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94
SPECIFICATIONS
Guidance and manufacturer's declaration - electromagnetic immunity
The OMS-800 is intended for use in the electromagnetic environment specified below.
The customer or the user of the OMS-800 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
150kHz to 80MHz
3 V/m
80MHz to 2, 5GHz
3 V
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the OMS-800, including cables, than
the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
d = 1.2
d = 1.2 80MHz to 800MHz
d = 2.3 800MHz to 2, 5GHz
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, 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:
NOTE 1
NOTE 2
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a
b
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 OMS-800 is used exceeds the applicable RF compliance level above, the
OMS-800 should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the OMS-800.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
P
P
P
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