User Manual

11. Sample status indicate: “RUN” for sampling and wait for trigger, “TRIG” for trigger detected and wait
for sample finished. “STOP” for sampling finished.
12. Value indicate current time base.
13. Info windows: different operation display different info.
14. Value display current filter modulus setting.
15. Value display current sample rate setting.
16. Two purple lines for cursor 1 and cursor 2 in cursor measurement
17. Percentage value indicates trigger position for next sampling in storage area.
18. Red square indicates the current sampling data position in storage area.
19. Red scale line indicates the time base width in sampling data display area and totally 4.8 divisions. The
width between two long scale lines is 1 division and between short scale lines are 0.1 divisions.
14. How to acquire data
When you start to acquire LA begins sampling data from the probes. Then each time clock occurs the data will
be sampled.
Then sampled data is sent to trigger function block and store in main memory. The trigger program checks
specific events with the sampled data and take specific action. The trigger program can check events as rising
edge, data values, and data ranges etc. LA module enables a post trigger delay counter when trigger reach
specified value and to allow post trigger portion of the acquisition memory to fill before data acquisition stops.
Press “F” to get into data acquisition mode after finish setting for trigger and sampling. Then running status
display as “RUN” and running status display “TRIG” when detected trigger signal and display “STOP” when
data acquisition finished. Then you can start to analyze data. Data acquisition can be stopped by press “F”
again during the process.
Note:
When running status display as “RUN”, “TRIG” during data acquiring process, only "F" key
for operate and other keys or knobs are idle. Only till status display as "STOP" then others
operations are working.
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