Keithley 2651A Reference Manual page 25

Model 2651A High Power System SourceMeter® Instrument Reference Manual
2. Setup, performance control, special operation, and numbers
Source-measure setup
SRC
MEAS
LIMIT
MODE
Performance control
DIGITS
SPEED
REL
FILTER
Special operation
LOAD
RUN
STORE
RECALL
TRIG
MENU
EXIT
ENTER
Numbers
Number keys
2651A-901-01 Rev. A / March 2011
Selects the source function (V or A) and places the cursor in the source field for editing.
Cycles through measure functions (V, A, Ω, or W).
Places the cursor in the compliance limit field for editing. Also selects the limit value to edit (V, A, or
W).
Selects a meter mode (I-METER, V-METER, OHM-METER, or WATT-METER).
Cycles through display resolution (4-1/2, 5-1/2, or 6-1/2 digits).
Sets the measurement speed (FAST, MEDium, NORMAL, HI-ACCURACY, or OTHER). Setting the
speed selects either the fast or integrating A/D converter. When FAST is selected, the fast A/D
converter is used. When the integrating A/D converter is selected, the measurement speed and
accuracy are set by controlling the measurement aperture. Also see
Controls relative measurements, which allows a baseline value to be subtracted from a reading.
Enables or disables the digital filter. You can use this filter to reduce reading noise.
Loads test for execution (FACTORY, USER, or SCRIPTS).
Runs the last selected factory or user-defined tests.
Accesses reading buffers and takes readings. TAKE_READINGS: Sets number of readings to make
and also takes and stores readings. SAVE: Stores readings in one of two internal buffers
(SMUA_BUFFER1 or SMUA_BUFFER2), or to a user-installed flash drive (USB1) in CSV or XML
format. Readings include measurements, source values, and time stamp values, if configured.
Recalls information (DATA or STATISTICS) stored in either CHANA-BUFF1 or CHANA-BUFF2:
DATA includes stored readings, and if configured, source values and timestamp values;
STATISTICS includes MEAN, STD DEV, SAMPLE SIZE, MINIMUM, MAXIMUM, PK-PK.
Triggers readings.
Accesses the main menu (on page 2-16). The main menu can be used to configure many facets of
operation.
Cancels selection and backs out of the menu structure. Also used as a LOCAL key to take the unit
out of remote operation.
Accepts selection and moves to the next choice or exits the menu.
When enabled, the number keys (0-9, +/-, 0000) allow direct numeric entry in the EDIT mode. Press
the navigation wheel to enter EDIT mode. For more information, see
20).
Section 2: General operation
Speed (on page 2-71).
Setting a value (on page 2-
2-3