Guidance And Manufacturer's Declaration - Electromagnetic Immunity - Enraf Nonius Sonopuls 190 Instrucciones De Manejo

Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
NOTE U T is the a.c.mains voltage prior to application of the test level.
10.4.2 Guidance and manufacturer's declaration – electromagnetic immunity
The Sonopuls 190 is intended for use in the electromagnetic environment specified below. The customer
or the user of the Sonopuls 190 should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
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 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 Sonopuls 190 is used exceeds the applicable RF compliance level above, the
Sonopuls 190 should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the Sonopuls 190.
B Over the frequency range 15 kHz to 8 MHz, field strengths should be less than 3 V / m.
52
70 % U T
(30 %dip in U T)
for 25 cycles
<5 % U T
(>95 %dip in U T)
for 5 sec
3 A/m
IEC 60601 test level
3 Vrms
150 kHz to 80 MHz
3 V/ m
80 MHz to 2,5 GHz
70% U
T
for 25 cycles
< 5% U
T
For 5 sec.
3A / m
Compliance Electromagnetic environment –
level
Portable and mobile RF
communications equipment should be
used no closer to any part of the
Sonopuls 190, including cables, than
the recommended separation distance
calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance
3 V
d = [3,5/3]√P
3 V/ m d = [3,5/3]√P
d = [7/3]√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,
less than the compliance level in each
frequency range.
occur in the vicinity of equipment
marked with the following symbol:
power mains interruptions,
it is recommended
that the Sonopuls 190 be
powered from an
uninterruptible power
supply or a battery.
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
computer room.
guidance
80 MHz to 800 MHz
800 MHz to 2,5 GHz
a
should be
b
Interference may