用户手册 — National Instruments NI 4070/4072 6 1/2-Digit FlexDMM

目录

• NI 4070/4072 6½-Digit FlexDMM Calibration Procedure

  1
• Contents

  1
• Conventions

  2
• Software Requirements

  2
• Documentation Requirements

  3
  • Calibration Function Reference

    3
• Password

  3
• Calibration Interval

  4
• Test Equipment

  4
  • Required Test Equipment

    4
    • Requirements for All NI 4070/4072 Devices

      4
    • Additional Requirements for the NI 4072

      4
  • Optional Test Equipment

    5
• Test Conditions

  5
• Calibration Procedures

  6
  • Initial Setup

    6
  • Verification Procedures

    7
    • Verifying DC Voltage

      8
    • Figure 1. Cable Connections for Voltage and 2-Wire Resistance

      10
    • Table 1. Fluke 5440 Cable Connections

      10
    • Verifying AC Voltage

      15
    • Table 2. niDMM_ConfigureMeasurement Parameters

      17
    • Table 3. niDMM_ConfigureMeasurement Parameters

      18
    • Table 4. niDMM_ConfigureMeasurement Parameters

      19
    • Table 5. niDMM_ConfigureMeasurement Parameters

      20
    • Table 6. niDMM_ConfigureMeasurement Parameters

      21
    • Verifying 4-Wire Resistance

      22
    • Figure 2. Cable Connections for 4-Wire Resistance

      22
    • Table 7. Fluke 5440 Cable Connections

      23
    • Table 8. niDMM_ConfigureMeasurement Parameters

      24
    • Verifying 2-Wire Resistance

      24
    • Verifying DC Current

      30
    • Figure 3. Cable Connections for Current

      30
    • Table 9. Fluke 5440 Cable Connections

      31
    • Verifying AC Current

      33
    • Verifying Frequency

      34
    • Verifying Capacitance and Inductance (NI 4072 Only)

      37
    • Table 10. niDMM_ConfigureMeasurement Parameters

      40
  • Adjustment Procedures

    41
    • Setting Up the Test Equipment

      41
    • Adjusting DC Voltage and Resistance

      42
    • Adjusting AC Voltage (AC- and DC-Coupled) Modes

      48
    • Table 11. niDMM_CalAdjustGain Parameters

      48
    • Table 12. niDMM_CalAdjustOffset Parameters

      49
    • Table 13. niDMM_CalAdjustACFilter Parameters

      50
    • Adjusting Current Modes

      53
    • Adjusting Capacitance and Inductance (NI 4072 Only)

      56
    • Table 14. niDMM_CalAdjustLC Parameters

      57
    • Completing the Adjustment Procedures

      58
• Verification Limits

  58
  • DC Voltage

    58
    • Table 15. NI 4070/4072 DC Voltage Verification Limits

      58
  • AC Voltage

    59
    • Table 16. NI 4070/4072 AC Voltage Verification Limits

      59
  • 4-Wire Resistance

    61
    • Table 17. NI 4070/4072 4-Wire Resistance Verification Tolerances

      61
  • 2-Wire Resistance

    61
    • Table 18. NI 4070/4072 2-Wire Resistance Verification Tolerances

      61
  • DC Current

    62
    • Table 19. NI 4070/4072 DC Current Verification Limits

      62
  • AC Current

    62
    • Table 20. NI 4070/4072 AC Current Verification Limits

      62
  • Frequency

    63
    • Table 21. Frequency Limits

      63
  • Capacitance and Inductance

    63
    • Table 22. NI 4072 Capacitance and Inductance Verification Tolerances

      63
• Appendix A: Calibration Options

  64
  • Table 23. Summary of Adjustment Options

    65
  • Figure 4. Verification Procedures Flowchart

    66
  • Figure 5. Adjustment Procedures Flowchart

    67
• Where to Go for Support

  68