Teledyne 651 Basic Anti-ESD Procedures for Instrument Repair and Maintenance

Teledyne API Ultrafine Particle Monitor - Model 651 Primer on Electro-Static Discharge

07506C DCN6727 97

Basic Anti-ESD Procedures for Instrument Repair and Maintenance

When working on the instrument while it is in the instrument rack

and plugged into a properly grounded power supply.

1. Attach your anti-ESD wrist strap to grou nd 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 analyze r 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 remo ve 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.

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.