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A Primer on Electro-Static Discharge Model T101 Instruction Manual
282
11.4.2. BASIC ANTI-ESD PROCEDURES FOR ANALYZER REPAIR
AND MAINTENANCE
11.4.2.1. Working at the Instrument Rack
When working on the analyzer while it is in the instrument rack and plugged into a
properly grounded power supply.
1. Attach your anti-ESD wrist strap to ground before doing anything else.
Use a wrist strap terminated with an alligator clip and attach it to a bare
metal portion of the instrument chassis. This will safely connect you to
the same ground level to which the instrument and all of its components
are connected.
2. Pause for a second or two to allow any static charges to bleed away.
3. Open the casing of the analyzer and begin work. Up to this point, the
closed metal casing of your analyzer has isolated the components and
assemblies inside from any conducted or induced static charges.
4. If you must remove a component from the instrument, do not lay it down
on a non-ESD preventative surface where static charges may lie in wait.
5. Only disconnect your wrist strap after you have finished work and closed
the case of the analyzer.
11.4.2.2. Working at an Anti-ESD Work Bench.
When working on an instrument of an electronic assembly while it is resting on an anti-
ESD work bench:
1. Plug your anti-ESD wrist strap into the grounded receptacle of the work
station before touching any items on the work station and while standing
at least a foot or so away. This will allow any charges you are carrying
to bleed away through the ground connection of the workstation and
prevent discharges due to field effects and induction from occurring.
2. Pause for a second or two to allow any static charges to bleed away.
3. Only open any anti-ESD storage bins or bags containing sensitive devices
or assemblies after you have plugged your wrist strap into the
workstation.
Lay the bag or bin on the workbench surface.
Before opening the container, wait several seconds for any static
charges on the outside surface of the container to be bled away by the
workstation’s grounded protective mat.
4. Do not pick up tools that may be carrying static charges while also
touching or holding an ESD Sensitive Device.
Only lay tools or ESD-sensitive devices and assemblies on the
conductive surface of your workstation. Never lay them down on any
non-ESD preventative surface.
5. Place any static sensitive devices or assemblies in anti-static storage bags
or bins and close the bag or bin before unplugging your wrist strap.
07266B DCN6485