Arjo Enterprise E8000X, Service Manual

Page: 102 / 105

Technical Data Enterprise E8000X Service Manual
Page 98
Guidance and manufacturer’s declaration – electromagnetic immunity
The bed is intended for use in the electromagnetic environment specified below. The customer or the
user of the bed should assure that it is used in such an environment.
Immunity test
IEC 60601 test
level Compliance
level Electromagnetic environment -
guidance
Portable and mobile RF communication
s equipment should be used no closer to
any part of the bed, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6 3V rms
150kHz to 80MHz
3V
Radiated RF
IEC 61000-4-3 3V/m
80MHz to 2.5GHz
3V/m 80 MHz to 800MHz
800MHz to 2.5GHz
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 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:
NOTE 1
At 80MHz and 800MHz, 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 bed is used exceeds the applicable RF compliance level
above, the bed should be observed to verify normal operation. If abnormal performance is
observed additional measures may be necessary, such as reorienting or relocating the bed.
b
Over the frequency range 150kHz to 80MHz, field strengths should be less than 3V/m.
d P

1 2 .
d P

1 2 .
d P

2.3