Yuwell YE670D - Page 23

Electromagnetic compatibility information
Electromagnetic compatibility information
For ME EQUIPMENT and ME SYSTEMS that are
not LIFE-SUPPORTING
Table 4
The 7 is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled. The customer or
the user of the YE670D can help prevent electromagnetic
interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and the
7 as recommended below, according to the maximum output
power of the communications equipment.
YE6 0D
YE6 0D
For transmitters rated at a maximum output power not listed
above, the recommended separation distance d in meters (m) can
be determined using the equation applicable to the frequency of
the transmitter, where P is the maximum output power rating of
the transmitter in watts (W) according to the transmitter
manufacturer.
NOTE1 At 80 MHz and 800 MHz, the separation distance for the
higher frequency range applies.
NOTE2 These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and
reflection from structures,objects and people.
Recommended separation distances between portable and mobile
RF communications equipment and the YE670D
800 MHz to 2.5 GHz
d = 2.3
80 MHz to 800 MHz
d = 1.2
150 kHz to 80 MHz
d = 1.2
Separation distance according to frequency of
transmitter(m)
Rated maximum
output power
of transmitter
(W)
0.01
0.1
1
10
100
0.12
0.38
1.2
3.8
12
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
For ME EQUIPMENT and ME SYSTEMS that are
not LIFE-SUPPORTING
Table 3
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 YE670D is used exceeds the applicable RF
compliance level above, the YE670D should be observed to verify
normal operation. If abnormal performance is observed,additional
measures may be necessary, such as reorienting or relocating the
YE670D.
B. Over the frequency range 150 kHz to 80 MHz, field strengths
should be less than 3 V/m.
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range
applies.
NOTE2 These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
Guidance and manufacture s declaration-electromagnetic immunity'
The is intended for use in the electromagnetic environment
specified below. The customer or the user of YE670D should assure
that it is used in such an environment.
YE670D
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment-guidance
42
43
YE670D( )
尺寸：180X142.5mm 色彩：准确、单色，层次分明
纸张：105克双铜纸 印后加工：对折装订
CE认证 电子血压计说明书印刷要求