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ELECTROMAGNETIC IMMUNITY GUIDANCE
ELECTROMAGNETIC IMMUNITY GUIDANCE
Guidance and manufacturer’s declaration – electromagnetic immunity
The LaserBand 41 is intended for use in the electromagnetic environment specified below. The customer or the user of the LaserBand 41 should assure that it is used in such
an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment-guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3
Vrms
150 kHz to 80 MHz
3
V/m
80 MHz to 2.5 GHz
3
Vrms
3
V/m
Portable and mobile RF communications equipment should be used no closer to any part of
the LaserBand 41 including cables, than the recommended separation distance calculated
from the equation applicable to the frequency of the transmitter.
Recommended separation distance:
d = 1,2 √P
d = 1,2 √P 80 MHz to 800 MHz
d = 2,3 √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 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:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.
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 LaserBand 41 is used exceeds the applicable RF compliance level above, the LaserBand 41 should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the LaserBand 41.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
a
b
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Summary of Contents for comfortflex LaserBand 41
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