Section 3: Functions and features
Model 2450 Interactive SourceMeter® Instrument Reference Manual
3-2
2450-901-01 Rev. B/September 2013
Automatically acquiring a relative offset value
When you automatically acquire a relative offset value, the Model 2450 does the following actions:
•
Makes a new measurement.
•
Stores the measurement as the new relative offset level.
Using the front panel:
1. Press the
FUNCTION
key and select the measurement function. The relative offset will be
applied to this function.
2. On the SETTINGS swipe screen, select the box next to
Rel
.
When the relative offset is selected, the REL annunciator to the right of the measurement is
displayed.
You can also enable the relative offset feature by selecting MENU > Filter/Math > Rel State.
Using SCPI commands:
Send the commands:
:FUNC "VOLT"
:SENSe:VOLTage:RELative:ACQuire
:SENSe:VOLT:REL:STATe ON
To acquire a relative offset value for another function, replace
VOLTage
with
CURRent
or
RESistance
.
Using TSP commands:
Send the commands:
smu.measure.func = smu.FUNC_DC_VOLTAGE
smu.measure.rel.acquire()
smu.measure.rel.enable = smu.ON
To set the relative offset for another function, replace
smu.FUNC_DC_VOLTAGE
with
smu.FUNC_DC_CURRENT
or
smu.FUNC_RESISTANCE
.
Setting a relative offset value
You can set a specific relative offset value using the remote commands. This option is not available
through the front panel.
Using SCPI commands:
Send the commands:
:SENSe:FUNCtion "VOLTage"
:SENSe:VOLTage:RELative <n>
:SENSe:VOLTage:STATe ON
Where
<n>
is the amount of the offset.
