

    UMT 1 Series

    Model

    UMT 1

    UMT 1

    UMT 1

    UMT 1

    Package

    A3

    A3SU

    A3SU

    A6

    Analog outputs

    3

    3

    3

    6

    RS-485 (Modbus)

    ---

    ---

    ---

    Profibus DP

    ---

    ---

    ---

     

    Specifications

    Power supply

    24Vdc (8 to 30 Vdc)

    Consumption

    max. 10W

    Ambient temperature (operation)

    -20 to 70 °C / -4 to 158 °F

    Ambient humidity

    95 %, non-condensing

    Voltage AC input

    115Vac or 400Vac true RMS

    Accuracy

    Class 0.5

    Current AC input

    1A or 5A true RMS

    Accuracy Iac

    Class 0.5

    Analog outputs (isolated)

    -20/0/4 to 20 mA

    Housing

     

    Front panel mounting

    Plastic housing

    Dimension (WxHxD)

    96 × 72 × 130 mm

    Sealing (front/back)

    IP42/IP21

    Weight

    Approx. 800 g

     

     

    Applications

    application_umt_1.gif

    Approvals

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