General Maintenance 4
Troubleshooting and Maintenance Manual 71
The fluid in the foreline pump also collects traces of the samples being
analyzed. All used pump fluid should be considered hazardous and handled
accordingly. Dispose of used fluid as specified by your local regulations.
Electrostatic discharge
All of the printed circuit boards in the MS 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 quadrupole board. ESD damage may not
cause immediate failure, but it will gradually degrade the performance and
stability of your MS.
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 MS. This
includes the analyzer.
When replacing pump fluid, use appropriate chemical-resistant gloves and safety
glasses. Avoid all contact with the fluid.
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.
To Next Page
Loading...
Need help?
General
