Offset Compensation - R&S RT-ZD40 Mode D'emploi

®
R&S RT-ZD40
Measurement:
7.4

Offset Compensation

The offset compensation is checked.
Test setup:
R&S RTO settings:
Measurement:
User Manual 1410.5363.02 ─ 03
●
Set the voltage on the DC voltage source so that the DMM displays
exactly +5.000 V
●
Check displayed values in the "Measurement Results" box:
Mean: +5 V ± 250 mV
ProbeMeter: +5 V ± 14 mV
●
Repeat procedure for −5.000 V
●
Check again the measurement results:
Mean –5 V ± 250 mV
ProbeMeter: -5 V ± 14 mV
Same as with DC accuracy
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Horizontal scale = 10 µs / div
●
Vertical scale = 1.6 V / div
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Trigger source = Ch1, Trigger mode = Auto, Run cont
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ACQUISITION key > Decimation = 'High res' > Waveform Arithmet-
ics = 'Average' > Average Count = 16
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"Meas" menu > Setup > Source = 'Ch1' > Main Measurement =
'Mean' > State = 'on'
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CH1 key > Offset = 0 V, Position = 0 div
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"Vertical" menu > Probe Setup > Ch1 > ProbeMeter = 'on' > Micro
button action = 'Set offset to mean'
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Set the voltage on the DC voltage source so that the DMM displays
exactly +5.000 V.
●
Press the micro button: The "Offset to mean" function of the probe
automatically compensates the applied DC voltage.
●
The oscilloscope waveform should now be on the horizontal center-
line.
●
Switch measurement range:
Vertical scale = 10 mV / div
●
Check displayed values in the "Measurement Results" box:
Mean: +5 V ± 50 mV
Functional Check
Offset Compensation
50