Keithley SourceMeter 2600 Series Reference Manual page 158

4-22 Basic Operation
Power measurements
Power calculations
Power readings are calculated from the sourced and measured current or voltage
as follows:
Where:
Basic power measurement procedure
Perform the following steps to perform power measurements. The following
procedure assumes that the SourceMeter is already connected to the DUT as
explained in
WARNING
1.
2.
3.
4.
5.
6.
2600S-901-01 Rev. A / May 2006
×
P = V I
P is the calculated power
V is the sourced or measured voltage
I is the measured or sourced current
Section 12.
Hazardous voltages may be present on the output and guard
terminals. To prevent electrical shock that could cause injury
or death, NEVER make or break connections to the Series 2600
while the output is on. Power off the equipment from the front
panel or disconnect the main power cord from the rear of the
SourceMeter before handling cables connected to the outputs.
Putting the equipment into standby does not guarantee the
outputs are not powered if a hardware or software fault occurs.
For the Model 2602/2612, press the DISPLAY key to select the single-
channel display mode.
Set source function and value. Press SRC to select the voltage or current
source function as required, then set the output voltage or current to the
desired value. See Step 1 of
described earlier in this section.
Press the LIMIT key, and set the voltage or current limit high enough for the
expected voltage or current across the DUT to be measured. See Step 2 of
"Front panel source-measure
Press the MEAS or MODE key to display power.
Turn on the output, then note the reading on the display. If necessary,
press the TRIG key to display continuous readings.
Turn off the output when finished.
Return to
Series 2600 System SourceMeters Reference Manual
"Front panel source-measure
procedure".
Section 4 topics
procedure"