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18
Front-panel operation
No Pulses Detected
message:
NOTE
If no pulses are detected, current will not be measured (i.e., -----
A), and the NO PULSE message will be displayed. The NO
PULSE message is displayed with dashes or the last valid pulse
reading. Dashes are shown if the pulse-current measurement
settings are not appropriate for detecting pulses. The last valid
pulse is shown if the pulse disappears while taking readings and
no change in pulse settings was made.
Pulses are not detected with the output OFF. With the output
ON, pulses will not be detected if the trigger level is too low or
too high. Adjust the trigger level as necessary and toggle back
to the display mode until pulse measurements are displayed.
If possible, the user should always use the analog output, an
oscilloscope, or a data acquisition card to determine the timing
and transient characteristics of a DUT. The waveform
information is very useful in setting up the Model 2308, reducing
setup time, and achieving maximum performance and
productivity. The voltage and current characteristics of the DUT
can be determined with a two-channel oscilloscope as shown in
Figure
9.
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