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Getting Started
1-15
Display
Display format
The SourceMeter display is used primarily to program source and compliance values and
display measured readings. Annunciators, which are located along the top of the reading/
message display, indicate various states of operation, as covered 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” or “ZER” is displayed). The bottom-left display is used for the pro-
grammed 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 under Menus later in this section.
Engineering units example: 1.23456µA
Scientific notation example: 1.23456e -6
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
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.
With the voltage (V) or current (I) measurement function selected, the TOGGLE key lets
you display both the current and voltage measurements at the same time. It also allows you to
toggle display positions of the source and measure readings.
With the ohms (
Ω
) measurement function selected, the ohms measurement is always dis-
played on the top display. The TOGGLE key lets you display either the programmed source
value, the current measurement, or the voltage measurement on the bottom-left display.
The TOGGLE key is also used to display statistical data on readings stored in the data store.
This function is performed from the data store RECALL mode.
NOTE
If FCTN, REL, or Limits is enabled, the TOGGLE key is disabled.
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Страница 98: ...3 20 Basic Source Measure Operation ...
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