Specifications

2 Performance Verification
14 Series N6700 Service Guide
Test category = performance
This test measures the change in output voltage resulting from a
change in output current from full load to no load.
1 Turn off the power system and connect a DMM and an electronic
load (see Test Setup A).
2 Turn on the power system and program the instrument settings
as described in the test record form under “CV Load Effect”.
3 Set the electronic load for the output channel’s current as
described in the test record form under “CV Load Effect”. The
output status should be “CV”. If it isn’t, adjust the load so that the
output current drops slightly.
4 Record the output voltage reading from the DMM.
5 Open the load. Record the voltage reading from the DMM again.
The difference between the DMM readings in steps 4 and 5 is the
load effect, which should not exceed the value listed in the test
record form for the appropriate model under “CV Load Effect”.
6 For models N678xA SMU only. Repeat steps 2 through 5 for the 6
V range.
CV Source Effect
Test category = performance
This test measures the change in output voltage that results from a
change in AC line voltage from the minimum to maximum value
within the line voltage specifications.
1 Turn off the power system and connect the ac power line through
a variable voltage transformer or an AC source.
2 Connect a DMM and an electronic load (see Test Setup A). Set the
transformer or AC source to nominal line voltage.
3 Turn on the power system and program the instrument settings
as described in the test record form under “CV Source Effect”.
4 Set the electronic load for the output channel’s current as
described in the test record form under “CV Source Effect”. The
output status should be “CV”. If it isn’t, adjust the load so that the
output current drops slightly.
5 Adjust the AC input to the lowest rated line voltage (86 VAC).
6 Record the output voltage reading from the DMM.
7 Adjust the AC input to the highest rated line voltage (264 VAC).
8 Record the output voltage reading on the DMM. The difference
between the DMM reading in steps 6 and 8 is the source effect,
which should not exceed the value listed in the test record form
for the appropriate model under “CV Source Effect”.