7-6
Relative and Math
Percent deviation
This calculation provides the percent deviation between the normal display reading and the
user set reference value:
where:
X is the normal display measurement reading (V, I, or
Ω
).
Y is the reference value.
When prompted to enter the reference value (Y), you can enter the value or have the
SourceMeter acquire the reference value. To acquire the reference value, turn on the output and
press AUTO. The SourceMeter will perform a measurement and display that reading as the ref-
erence.
Limit Testing — After the reference value is entered, you will be prompted to enter high and
low tolerances (in %) for the reference value. These tolerances set the high and low limits for
Limit 2 test.
For example, perform the following steps to test 1k
Ω
, 1% resistors:
1.
Select the
Ω
function, select the 1k
Ω
measurement range (or use AUTO range), and
connect the resistor to be tested to the SourceMeter.
2.
Configure the percent deviation math function:
a.
Press CONFIG, press FCTN, then select %DEV.
b.
Set the reference (REF) value to +1.000000 k, then press ENTER.
c.
Set the high tolerance (HI TOL) to 01.00%, then press ENTER.
d.
Set the low tolerance (LO TOL) to 01.00%, then press ENTER.
3.
Turn the output on. The measured reading of the resistor is displayed.
4.
Press FCTN to select the percent deviation math function. The actual tolerance of the
resistor will be displayed along with the result of the limit test. If the resistor reading is
within ±1% of 1k
Ω
, the “PASS” test message is displayed. If outside the 1% tolerance,
the “FAIL” message is displayed.
5.
When finished, turn the ouput off.
NOTE
The reading format is fixed at ±XXX.XXX%
NOTE
Limit testing can be disabled by pressing the LIMIT key.
%Deviation
X Y
–
(
)
Y
-------------------
100
×
=
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 ...
Страница 498: ...B 10 Status and Error Messages ...
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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