5-18 Pulse Mode Operation (Model 2430 only) 2400 Series SourceMeter
®
User’s Manual
Offset-compensated ohms
From the front panel there are two methods to perform offset-compensated ohms measure-
ments. For one method, which is enabled from the CONFIG OHMS menu, the 2-point
measurement process is performed at a user-set source level, and at 0V or 0A. This
method is not available while in the Pulse Mode. The other method, which is a math func-
tion (FCTN), the user sets both source levels for the 2-point measurement process. This
method is valid in the Pulse Mode. See Section 8, “Math operations,” for details.
For remote operation, offset-compensated ohms, as a math function (:CALCulate1 sub-
system), can be performed in the Pulse Mode. From the :SENSe subsystem, offset-
compensated ohms cannot be performed. The [:SENSe]:RESistance:OCOMpensated <b>
command (which enables/disables offset-compensated ohms) causes error +831: Invalid in
Pulse Mode.
Source delay
In the DC Mode, the source delay is a delay that occurs between the source and measure
operations. The delay period can be manually set or auto delay can be used. With auto
delay, the delay is automatically set according to function and range. See Section 3,
“Operation considerations,” and “Source delay,” for details.
For the Pulse Mode, source delay is not used. For front panel operation, the menu items to
set source DELAY and select AUTO DELAY are replaced by menu items to set pulse
DELAY and PULSE WIDTH when the Pulse Mode is selected. Therefore, you cannot set
source delay while in the Pulse Mode.
For remote operation, you can set the source delay, however the setting will be ignored in
the Pulse Mode. The ignored commands for source delay include :SOURce:DELay <n>
and :SOURce:DELay:AUTO <b>.
Trigger delay
In the DC Mode, the trigger delay is a user set delay that occurs between the trigger and
pulse operations. In the Pulse Mode, trigger delay is not used. You can set the trigger delay
while in the Pulse Mode, but it will not be used until you go back into the DC Mode. See
Section 11 for details on triggering. For remote operation, the delay set by
:TRIGger:DELay <n> is ignored in the Pulse Mode.
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