MN-36956/MM-1074
Rev 0 (01/15) • Blanket Warming Cabinet Operation & Care Manual • 15
Guidance and manufacturer’s declaration - electromagnetic emissions
The unit is intended for use in the electromagnetic environment specifi ed below. The customer or the end user of this unit 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 communications equipment should be used no
closer to any part of the unit, 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
Radiated RF
IEC 61000-4-3
3 V/m
150 kHz to 80 MHz
3 V/m
80 MHz to 2 .5 GHz
3 V/m
3 V/m
d = [3 .5/3]
√
P
d = [3 .5/3]
√
P 80 MHz to 800 MHz
d = [7/3]
√
P 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 fi xed 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 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 refl ection from
structures, objects and people .
a
Field strengths from fi xed 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 fi xed RF transmitters, an electromagnetic site survey should be considered. If the measured fi eld strength in the
location in which the unit is used exceeds the applicable RF compliance level above, the unit should be observed to verify normal
operation . If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the unit .
b
Over the frequency range 150 kHz to 80 MHz, fi eld strengths should be less than [VI] V/m.
Guidance and manufacturer’s declaration – electromagnetic immunity recommended separation
distance between portable and mobile RF communications equipment and this unit.
The unit is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled . The customer or
the user of the unit can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the unit as recommended below, according to the maximum output power of the
communications equipment .
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2 .5 GHz
0 .01
0 .117
0 .117
0 .233
0 .1
0 .369
0 .369
0 .738
1
1 .167
1 .167
2 .333
10
3 .689
3 .689
7 .379
100
11 .667
11 .667
23 .333
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using
the equation applicable to the frequency of the transmitter, where P is the maximum output rating of the transmitter in watts (W) according to the
transmitter manufacturer .
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies .
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and refl ection from structures, objects
and people .
