Series 2600 System SourceMeters Reference Manual Instrument Control Library 12-93
Return to Section 12 topics 2600S-901-01 Rev. A / May 2006
smuX.source.rangeY
X = SMU channel (a or b)
Y = SMU measure function (v or i) where v = voltage, i = current
Attribute Source range.
Usage
rangeval = smuX.source.rangeY -- Reads source range.
smuX.source.rangeY = rangeval -- Writes source range.
rangeval The expected voltage or current to be sourced.
Remarks
• Reading this attribute returns the positive full-scale value of the source range the
SMU is currently using. Assigning to this attribute sets the SMU on a fixed range
large enough to source the given value. The instrument will select the best range for
sourcing a value of
rangeval.
• smuX.source.rangeX is primarily intended to eliminate the time required by the
automatic range selection performed by a sourcing instrument. Because selecting a
fixed range will prevent auto-ranging, an over-range condition can occur, for
example, sourcing 10.0V on the Model 2601/2602 6.0V range, or sourcing 5.0V on
the Model 2611/2612 2.0V range.
Details See “Range” in Section 6.
Also see smuX.source.autorangeY
Example
Selects 1V source range for Model 2601/2602 SMU A:
smua.source.rangev = 1
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