Fluke PM-3370B Instrukcja Użytkownika Strona 175

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COMMAND REFERENCE 4 - 75
Note: Because the READ? query leaves instrument settings unaffected, it can
very well be used as follows to read a measured value within a cursor
limited acquisition area:
- Press the CURSORS key on the front panel to enable the use of
cursors.
- Set the cursor area via the CURSORS softkey menu.
- Send
READ:PTPeak? Queries for Peak-To-Peak measurement
within the previously set cursor area.
- Read
<peak-to-peak voltage>
- Send
FETCh:AC? Fetches AC-RMS value of latest
acquisition.
- Read
<AC-RMS voltage>
Example 1:
Send
CONFigure:VOLTage:AC 0.6,(@2) Configures AC-RMS channel 2,
expected voltage 600 mV.
Send
SENSe:AVERage ON Enables averaging
Send
READ:AC? (@2) Initiates + fetches AC-RMS
value.
Read
<averaged AC-RMS value>
Send
READ:AC? (@2) Initiates + fetches AC-RMS
value.
Read
<averaged AC-RMS value>
Example 2:
Send
CONFigure:VOLTage:RISE:TIME (0.5),20,80,1E-2,(@2)
’Configures the rise time, expected voltage 0.5V,
’LOW ref. = 20%,
’HIGH ref. = 80%, expected time 0.01 seconds, channel 2.
Send INPut2:COUPling AC Channel 2 becomes AC
coupled.
Send
READ:RISE:TIME? (@2) Initiates + fetches the rise time
of the signal on channel 2.
Read
<the measured rise time>
Send
FETCh:FALL:TIME? (@2) Fetches the fall time of the
signal on channel 2.
Read
<the measured fall time>
Errors
Executing READ? when TRIGger:SOURce BUS is selected, generates execution
error -214, "Trigger deadlock".
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