B+K precision 4030 Manuel utilisateur
4.4 TROUBLESHOOTING
- Using Manual Trigger
In order to use the manual trigger, you must have the "Rate" switch in the 10M/100nS position. This is the only way to access the manual trigger
function. If you set the Rate switch to the 10M position and the "Width" switch to the 50mS and the "Mode" switch to manual trigger, then set
the volt/division switch on your O-Scope to 2V or 5V and your time/division respectively at 50mS. When you push the manual trigger you will see
a 50mS pulse (one division horizontally). You may have to push it a couple of times because sometimes the trigger pulses off the screen. To
verify that the pulse is actually triggering you can hook the unit up to a counter that has a "Total" feature. Every time you push the trigger the
counter will count 1 pulse. If you change your volts/division switch to 500mS and leave all the other settings the same as above, you will see the
pulses very clearly.
To continue viewing the trigger, make sure that the "Width" switch and the time/division switch on your O-Scope match. There will come a point
where the trigger is too fast for your eye to view it using an analog scope. If you leave the time/division at 500mS or 50mS you will be able to
view faster pulses but it will be a very dim and quick dot and you will have to look closely to see it; but once again, verify the pulse by the
counter. It should go up 1 every time you push the button.
Autres manuels pour 4030
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