Keithley SourceMeter 2400, User Manual

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11-26 Triggering 2400 Series SourceMeter
®
User’s Manual
Switching mainframe setup
1. Restore bench defaults:
Press the MENU key, select SAVESETUP, and then press ENTER. From the
SAVESETUP menu, select RESET, then press ENTER. Press ENTER to confirm
the action. Press ENTER to return to the SETUP MENU. Press EXIT to leave the
SETUP MENU. Press EXIT to leave the MAIN MENU.
2. Setup scan list: 1!1 - 1!10:
Press the SCAN LIST key. Press 1, 1 - 1, 1, 0, then press the ENTER key.
3. Set the number of scans to 1:
Press the SCAN key, select SCAN-CONTROL, and then press ENTER. From the
SCAN CONTROL menu, select NUMBER-OF-SCANS, then press ENTER.
Select ENTER-SCAN-COUNT, then press ENTER. Set the count to 1, then press
ENTER. Press the EXIT key to return to the CONFIGURE SCAN menu.
4. Set channel spacing to trigger-link:
Select CHAN-CONTROL from the CONFIGURE SCAN menu, then press
ENTER. Select CHANNEL-SPACING from the CHANNEL CONTROL menu,
then press ENTER. Select TRIGLINK, then press ENTER. Select ASYNCHRO-
NOUS, then press ENTER. Press ENTER, ENTER, then EXIT, EXIT, EXIT to
leave the CONFIGURE SCAN menu.
Operation
The basic operating procedure for this example is as follows:
1. To store the readings in the SourceMeter buffer, press STORE and set the buffer
size for 10. When ENTER is pressed, the asterisk (*) annunciator will turn on to
indicate the buffer is enabled. (See
Section 9 , “ Data Store ,” for details.)
2. Turn the SourceMeter OUTPUT ON. The SourceMeter waits for an external trig-
ger from the switching mainframe.
3. Press STEP on the Model 7001/7002 to take it out of idle and start the scan. The
scanner’s output pulse triggers the SourceMeter to take a reading and store it. The
SourceMeter then sends a trigger pulse to the switching mainframe to close the
next channel. This process continues until all 10 channels are scanned, measured,
and stored.
Details of this testing process are explained in the following paragraphs and are referenced
to the operation model shown in
Figure 11-11 .
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