Tektronix Keithley SourceMeter 2470, Reference Manual

Page: 173 / 995

2470 High Voltage SourceMeter Instrument Reference Manual Section 4: Sourcing and measuring
2470-901-01 Rev. A /
May
2019 4-51
Reciprocal (1/X)
You can set math operation to reciprocal to display the reciprocal of a reading.
The reciprocal is 1/X, where X is the reading. If relative offset is on, the 1/X calculation uses the input
signal with the relative offset applied.
Example:
Assume the normal displayed reading is 002.5000 Ω. The reciprocal of resistance is conductance.
When the reciprocal math function is enabled, the following conductance reading is displayed:
0.400000
When the reciprocal math operation is active, the unit of measure for the front-panel readings is 1/x
and the MATH indicator is displayed to the right of the measurement. You cannot change this units
designator.
Setting percent math operations
From the front panel:
1. Press the FUNCTION key and select the measure function.
2. Press the MENU key.
3. Under Measure, select Calculations .
4. Set Math to On .
5. Select Config .
6. For Math Format, select Percent .
7. For Zero Reference, select the percent reference.
8. Select OK .
9. Press the HOME key to view the measurement with the percent math format applied.
Over a remote interface:
•
SCPI commands: Refer to :CALCulate[1]:<function>:MATH:FORMat (on page 12-10)
and :CALCulate[1]:<function>:MATH:PERCent (on page 12-14).
•
TSP commands: Refer to smu.measure.math.format (on page 14-135) and
smu.measure.math.percent (on page 14-138).