Zero Set Performance Test

This test applies to the following models:

  • P-Series Power Meters:

    N1911A

    N1912A

    N8262A

  • EPM-Series Power Meters:

    N1913B

    N1914B

    N1913A

    N1914A

Zero Set is defined as the amount  of residual offset error that is present following a zero operation. This offset error is caused by contamination from several sources, including circuit noise.

This test measures the effectiveness of Zero Set by performing 15 back-to-back zero operations. For P-Series meters, the test is repeated for the peak path. In each case, the standard deviation of the results is calculated and returned as the measured value.

  • Make sure there are no power sensors connected to the DUT during this test.

  • The power meter must be power-cycled on completion of this test. Failure to do so may cause the instrument to stop responding to commands sent via GPIB.

Required Equipment

None