Electromagnetic compatibility
Instructions for use • C-MAC
®
Pocket Monitor • DRE117_EN_V1.0_10-2020_IFU_CE-MDR
34
Interference immunity
tests
EN/IEC 60601 test
level
Compliance
level
Electromagnetic envi-
ronment – guidelines
Radiated HF distur-
bances acc. to IEC
61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
product, including cables,
than the recommended
separation distance calcu-
lated from the equation
applicable to the fre-
quency of the transmitter.
Recommended separation
distances:
d = 1.2 √P
Where P is the rated
power of the transmitter in
watts [W] according to the
information provided by
the transmitter manufac-
turer and d is the recom-
mended separation dis-
tance in meters [m].
Field strengths from fixed
HF transmitters as deter-
mined by an electromag-
netic site survey
a
should
be less than the compli-
ance level in each fre-
quency range
b
.
d = 1.2 √P
80 MHz to 800 MHz
d = 2.3 √P
800 MHz to 2.5 GHz
Interferences may occur in
the vicinity of equipment
marked with the following
symbol:
Note: At 80 MHz and 800 MHz, the higher frequency range applies.
Note: These guidelines may not apply in all situations. The propagation of electromagnetic
waves is affected by absorptions and reflections of buildings, objects, and people.
a
Field strengths from fixed transmitters, e.g., base stations for radio (cellular/cordless) tele-
phones and land mobile radios, amateur radio, AM and FM radio broadcast, and TV broad-
cast cannot be predicted theoretically with accuracy. To assess the electromagnetic environ-
ment due to fixed transmitters, an electromagnetic site survey should be considered. If the
measured field strength at the location where the device is used exceeds the above compli-
ance levels, the device should be monitored to ensure proper function. If abnormal perfor-
mance is observed, additional measures may be necessary, such as re-orienting or relocating
the product.
b
Over the frequency range from 150 kHz to 80 MHz, field strengths should be less than 3 V/
m.
