Electromagnetic Compatibility Product Specifications
9 - 28 046-004667-00 A7™ Operating Instructions
GUIDANCE AND DECLARATION - ELECTROMAGNETIC IMMUNITY
The A7 is intended for use in the specified electromagnetic environment. The customer or the user of the
A7 should assure that it is used in such an environment as described below.
IMMUNITY
TEST
IEC 60601 TEST
LEVEL
COMPLIANCE
LEVEL
ELECTROMAGNETIC ENVIRONMENT -
GUIDANCE
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
outside ISM bands
a
10 Vrms
150 kHz to 80 MHz in
ISM bands
a
3 Vrms
10 Vrms
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 to the frequency of the
transmitter.
Recommended separation distance
d = 1.2 x
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to 2.5 GHz
10 V/m Recommended separation distance
d = 1.2 x 80 MHz to 800 MHz
d = 2.3 x 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)
b
.
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey
c
, should be
less than the compliance level in each
frequency range
d
.
Interference may occur in the
vicinity of equipment marked
with the following symbol:
NOTE: At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
NOTE: 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 150 kHz 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.
b An additional factor of 10/3 is used in calculating the recommended separation distance for transmitters
in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2,5 GHz
to decrease the likelihood that mobile/portable communications equipment could cause interference if it
is inadvertently brought into patient areas.
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 A7 is used exceeds the applicable RF compliance level above, the A7 should be observed to verify nor-
mal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating A7.
d Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
TABLE 9-41
Guidance and Declaration - Electromagnetic Immunity
P
P
P
To Next Page
Loading...
Need help?
General
