Philips DL8740 Manual page 20

Electro ±6 kV
static di contact
scharge
±8 kV air
(ESD)
IEC
61000-4
-2
Power 3A/m
frequen
cy
(50/60H
z) ma
gnetic
field IEC
61000-4
-8
Guidance and manufacturer's declara
tion – electromagnetic immunity –for
ME equipment and ME systems that
are not life supporting
Guidance and manufacturer's declaration – electro
magnetic immunity
The device is intended for use in the electromagne
tic environment specified below. The customer or
the user of the device should assure that it is used
in such an environment.
IMMUNI
TY test
Conduc
ted RF
IEC
61000-4-
6
Radiated
RF
IEC
61000-4-
3
NOTE 1 At 80 MHz and 800 MHz, the higher fre
quency range applies.
NOTE 2 These guidelines may not apply in all situa
tions. 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) tele
phones 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 mea
sures may be necessary, such as re-orienting or re
locating the device.
(b) Over the frequency range 150 kHz to 80 MHz,
field strengths should be less than 3V/m.
Recommended separation distances
between portable and mobile RF com
munications equipment and the ME
equipment or ME system – for ME
equipment and ME systems that are
not life supporting
Recommended separation distances between por
table and mobile RF communications equipment
and the device.
The device is intended for use in an electromagne
tic environment in which radiated RF disturbances
are controlled. The customer or the user of the de
vice can help prevent electromagnetic interference
by maintaining a minimum distance between por
table and mobile RF communications equipment
(transmittters) and the device as recommended be
low, according to the maximum output power of
the communications equipment.
Rated
maximum
output po
wer of
transmitter
(W)
0.01
±6 kV
contact
±8 kV
air
3A/m
IEC Com
606 plia
01 nce
TES le
T LE vel
VEL
3 3
Vrms Vrms
150
kHz
to
80
MHz
3 3
V/m V/m
80
MHz
to
2.5
GHz
Separation distance according to
frequency of transmitter (m)
150 kHz to
80 MHz
Ö
d = 1.167
P
0.117
Floors should be
wood, concrete or
ceramic tile. If
floors are covered
with synthetic ma
terial, the relative
humidity should
be at least 30%.
Power frequency
magnetic fields
should be at levels
characteristic of a
typical location in
a typical commer
cial or hospital en
vironment.
Electromagnetic envi
ronment - guidance
Portable and mobile
RF communications
equipment should be
used no closer to any
part of the device, in
cluding cables, than
the recommended se
paration distance calcu
lated from the equa
tion applicable to the
frequency of the trans
mitter.
Recommended separa
tion distance:
ÖP
d = 1.167
ÖP
d = 1.167
2.5 GHz
ÖP
d = 2.333
to 2.5 GHz
P
where is the maxi
mum output power ra
ting of the transmitter
in watts (W) according
to the transmitter ma
nufacturer and
recommended separa
tion distance in metres
(m).
Field strengths from
fixed RF transmitters,
as determined by an
electromagnetic site
survey (a), should be
less than the com
pliance level in each
frequency range (b).
Interference may occur
in the vicinity of equip
ment marked with the
following symbol:
80 MHz 800 MHz
to 800 to 2.5 GHz
MHz
d = 1.167
Ö
d = 1.167 P
P
0.117 0.233
80 MHz to
800 MHz
d
is the
Ö