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Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 9: Frequently asked questions (FAQs)
2657A-901-01 Rev. B/December 2012
9-5
To save the reading buffer data:
1. From the front panel, press the
STORE
key, and then select
SAVE
.
2. Select
INTERNAL
to save to internal nonvolatile memory.
3. Select one of the following:
•
SMUA_BUFFER1
•
SMUA_BUFFER2
4. The front panel displays
Saving... This may take awhile
.
5. Press
the
EXIT (LOCAL)
key to return to the main menu.
For additional information, see
When should I change the output-off state?
Carefully consider and configure the appropriate output-off state, source, and compliance limits
before connecting the Model 2657A to a device that can deliver energy (for example, other voltage
sources, batteries, capacitors, or solar cells). Configure recommended instrument settings before
making connections to the device. Failure to consider the output-off state, source, and compliance
limits may result in damage to the instrument or to the device under test (DUT).
The Model 2657A instrument provides multiple output-off states. The multiple states are required
because different types of connected devices (or loads) require different behaviors from the Model
2657A when its output is turned off.
For example, a passive device such as a diode is not affected by a 0 V source connected across its
terminals when the output is turned off. However, connecting a 0 V source to the terminals of a
battery causes the battery to discharge. Therefore, careful selection of the proper output-off state is
important to prevent damage to devices and instruments. This is especially true when the device can
deliver energy to the Model 2657A, such as a battery or capacitor. In these situations, you should use
an output-off state that isolates the instrument from the device by either setting
smu
X
.source.offfunc = smu
X
.OUTPUT_DCAMPS
or
smu
X
.source.offfunc =
smu
X
.OUTPUT_DCVOLTS
, as applicable.
How do I make contact check measurements?
For information about making contact check measurements, see
(on
page 2-37) and
CAUTION
Содержание 2657A
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