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© Guldmann GB/US-12/2018 • # 557164_4
© Guldmann GB/US-12/2018 • # 557164_4
Tabel 4
Guidance and manufacturer’s declaration – electromagnetic immunity
The GHZ is intended for use in the electromagnetic environment specified below.
The customer or the user of the GHZ 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 equip-
ment should be used no closer to any part of
the GHZ, including cables, than the recom-
mended separation distance calculated from
the equation applicable to the frequency of the
transmitter.
Recommended separation
distance
d=1,2
√
Pd=1,2
√
P 80 MHz to 800 MHz
d=2,3
√
P 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 recom-
mended 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 equip-
ment 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 elec-
tromagnetic site survey should be considered. If the measured field strength in the location in which the GHZ
is used exceeds the applicable RF compliance level above, the GHZ should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting
or relocating the GHZ.
b)
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
