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Guidance and manufacturer’s declaration – electromagnetic emissions
The device is intended for use in the electromagnetic environment specified below. The customer or the user of the device
should assure that is used in such an environment.
Immunity test
level EN 60601-1-2
Compliance Level
Electromagnetic environment - guide
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 device,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
1.2
d
P
1.2
d
P
80 MHz
～
800 MHz
2.3
d
P
800 MHz
～
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, should be
less than the compliance level in each frequency range.
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 device is used exceeds the applicable
RF compliance level above, the device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the device.
b)
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
