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Yokogawa DCS Analog Input Moudle Yokogawa

Country of Origin: Japan
Minimum Order:1
Price/Payment: USD500-1000/PC
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Yokogawa DCS Analog Input Moudle Yokogawa

Product Specifications/Features
    YOKOGAWA Analog Input Module AAI143


    STANDARD SPECIFICATIONS of AAI143
    Current/Voltage Input Modules (Non-Isolated)
    These modules provide 16 inputs of mainly 4 to 20 mA DC or 1 to 5 V DC standardized signals from 2-wire/4-wire transmitters.
    They can be used in dual-redundant configuration.


    Current Input Modules (Isolated)
    AAI143 provides 16 inputs of 4 to 20 mA signal. It can be used in dual-redundant configuration.

    Items Specifications
    Model AAI143 (*1)
    Number of input channels 16, isolated
    Input signal 4 to 20 mA
    Allowable input current 24 mA
    Input resistance Power ON 270 Ω (20 mA) to 350 Ω (4 mA) (*2)

    Power OFF 500 kΩ or larger
    Accuracy ±16 μA
    Data update period 10 ms
    Transmitter power supply 19.0 V or higher (at 20 mA) 25.5 V or less (at 0 mA) (output current limit: 25 mA) (*5)
    Setting of 2-wire or 4-wire transmitter For each channel by setting pin
    Drift due to ambient temperature change ±16 μA/10 C
    Maximum current consumption 230 mA (5 V DC), 540 mA (24 V DC)
    Weight 0.3 kg
    External communication Pressure clamp terminal, MIL connector Cable, dedicated cable (KS1)
    HART communication (*3) Available



    *1: A Zener barrier is not allowed to be connected with this module. Use an isolation barrier when the module is used in
    intrinsically safe application.
    *2: The module input resistance viewed from the terminals depends on the current strength as calculated as below:
    250 Ω +
    current value
    voltage drop in the input protection circuit
    F04E.ai
    *3: When this module is installed to a ER bus node unit with HART function, the EB401 firmware must be rev. 2 or later.
    *4: When the dedicated cable is used, the withstanding voltage is 500 V AC (between the input signal and the system). When
    the ML connector cable is used, the withstanding voltage depends on the electrical specifications of the cable.
    *5: This voltage is generated between the connecting terminals for 2-wire transmitters for this module. When calculating the
    minimum operating voltage for transmitters, consider to allow margins for voltage drop in external wiring.

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