Users Manual
Model 3600
www.globalspecialties.com
Page 24
Store Delay
The sampling process can stop automatically after the trigger process
finishes. But in some applications, we want to delay a period of
storage time of the sampling data in order to analyze some signals
characteristics after trigger events. So a delay counter is set in this
instrument, after the trigger process finishes, the sampling process still
runs, meanwhile clears the delay counter and counts for sampling clock,
the count value adds one each clock cycle, the sample process stops
when the count value reaches the setting value of the delay counter.
The “store delay” can be set with numbers in Decimalization, the
setting range is 1~260000, the unit is the number of sample cycles; the
default setting of storage delay is 600 sample cycles.
Because both the default setting of the start select switch and the
trigger select switch are “connected”, we don’t need to set the trigger
process, just press
【
Single
】
key, the instrument doesn’t check, but
directly starts sampling and makes storage delay, in other words, the
sampling process stops automatically after sampling 600 clock cycles
randomly.
Manually Stop Sampling Process
If the start select switch is disconnected, but the start conditions are
set unsuitably, the sampling process will not start. Or if set trigger
select switch is disconnected, but trigger conditions are set unsuitably,
the trigger process can not stop. Under these two conditions, the
instrument is in the detecting mode continuously until the suitable
signals appear and displays “sample is processing, press any key to
stop”. To release from this state, press any key to stop the sampling
process manually. Then one must study the tested signals carefully, reset
the trigger process to make sure the sampling process will run normally.
Trigger Cursor
It is possible there may be one or more vertical red lines in the timing
waveforms interface. These are trigger cursors. The positions of the
cursors are the sampling data points that satisfy the setting of the
trigger conditions.
The parameter value of the trigger cursor is on the left bottom of the
waveform frame in the first row. The six numbers on the left of the
parameter are the addresses in Dec of the data the cursor indicates.
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