Advantech HIT-W18 Series, User Manual

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HIT-W18 User Manual 26
Guidance and manufacturer’s declaration – electromagnetic immunity
The model HIT-W18 is intended for use in the electromagnetic environment specified
below. The customer or the user of the model HIT-W18 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
Vrms
V/m
Portable and mobile RF communi-
cations equipment should be used
no closer to any part of the model
HIT-W18, including cables, than
the recommended separation dis-
tance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation dis-
tance
d = 1,2
d = 1,2 80 MHz to 800 MHz
d = 2,3 800 MHz to 2,5 GHz
where P is the maximum output
power rating of the transmitter in
watts (W) according to the trans-
mitter manufacturer and
d is the
recommended separation dis-
tance in metres (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,
a
should be less than the compli-
ance level in each frequency range.
b
Interference may occur in the vicin-
ity 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 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 model HIT-W18 is used exceeds the applicable RF compliance level above, the model HIT-W18 should
be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the model HIT-W18.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than V/m.
P
P
P