Connect The Logic Analyzer; Acquire The Data - HP 1660E Series Service Manual

Testing Performance
To teslthe time measurement accuracy (oscilloscope)
Connect the logic analyzer
Using the N-to-BNC adapter and the BNC cabie, connect the signal generator output
to the channell input of the oscilloscope.
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01660E52
Acquire the data
1 Determine short time period accuracy.
a Press the blue shift key, then press Run. If the waveform
is
clipping, reduce the signal
generator output voltage level until the waveform no longer clips. After
approximately two minutes, press the Stop key.
b In the Statistics field, check to see that the Mean X - 0 field
is
approximately 5.500 ns.
Check that both the Min X - 0 and the Max X - 0 are within 150 ps of the Mean X -
o.
Record the results in the performance test record.
2 Determine longer time period accuracy.
a Press Select twice to call up the T Markers Auto menu.
b Select the X marker Set On field. At the pop up menu, select Manual.
c Move the cursor to the 0 marker Occur field. Press the 1 key, then press Select.
d Press Done.
e Press the Display key. Select the Mode field, then select Average. Move the cursor to
the Average # field. Type 8 on the front-panel keyboard, then press Done.
r
Move the cursor to the Delay field. Type 99 on the front-panel keyboard, and use the
left and right cursor-control keys to select "ns." Press done.
g Press the Marker key. Press the blue shift key, then press the Run key. After
approximately two minutes, press the Stop key.
h In the Statistics field, check to see that the Mean X - 0 field is approximately 99 ns.
Check that both the Min X - 0 and the Max X - 0 are within 150 ps of the Mean X -
o.
Record the results in the performance test record.
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