GE BrightSpeed Edge, Руководство по предварительной установке

Страница: 39 / 170

GE H
EALTHCARE

D
IRECTION
5141177-100, R
EVISION
14 B
RIGHT
S
PEED
E
LITE
, E
DGE
, E
XCEL
: P
RE
-I
NSTALLATION
Chapter 1 - Introduction Page 39
1 – In
to
d
u
c
tio
n
Table 1-9 Immunity Declaration con’t
EMC Immunity Guidance & Declaration for System
The System is intended for use in the electromagnetic environment specified below. The
customer or the user of the System should assure that it is used in such an environment.
Immunity Test IEC
60601-1-2
Test
Level
Complian
ce Level
Electromagnetic Environment Guidance
Conducted RF
IEC 61000-4-6 3
VRMS

150kHz to
80 MHz
3 V

150kHz to
80 MHz
Portable and mobile RF communications
equipment should be used no closer to any part of
the System, including cables, than the
recommended separation distance calculated from
the equation appropriate for the frequency of the
transmitter.
Recommended Separation Distance
(see Table 1-10 )
Radiated RF

IEC 61000-4-3
(alternative
method: IEC
61000-4-21)
3 V/m

80 MHz to
2.5 GHz
3 V/m

80 MHz to
2.5 GHz
80 MHz to 800 MHz (see Table 1-10 )
800 MHz to 2.5GHz (see Table 1-10 )
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).
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:
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, and electromagnetic site survey should be
considered. If the measured field strength in the location in which the System is used exceeds
the applicable RF compliance level above, the
System should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocation the System.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Note : These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects, and people.
d
3.5
3
---------
P
=
d
3.5
3
---------
P
=
d
7
3
---
P
=