23
Guidance and manufacturer’s declaration – electromagnetic immunity
The leva PDHS is intended for use in the electromagnetic environment specified below. The
customer or the user of the leva PDHS 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
[V1] = 3 Vrms
[E1] =3 V/m
Portable and mobile RF
communications equipment should
be used no closer to any part of the
leva PDHS, including cables, than the
recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
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 leva PDHS is used exceeds the applicable RF compliance level above, the leva
PDHS should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the leva PDHS.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.