Chapter 2. Safety 2 - 13
ESD
Electrostatic discharge (ESD), which is commonly referred to as static shock, is a
naturally occurring phenomenon. ESD is most prevalent during conditions of low
humidity, including during heater or air-conditioner use. The static shock or ESD is
a discharge of the electrical energy build-up from a charged individual to a less- or
non-charged individual or object. An ESD occurs when an individual with an
electrical energy build-up comes in contact with conductive objects such as metal
doorknobs, file cabinets, computer equipment, and even other individuals.
CAUTION
■ The level of electrical energy discharged from a system user
or patient to an ultrasound system can be significant enough
to cause damage to the system or probes.
■ Always perform the ESD preventive procedure before using
connectors bearing the ESD warning symbol.
- Apply anti-static spray to carpets or linoleum.
- Use anti-static mats.
- Ground the product to the patient’s table or bed.
■ It is highly recommended that the user be given training on
ESD-related warning symbols and preventive procedures.
EMI
Although this system has been manufactured in compliance with existing EMI
(ElectroMagnetic Interface) requirements, use of this system in the presence of an
electromagnetic field can cause degradation of the ultrasound image or product
damage.
If this occurs often, Samsung Medison suggests a review of the environment in
which the system is being used, to identify possible sources of electromagnetic
emissions. These emissions could be from other electrical devices used within the
same room or an adjacent room. Communication devices such as cellular phones
and pagers can cause these emissions. The existence of radios, TVs, or
microwave transmission equipment nearby can also cause interference.
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