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Guidance and manufacturer's declaration-electromagnetic immunity
The Thermometer is intended for use in the electromagnetic environment specified below. The
customer or the user of the Thermometer should assure that it is used in such an environment.
IEC 60601
Immunity test
test level
Conducted RF 3Vrms
IEC 61000-4-6 150kHz to
80 MHz
Radiated RF 10 V/m
IEC 61000-4-3 80MHz to
2.5 GHz
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 from radio (cellular/cordless) telephones and land
mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast can not be predicted theoretic call 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 Thermometer is used exceeds the
applicable RF compliance level above, the Thermometer should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the Thermometer.
b. Over the frequency range 150kHz to 80MHz, field strengths should be less than 10 V/m.
Compliance
Electromagnetic environment-guidance
level
Not Portable and mobile RF communications
applicable equipment should be used no closer to any
part of the Thermometer, including cables,
than the recommended separation distance
10 V/m calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance.
d=1.2
d=1.2
d=2.3
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:
GB | 19
80 MHz to 800 MHZ
800 MHz to 2,5 Ghz