Keithley 2790, Справочное руководство

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1-26 Model 2790 SourceMeter
®
Switch System Reference Manual
Exercise 1 — Basic DMM measurements
The exercise in Table 1-6 measures 2-wire resistance on the 100
Ω
range and stores 15
readings in the buffer.
Table 1-6
Exercise 1—Measure resistance - store readings in buffer
Front panel operation
Command
sequence
1 For front panel operation, proceed to step 2.
For remote programming, clear the buffer
1
:
TRAC:CLE
2 Restore defaults
2
:
Press SHIFT > press SETUP > select RESTORE: FACT.
*RST
3 Select 2-wire resistance function:
Press
Ω
2.
FUNC 'RES'
4 Select 100
Ω
range:
Press RANGE to display “RANGE: 100
Ω
”.
RES:RANG 100
6 Store 15 readings in buffer
3
:
Press STORE > set for 000015 RDGS > press ENTER.
SAMP:COUN 15
READ?
7 Recall buffer readings
4
:
Press RECALL > use edit keys to display readings. Press EXIT to exit
recall mode.
TRAC:DATA?
1. To avoid problems with remote programming, it is good practice to routinely clear the buffer (
TRAC:CLE
) at the begin-
ning of a program that performs multiple measurements (
SAMP:COUN >1
). Restoring *RST or FACTory defaults does
not clear the buffer.
2. FACTory defaults place the instrument in a continuous measurement mode. *RST places the instrument in a non-continuous
measurement mode.
3. READ? triggers and returns 15 readings. These 15 readings are automatically stored in the buffer. See Exercise 5 and 6 for
more information on the READ? command.
4. Statistics for buffer readings are also stored in the buffer. For remote programming,
TRAC:DATA?
only returns the read-
ings that were stored. It does not return buffer statistics.
CALC2
commands are used to calculate and return buffer statis-
tics (see Section 6 for details).