NDS EndoVue Plus 24, Руководство пользователя

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22
EMC Tables
Guidance and manufacturer’s declaration – electromagnetic immunity
The display series is intended for use in the electromagnetic environment specified below. The customer or the user of the display series
should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment should be
used no closer to any part of the display series, including cables,
than the recommended separation distance calculated from
the equation applicable to the frequency of the transmitter.
Recommended separation distance
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 metres (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:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
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 display series is used exceeds the
applicable RF compliance level above, the display should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the display.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.