Grass Valley K2 Dyno S v.3.0 - Manual (Page 19)

K2 Dyno S Replay Controller 19 Installation & Service Manual
4 December 2012
ESD Protection
Electronics today are more susceptible to electrostatic discharge (ESD) damage than older
equipment. Damage to equipment can occur by ESD fields that are smaller than you can
feel. Implementing the information in this section will help you protect the investment that
you have made in purchasing Grass Valley equipment. This section contains Grass Valley’s
recommended ESD guidelines that should be followed when handling electrostatic
discharge sensitive (ESDS) items. These minimal recommendations are based on the
information in the
“Sources of ESD and Risks” area. The information in “Grounding
Requirements for Personnel” on page 20 is provided to assist you in selecting an
appropriate grounding method.
Recommended ESD Guidelines
Follow these guidelines when handling Grass Valley equipment:
• Only trained personnel that are connected to a grounding system should handle ESDS
items.
• Do not open any protective bag, box, or special shipping packaging until you have
been grounded.
• Open the anti-static packaging by slitting any existing adhesive tapes. Do not tear the
tapes off.
• Remove the ESDS item by holding it by its edges or by a metal panel.
• Do not touch the components of an ESDS item unless it is absolutely necessary to
configure or repair the item.
• Keep the ESDS work area clear of all nonessential items such as coffee cups, pens,
wrappers and personal items as these items can discharge static. If you need to set an
ESDS item down, place it on an anti-static mat or on the anti-static packaging.
Sources of ESD and Risks
The following information identifies possible sources of electrostatic discharge and can be
used to help establish an ESD policy.
Personnel
One of the largest sources of static is personnel. The static can be released from a person’s
clothing and shoes.
Environment
The environment includes the humidity and floors in a work area. The humidity level must
be controlled and should not be allowed to fluctuate over a broad range. Relative humidity
(RH) is a major part in determining the level of static that is being generated. For example,
at 10% - 20% RH a person walking across a carpeted floor can develop 35kV; yet when the
relative humidity is increased to 70% - 80%, the person can only generate 1.5kV.
Note: When a Personal Grounding strap is unavailable, as an absolute minimum,
touch a metal object that is touching the floor (for example, a table, frame, or
rack) to discharge any static energy before touching an ESDS item