
56
Guidance and manufacturer’s declaration
Guidance and manufacturer’s declaration
Guidance and manufacturer’s declaration
Guidance and manufacturer’s declaration –––– electromagnetic immunity
electromagnetic immunity
electromagnetic immunity
electromagnetic immunity
The
SunTech 247
device is intended for use in the electromagnetic environment specified
below. The customer or the user of the
SunTech 247
device should assure that it is used in such
an environment.
Immunity test
Immunity test
Immunity test
Immunity test
IEC 60601
IEC 60601
IEC 60601
IEC 60601
test level
test level
test level
test level
Compliance
Compliance
Compliance
Compliance
level
level
level
level
Electromagnetic environment
Electromagnetic environment
Electromagnetic environment
Electromagnetic environment ---- guidance
guidance
guidance
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3V/m
80 MHz to 2.5 GHz
3V
3 V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the
SunTech 247
, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
Recommended separation distance
Recommended separation distance
Recommended separation distance
d
= [3.5/V
1
] √
P
d
= [3.5/E
1
] √
P
80MHz to 800MHz
d
= [7/E
1
] √
P
800MHz to 2.5GHz
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
SunTech 247 device is used exceeds the applicable RF compliance level above, the
SunTech 247 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
SunTech 247 device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.