Fluke 5820A, Operator'S Manual

Page: 73 / 272

Front Panel Operation
Calibrating the Pulse and Frequency Response on an Oscilloscope
4
4-15
3. Adjust the oscilloscope as necessary. The waveform should be similar to the one
shown below, with the gain at exactly the amount specified for the calibration
settings for your oscilloscope. This example shows the gain at 30 mV to be 6
divisions, at 5 mV per division.
oq015f.bmp
4. Change the voltage to the next value recommended for calibrating your oscilloscope
model, and repeat this procedure at the new voltage level, verifying the gain is
correct according to the specifications in your manual.
5. Repeat the procedure for each channel.
4-27. Calibrating the Pulse and Frequency Response on an
Oscilloscope
Calibrate the pulse response with a square-wave signal that has a fast leading edge rise-
time. Using this signal, you adjust the oscilloscope as necessary until it meets its
particular specifications for rise time and pulse aberrations.
Following pulse verification, check the frequency response by applying a leveled sine
wave and acquiring a frequency reading at the -3 dB point, when the amplitude drops
approximately 30 %.
4-28. The Edge Function
Use the EDGE function for calibrating the pulse response for your oscilloscope. To
access the EDGE menu, press
v
or press the softkey under MODE until “edge”
appears.