Sunbeam HL858A2-LT Instruction Manual page 10

Guidance and manufacturer's declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below, and should only be
used in such environments:
Immunity IEC 60601 test
test level
3V rms 3V rms
At 0.15-80MHz At 0.15-80MHz
Conducted RF
6V rms 6V rms
IEC 61000-4-6
At ISM & Radio At ISM & Radio
Amateur Freq Amateur Freq.
10 V/m at 10 V/m at
80 - 2700MHz AM 80 - 2700 MHz AM
Modulation And Modulation And
9 - 28V/m at 9 - 28V/m at
385 - 6000MHz, 385 - 6000MHz,
Pulse Mode and Pulse Mode and
Radiated RF
other Modulation. other Modulation.
IEC 61000-4-3
The system shall be The system shall be
Proximity
tested as specied in tested as specied in
elds from RF
wireless
IEC60601-1-2 IEC60601-1-2
communications
Table 9 Table 9
equipment
for proximity elds for proximity elds
IEC 61000-4-3
from RF wireless from RF wireless
communications communications
equipment using equipment using
the test methods the test methods
specied in IEC specied in IEC
61000-4-3 61000-4-3
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.
Field strengths from xed transmitters, such as base stations for radio (cellular / cordless) telephones
a
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 xed RF
transmitters, an electromagnetic site survey should be considered. If the measured eld strength in
the location in which the device is used exceeds the applicable RF compliance level above, the device
should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the device.
Over the frequency range 150kHz to 80MHz, field strengths should be less than 3V/m.
b
18
Electromagnetic environment
Compliance level
-guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the device, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
Considering to reduce the minimum
separation distance, based on RISK
MANAGEMENT, and using higher
IMMUNITY TEST LEVELS that are
appropriate for the reduced minimum
separation distance. Minimum
separation distances for higher
IMMUNITY TEST LEVELS shall be
calculated using the following equation:
E=6/d
P
where P is the maximum power in W,
d is the minimum separation distance
in m, and E is the IMMUNITY TEST
LEVELS in V/m. Field strengths from xed
RF transmitters, as determined by an
electromagnetic site survey,
be less than the compliance level in
each frequency range.
b
may occur in the vicinity of equipment
marked with the
following symbol:
Test specications for enclosure port immunity to RF wireless communications equipment.
Test frequency (MHz)
385
450
710
745
780
810
870
930
1720
1845
1970
2450
5240
5500
5785
NOTE:
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting antenna and
the ME EQUIPMENT or ME SYSTEM may be reduced to 1m, The 1m test distance is permitted by IEC
61000-4-3.
a should
The carrier shall be modulated using a 50% duty cycle square wave signal.
a)
AS an alternative to FM modulation, 50% pulse modulation at 18Hz may be used because while it
b)
Interference
does not represent actual modulation, it would be worst case.
Modulation IMMUNITY TEST LEVEL (V/m)
Pulse modulation 18Hz
a)
FM ±5kHz deviation 1kHz sine
b)
Pulse modulation 217Hz
a)
Pulse modulation 18Hz
a)
Pulse modulation 217Hz
a)
Pulse modulation 217Hz
a)
Pulse modulation 217Hz
a)
27
28
9
28
28
28
9
19