Directions for Use Safety Summary 5
Electrostatic Discharge (ESD)
Electrostatic discharge is a sudden current flowing from a charged object to another
object or to ground. Electrostatic charges can accumulate on common items such as
foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging
material, and untreated plastic bags and work folders, to name only a few.
Electronic components and assemblies, if not properly protected against ESD, can be
permanently damaged or destroyed when near or in contact with electrostatically charged
objects. When you handle components or assemblies that are not in protective bags and
you are not sure whether they are static-sensitive, assume that they are static-sensitive
and handle them accordingly.
• Perform all service procedures in a static-protected environment. Always use
techniques and equipment designed to protect personnel and equipment from
electrostatic discharge.
• Remove static-sensitive components and assemblies from their static-shielding bags
only at static-safe workstations—a properly grounded table and grounded floor mat—
and only when you are wearing a grounded wrist strap (with a resistor of at least 1
megohm in series) or other grounding device.
Warnings Related to Using the Electrocardiograph
WARNING Avoid positioning any leads or cables so that they could easily trip
someone.
WARNING Satisfactory maintenance procedures must be implemented, or
equipment failure and health hazards may result.
Warnings Related to Repairing the Electrocardiograph
WARNING Only qualified service personnel should attempt to repair the
electrocardiograph. In case of a malfunction, call Technical Support and precisely
describe the problem. For phone numbers, see page ii.
WARNING While under warranty, the electrocardiograph must be serviced
only by a Welch Allyn service technician.
WARNING Electrostatic discharge (ESD) can damage or destroy electronic
components. Handle static-sensitive components only at static-safe
workstation.
WARNING Consider all electrical and electronic components of the monitor as
static-sensitive.
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