7-2
Relative and Math
Relative
The rel (relative) feature can be used to null offsets or subtract a baseline reading from
present and future readings. With REL enabled, subsequent readings will be the difference
between the actual input value and the rel value as follows:
Displayed Reading = Actual Input - Rel Value
Once a rel value is established for a measurement function, the value is the same for all
ranges. For example, if 5V is set as a rel value on the 20V range, the rel value is also 5V on the
2V and 200mV ranges.
Selecting a range that cannot accommodate the rel value does not cause an overflow condi-
tion, but it also does not increase the maximum allowable input for that range. For example, on
20V range, the SourceMeter still overflows for a >21.1V input.
NOTE
When rel is enabled, the REL annunciator turns on. Changing measurement func-
tions disables rel.
Front panel rel
Enabling and disabling rel
Rel can be used to null out zero offsets or to establish a zero baseline by pressing the REL
key. The reading (which becomes the rel value) is subtracted from itself. As a result, a zero
reading is displayed. Pressing REL a second time disables rel.
De
fi
ning a rel value
A unique rel value can be established for the selected measurement function from the front
panel as follows:
1.
Press CONFIG and then REL. The present rel value will be displayed.
2.
Set the desired rel value. See Section 1,
Rules to navigate menus
for details.
3.
With the desired rel value displayed, press ENTER. The SourceMeter will return to the
normal source-measure display with rel enabled. The reading will reflect the defined rel
value.
Содержание 6430
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Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
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Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
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