Agilent Technologies 4395A, Service Manual

Page: 163 / 343

5
Adjustments
Introduction
This section describ es the Adjustmen ts required for the 4395A to op erate within its
sp ecications. These adjustmen ts should b e p erformed along with p erio dic maintenance
to k eep the 4395A in optimum op erating condition. The recommended calibration p erio d
is 12 mon ths. If prop er p erformance cannot b e ac hiev ed after the Adjustmen ts, see the
T roublesho oting c hapter.
Note
T o ensure prop er results and correct instrumen t op eration, Agilent
T ec hnologies suggests a 30 min ute w arm-up and stabilization p erio d b efore
p erforming an y of the following Adjustmen ts.
Safety Considerations
This man ual con tains NOTEs, CA UTIONs, and W ARNINGs whic h m ust b e follow ed to
ensure the safety of the op erator and to k eep the instrumen t in a safe and serviceable
condition. The adjustmen ts m ust b e p erformed b y qualied service p ersonnel.
W arning
Any interruption of the protectiv e ground conductor (inside or outside the
instrument) or disconnection of the protectiv e ground terminal can mak e the
instrument dangerous. Intentional interruption of the protectiv e ground system
for any reason is prohibited.
Remem b er that the capacitors in the analyzer can remain c harged for sev eral min utes, ev en
through y ou ha v e turned the analyzer OFF and unplugged it.
W arning
The adjustments described in this chapter are performed with po w er applied
and the protectiv e co v ers remo v ed. Dangerous v oltage lev els exist at many
points and can result in serious personal injury or death if y ou come into
contact with them.
Adjustments 5-1