Guidance and manufacturer's declaration – electromagnetic immunity – LifeWave BST
The LifeWave BST is intended for use in the electromagnetic environment specified below; the
customer or the user of the LifeWave BST should assure that it is used in such an environment.
IEC 60601
Immunity
test
Test level
Conducted RF
3 Vrms
IEC 61000-4-6
150 k Hz
to 80 MHz
Radiated RF
3 V/m
IEC 61000-4-3
80 MHz to
2,5 GHz
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 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 radios, AM and FM radio broadcasts and TV
broadcasts 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 LifeWave BST is used exceeds the
applicable RF compliance level above, the LifeWave BST should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as
re-orienting or relocating the LifeWave BST.
b - Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
148
Table 4
Compliance
Electromagnetic environment - guidance
level
Portable and mobile RF communications
equipment should be used no closer to any part
of the LifeWave BST, including cables, than the
recommended separation distance calculated from
the equation applicable to the frequency of the
transmitter.
Recommended separation distance
3 Vrms
d = 1.17√P
d = 1.17√P
3 V/m
d= 2.34√P
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 fixed RF transmitters, as
determined by an electromagnetic site survey
should be less than the compliance level in each
frequency range
Interference may occur in the vicinity of equipment
marked with the following symbol:
© All Right Reserved, LifeWave Ltd. 2010
80 M Hz t o 800 MHz
800 MHz t o 2,5 GHz
d
,
a