iHealth KD-557BT, Owner'S Manual, Page: 16 / 17

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IEC 61000-4-8 commercial or hospital
environment.
Table 3
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacturer
’
s declaration - electromagnetic immunity
The KD-557BT is intended for use in the electromagnetic environment specified below. The customer or
the user of the KD-557BT should assure that it is used in such an environment.
IMMUNITY test IEC 60601test level
Compliance
level
Electromagnetic environment - guidance
Radiated RF
IEC 61000-4-3
3 V/m 80 MHz to 2.5
GHz
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the KD-557BT, including cables, than
the recommended separation distance
calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
：
80 MHz to 800 MHz
800 MHz to 2,5 GHz
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:
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
KD-557BT is used exceeds the applicable RF compliance level above, the KD-557BT should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
P d 2 . 1

P d 3 . 2
