Agilent Technologies 5975T LTM GC/MSD, Troubleshooting And Maintenance Manual

Page: 113 / 270

General Maintenance
10
Troubleshooting and Maintenance Guide 113
The oil in the standard foreline pump also collect traces of the
samples being analyzed. All used pump fluid should be
considered hazardous and handled accordingly. Dispose of used
fluid correctly, as specified by your local regulations.
Electrostatic discharge
All of the printed circuit boards in the instrument contain
components that can be damaged by electrostatic discharge
(ESD). Do not handle or touch these boards unless absolutely
necessary. In addition, wires, contacts, and cables can conduct
ESD to the electronics boards to which they are connected. This
is especially true of the mass filter (quadrupole) contact wires
which can carry ESD to sensitive components on the side board.
ESD damage may not cause immediate failure but it will
gradually degrade the performance and stability of your MSD.
When you work on or near printed circuit boards or when you
work on components with wires, contacts, or cables connected
to printed circuit boards, always use a grounded antistatic wrist
strap and take other antistatic precautions. The wrist strap
should be connected to a known good earth ground. If that is
not possible, it should be connected to a conductive (metal) part
of the assembly being worked on, but
not to electronic
components, exposed wires or traces, or pins on connectors.
Take extra precautions, such as a grounded antistatic mat, if
you must work on components or assemblies that have been
removed from the MSD. This includes the analyzer.
WA R N I N G
When replacing pump fluid, use appropriate chemical-resistant
gloves and safety glasses. Avoid all contact with the fluid.
C A U T I O N
To be effective, an antistatic wrist strap must fit snugly (not tight). A
loose strap provides little or no protection.
Antistatic precautions are not 100% effective. Handle electronic
circuit boards as little as possible and then only by the edges. Never
touch components, exposed traces, or pins on connectors and
cables.