User manual

2400 Series SourceMeter
®
User’s Manual Getting Started 1-13
Display
Display format
The SourceMeter display is used primarily to program source and compliance val-
ues and display measured readings. Annunciators, which are located along the
top of the reading/message display, indicate various states of operation, as cov-
ered previously in “Front panel summary.”
On power-up, the top (primary) display is used for measurements when the output
is on (with the output off, “OFF” is displayed). The bottom-left display is used for
the programmed source value (Vsrc or Isrc), and the bottom-right display is used
for the programmed compliance (Cmpl) limit.
Reading information can be displayed using either engineering units or scientific
notation in either fixed- or floating-point format. Use the GENERAL/NUMBERS
selection of the main MENU to select the display format, as discussed in “Menus”
later in this section.
Engineering units example: 1.23456µA
Scientific notation example: 1.23456e -6
NOTE The display may be disabled for faster operation. See “Disabling front
panel display,” page 1-24.
EDIT key
The SourceMeter must be in the edit mode to set source and compliance values.
The edit mode is selected by pressing the EDIT key (EDIT annunciator on). The
editing cursor (flashing digit) appears for the source or compliance reading. If a
value is not edited within six seconds, the edit mode is cancelled. While in the edit
mode, the EDIT key toggles between the source value and compliance value. See
Section 3 for details on setting source and compliance values.
TOGGLE key
NOTE For the Model 2430 Pulse Mode, the TOGGLE key is disabled.
With the output on, the TOGGLE key manipulates readings on the top display and
on the bottom-left display. It has no effect on the compliance reading (Cmpl),
which is located on the bottom right. Each press of the TOGGLE key sequences
through the display options.