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Parts by Number Top

Part # Distributor Manufacturer Product Category Description
H921 Radwell Johnson Controls Not Provided CURRENT SENSOR LOOP 4-20MA
H721 Radwell Johnson Controls Not Provided CURRENT SENSOR; LOOP; 4-20MA
510A Radwell Transmation Controls & Indicators, Conversion Module CURRENT LOOP ALARM MODULE 4-20MA
EL-USB-4 Digi-Key Martel Electronics Test and Measurement DATA LOG 4-20MA CURRENT LOOP USB
XTR117AIDGKRG4 Digi-Key Texas Instruments Integrated Circuits (ICs) IC 4-20MA CURRENT-LOOP TX 8VSSOP
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Conduct Research Top

  • Introduction to the Two-Wire Transmitter and the 4-20mA Current Loop
    . This paper reviews the operation of this transmission standard and. its advantages, in particular as it relates to two-wire transmitters and the associated 4-20mA current loop.
  • Introduction to the Two-Wire Transmitter and the 4-20mA Current Loop (.pdf)
    zero" and an alarm condition. Some installations still use pneumatic control today. Modern I/P converters (current-to-pressure transducers) are available to convert the 4-20mA control loops to common pneumatic ranges, such as 3-15psi, 1-18psi, 3-27psi, and 6-30psi.
  • Programmable Current Loop
    The DACOUT of the FGD40xx can be used to design a programmable current loop from 4 to 20mA (4mA when DACOUT=0, 20mA when DACOUT=2.5V). The DC voltage output of the DACOUT has a voltage range of -2.500 to +2.500; for current sinking application 0 to +2.5V the design in Figure 2 can be used. For 0V
  • Power Design Considerations For LED Applications
    The DACOUT of the FGD40xx can be used to design a programmable current loop from 4 to 20mA (4mA when DACOUT=0, 20mA when DACOUT=2.5V). The DC voltage output of the DACOUT has a voltage range of -2.500 to +2.500; for current sinking application 0 to +2.5V the design in Figure 2 can be used. For 0V

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