Grass Valley K2 Dyno Service Manual - Manual (Page 21)

02 February 2012 K2 Dyno Replay Controller Service Manual 21
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 22 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.
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