Exchanging Internal Parts - Agilent Technologies 1200 Series Reference Manual

4 Repairing the Vacuum Degasser

Exchanging Internal Parts

The following procedures require opening the main cover of the degasser. Always
WA R N I N G
ensure the degasser is disconnected from the line power when the main cover is
removed. The security lever at the power input socket prevents the degasser cover
from being taken off when line power is still connected.
To disconnect the instrument from line, unplug the power cord. The power supply
WA R N I N G
still uses some power, even if the switch on the front panel is turned off.
When working with solvents please observe appropriate safety procedures (for
WA R N I N G
example. goggles, safety gloves and protective clothing) as described in the
material handling and safety data sheet by the solvent vendor, especially when
using toxic or hazardous solvents.
The electronics of the degasser will not allow operation of the degasser when the top cover
N O T E
and the top foam are removed. A safety light switch on the main board will inhibit the
operation of the fan immediately. Voltages for the other electronic components will be
turned off after 30 seconds. The status lamp will light up red and an error will be logged into
the logbook of the user interface. Always operate the degasser with the top covers in place.
Electronic boards and components are sensitive to electronic discharge (ESD). In order
C A U T I O N
to prevent damage always use an ESD protection (for example, the ESD wrist strap
from the accessory kit) when handling electronic boards and components, see
the ESD Strap"
54
on page 16
1200 Series VD Reference Manual
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