Operations and Features
2
Keysight U3401A User’s and Service Guide
51
Comp
The Comp (compare) operation allows you to perform pass/fail testing against
specified upper and lower limits. You can set the upper and lower limits to any
value between 0 and ±100% of the highest range for the present operation.
Figure 2-5
Typical Comp operation display
When enabled, the actual readings are shown in primary display and the
comparison results such as
HI
,
LO
or
PASS
is shown in secondary display.
– You should specify the upper limit to always be a more positive number than
the lower limit. The initial factory setting for each limit is 0.
– The secondary display shows
PASS
when readings are within the specified
limits. The secondary display shows
HI
when the reading is outside the high
limit and
LO
when the reading is outside the low limit.
– When the beeper is ON (see
on page 59), the beeper
beeps three tones on the transition from
PASS
to
HI
or
LO
. When transitioning
from
HI
or
LO
to
PASS,
it will only beep once.
– Press
to enable Comp operation.
