S331L UG PN: 10580-00321 Rev. M 6-11
High Accuracy Power Meter 6-3 General Measurement Setup
Zero Failure
This message appears if the zero operation is unsuccessful. The reason
could be the presence of RF power at the input of the sensor.
Turn off the RF input to the sensor or disconnect the sensor from the
RF source and try the zero operation again.
1. Press the Calibration main menu key and then press the
Zero Sensor key.
2. When the process is complete, “Zero Status Ok” will be displayed
in the Measurement Setting Summary area.
3. Turn on the RF source of the Device Under Test. The High
Accuracy Power Meter will now display the power level of the
desired RF signal, with the noise signal subtracted out.
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