SBAU487 August   2025

 

  1.   1
  2.   Description
  3.   Getting Started and Next Steps
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Block Diagram
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Header Information
    3. 2.3 Jumper Information
    4. 2.4 Slide Switches and Push Buttons
    5. 2.5 Test Points
    6. 2.6 Cautions and Warnings
    7. 2.7 Analog Inputs
      1. 2.7.1 Voltage Inputs
        1. 2.7.1.1 Voltage Measurement Analog Front End
      2. 2.7.2 Current Sensor Inputs
        1. 2.7.2.1 Current Measurement Analog Front End
          1. 2.7.2.1.1 Rogowski Coil Inputs
      3. 2.7.3 Analog Gain Setting
  9. 3Software Installation
    1. 3.1 GUI Operation
    2. 3.2 Launch the Metrology Software
  10. 4Energy Metrology Software Overview
    1. 4.1 Using the ADS131M08MET-EVM
      1. 4.1.1 Measuring Voltage and Current
        1. 4.1.1.1 Calibration Procedure
          1. 4.1.1.1.1 Gain Calibration
          2. 4.1.1.1.2 Voltage and Current Gain Calibration
          3. 4.1.1.1.3 Active Power Gain Calibration
          4. 4.1.1.1.4 Offset Calibration
          5. 4.1.1.1.5 Phase Calibration
    2. 4.2 Test Accuracy Results
      1. 4.2.1 Current Transformer Results
      2. 4.2.2 Rogowski Coil Results
    3. 4.3 Developing an Application
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 Bill of Materials (BOM)
    3. 5.3 PCB Layouts
  12. 6Design and Documentation Support
    1. 6.1 Design Files
      1. 6.1.1 PCB Layout Recommendations
    2. 6.2 Tools and Software
    3. 6.3 Documentation Support
    4. 6.4 Support Resources
    5. 6.5 Trademarks
4.1.1.1.1 Gain Calibration

Gain correction for voltage and current can be done simultaneously for all phases. However, energy accuracy (%) from the reference meter for each individual phase is required for gain correction for active power. Also, when performing active power calibration for any given phase, the other phases must be turned OFF by turning off the current but leaving the other voltages enabled.