Keithley SourceMeter 2600 Series Reference Manual page 343

Series 2600 System SourceMeters Reference Manual
smuX.measure.autorangeY
Attribute Measure auto range setting.
Usage
autorange = smuX.measure.autorangeY
smuX.measure.autorangeY = autorange
Set
autorange
or
0
or
1
• This attribute indicates the measurement auto range state. Its value will be
Remarks
smuX.AUTORANGE_OFF
smuX.AUTORANGE_ON
• Setting this attribute to
fixed range used will be the range the SMU measure circuit was currently using.
• Setting this attribute to
range mode. It will remain on its present measure range until the next measurement
is requested.
Details See "Range" in
Also see smuX.measure.rangeY
Example Enables voltage measure autoranging for SMU A:
smua.measure.autorangev = smua.AUTORANGE_ON
smuX.measure.autozero
Attribute Behavior of the SMU's A/D internal reference measurements (autozero).
Usage
azmode = smuX.measure.autozero
smuX.measure.autozero = azmode
Set azmode to be one of the following values:
0 or smuX.AUTOZERO_OFF
1 or smuX.AUTOZERO_ONCE
2 or smuX.AUTOZERO_AUTO
X = SMU channel (a or b)
Y = SMU measure function (v or i) where v = voltage, i = current
to one of the following values:
smuX.AUTORANGE_OFF
smuX.AUTORANGE_ON
when the SMU measure circuit is on a fixed range and
when it is in auto range mode.
smuX.AUTORANGE_OFF
smuX.AUTORANGE_ON
Section 6.
X = SMU channel (a or b)
Return to
Instrument Control Library 12-69
-- Reads measure auto range.
-- Writes measure auto range.
Disables measure auto range.
Enables measure auto range.
puts the SMU on a fixed range. The
puts the SMU measure circuit into auto
-- Reads autozero.
-- Writes autozero.
Autozero disabled.
Performs autozero once, then disables autozero.
Automatic checking of reference and zero
measurements. An autozero is performed when
needed.
Section 12 topics 2600S-901-01 Rev. A / May 2006