Keithley 2700, User Manual, Page: 246 / 500

Model 2700 Multimeter/Switch System User’s Manual Scanning 7-33
Scanning examples
The following scanning examples assume that the Model 7700 switching module is
installed in slot 1 of the mainframe.
Tables are used for the procedure steps to configure and run scan examples. The left side
of the table provides the front panel procedure, while the right side shows the equivalent
remote programming commands. Where appropriate, menu sequences are provided to
summarize a front panel operation or selection. For example:
SHIFT SETUP > RESTORE: FACT
For the above menu sequence, press SHIFT and then SETUP to access the menu, use the
edit keys (
, ,
Δ
, and
∇
) to display RESTORE: FACT, and then press ENTER to
select it.
External trigger scan
For this example, an external instrument is used to trigger the start of the 2-channel scan.
Trigger pulse requirements and trigger cable connections are covered in
Section 7 .
NOTE For this example, the front panel TRIG key can be used in place of an external
input trigger. Each time the TRIG key is pressed, the 2-channel scan will run.
One channel (101) measures temperature and the other channel (102) measures resistance.
The two readings are stored in the buffer. Each time the scan is run, the two readings will
be appended (added) to the buffer.
A type K thermocouple is used to measure temperature. Since the internal cold (reference)
junction of the Model 7700 is being used, the thermocouple can be connected directly to
the screw terminals of the switching module.