Femometer DET-1015 Bedienungsanleitung Seite 34

Table 3
Guidance and manufacturer's declaration-electromagnetic immunity
The device is intended for use in the electromagnetic environment specified
below. The customer or the user of the device should assure that it is used in such
an environment.
IEC 60601 Compliance
IMMUNITY test
test level
Conducted
3Vrms
RF
150kHz to 80
IEC 61000-4-
MHz 6 Vrms
6
150 KhZ to 80
MHz outside
ISM bandsa
10 V/m
Radiated RF
80 MHz to
IEC 61000-
2.7 GHz
4-3
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Electromagnetic environment
level -guidance
Portable and mobile RF
communications equipment should
be used no closer to any part of the
device, including cables, than the
recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
N/A
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 metres (m).
10V/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:
Table 3 continued
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. The ISM(industrial, scientific and medical) bands between 0, 1 5 MHz and 80 MHz are 6,765
MHz to 6,795 MHz;13,553 MHz to 13,567 MHZ;26,957 MHz to 27,283 MHz; and 40,66 MHz to
40,70 MHz. The amateur radio bands between 0, 1 5 MHz and 80 MHz are 1,8 MHz to 2,0 MHz,3,5
MHz to 4,0 MHz,5,3 MHz to 5,4 MHz,7 MHz to 7,3 MHz, 1 0, 1 MHz to 10, 1 5 MHz, 1 4 MHz to 14,2
MHz, 1 8,07 MHz to 18, 1 7 MHz,21,0MHz to 21,4MHz,24,89 MHz to 24,99 MHz,28,0 MHz to 29,7
MHz and 50,0 MHz to 54,0 MHZ.
B. The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in
the frequency range 80 MHz to 2,7 GHz are intended to decrease the likelihood that mobile/
portable communications equipment could cause interference if it is inadvertently brought
into patient areas. For this reason, an additional factor of 10/3 has been incorporated into the
formulae used in calculating the recommended separation distance for transmitters in these
frequency ranges.
C. 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 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 measures may be necessary, such as re-
orienting or relocating the device.
D. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 4
Recommended separation distances between
portable and mobile RF communications equipment and the device
The device is intended for use in an electromagnetic environment in which
radiation, therefore disturbances are controlled. The customer or the user
of the device can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications
equipment (transmitters) and the device as recommended below, according
to the maximum output power of the communications equipment.
eparation distance according to frequency of
Rated
maximum output
power of
150 kHz to 80 MHz
transmitter
W
0.01 0.12
0.1 0.37
1 1.17
10 3.7
100 11.7
transmitter
m
80 MHz to 800 MHz 800 MHz to 2. 7 GHz
0.04 0.07
0.12 0.25
0.35 0.7
1.11 2.22
3.5 7.0
EN
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