Pulox PO-400 Bedienungsanleitung Seite 54

Conducted RF 3 Vrms
IEC 61000-4-6 150 kHz to 80
MHz
Radiated RF
IEC 61000-4-3 3 V/m
80 MHz to 2.5
GHz
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 Pulse Oximeter is used exceeds the applicable RF compliance level above, the Pulse
Oximeter should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the Pulse Oximeter.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM –
Recommended separation distances between
portable and mobile RF communications equipment and the Pulse Oximeter.
The Pulse Oximeter is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Pulse Oximeter can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Pulse Oximeter as recommended below, according to
the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
(W)
0.01
0.1
1
3 Vrms
3 V/m
for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING
Separation distance according to frequency of transmitter
(m)
150 kHz to 80 MHz
 
3 5 .

 
d P
 
V
1
0.117
0.369
1.167
Portable and mobile RF communications equipment
should be used no closer to any part of the Pulse
Oximeter, including cables, than the recommended
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
 
 
3 5 .
 7
 
d  P
d   P
 V 
 
E
1
1
 
3 5 .

 
d P
 
E
1
80 MHz to 800 MHz
800 MHz to 2.5 GHz
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:
80 MHz to 800 MHz
 
3 5 .

 
d P
 E 
1
0.117
0.369
1.167
800 MHz to 2.5 GHz
 
7

 
d P
 E 
1
0.233
0.738
2.333