5
Adjustments
Introduction
This section describes the Adjustments required for the HP 4395A to operate within its
specications. These adjustments should be performed along with periodic maintenance to
keep the HP 4395A in optimum operating condition. The recommended calibration period
is 12 months. If proper performance cannot be achieved after the Adjustments, see the
Troubleshooting chapter.
Note
To ensure proper results and correct instrument operation, Hewlett-Packard
suggests a 30 minute warm-up and stabilization period before performing any
of the following Adjustments.
Safety Considerations
This manual contains NOTEs,CAUTIONs, and WARNINGs which must be followed to ensure
the safety of the operator and to keep the instrument in a safe and serviceable condition. The
adjustments must be performed by qualied service personnel.
Warning
Any interruption of the protective ground conductor (inside or outside
the instrument) or disconnection of the protective ground terminal can
make the instrument dangerous. Intentional interruption of the protective
ground system for any reason is prohibited.
Remember that the capacitors in the analyzer can remain charged for several minutes, even
through you have turned the analyzer OFF and unplugged it.
Warning
The adjustments described in this chapter are performed with power
applied and the protective covers removed. Dangerous voltage levels exist
at many points and can result in serious personal injury or death if you
come into contact with them.
Adjustments 5-1
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