Safety Information
T3300 Diagnostic Ultrasound System | 14 | B00601-010 4/10/17
To limit exposure to electromagnetic interference from nearby equipment that can degrade image
quality, you should operate the system under EMI conditions that minimize power supply transients,
mechanical interactions, vibration, and thermal, optical, and ionizing radiation.
WARNINGS
• Using cables, transducers, and accessories other than those specified for use with the
system may result in increased emissions from, or decreased immunity of, the system.
• ME equipment has been tested for radiated RF immunity only at selected frequencies.
2.2.3.2 Separation Distances
The T3300 Diagnostic Ultrasound System is intended for use in the electromagnetic environment in
which radiated disturbances are controlled. The customer or operator of the system can help
prevent electromagnetic interference by maintaining a minimum distance between portable and
Where P is the maximum output
power rating of the transmitter in
watts (W) according to the
transmitter manufacturer, and d is
the recommended separation
distance in meters (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey
a
,
should be less than the
compliance level in each
frequency range
b
. Interference
may occur in the vicinity of
equipment marked with the
following symbol:
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy.
To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic
site survey should be considered. If the measured field strength in the location in which the
T3300 Diagnostic Ultrasound System is used exceeds the applicable RF compliance level
above, the system should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the system.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 6 Guidance and Manufacturer’s Declaration - Electromagnetic Immunity - Non-life-supporting
Equipment
Immunity test IEC 60601 test level Compliance level
Electromagnetic environment -
Guidance
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