otometrics MADSEN Alpha OAE, Руководство пользователя

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Guidanceand manufacturer's declaration - electromagnetic immunity - for equipment and systems that are NOT life-supporting
Alpha OAE is intended for use in the electromagnetic environment specified below. The user of Alpha OAE should ensure that it isused in such an environment.
Immunitytest IEC 60601
test level
Compliancelevel Electromagnetic environment - guidance
Radiated RF
IEC 61000-4-3
150 kHzto 80 MHz
outsideISM bands
a
3V/m
80MHz to 2.5 GHz
3V/m
Portableand mobile RF communications equip-
ment should be used no closer to any part of
Alpha OAE, including cables, than the recom-
mended separation distance calculated from the
equation applicable to the frequency of the
transmitter.
Recommended separation distance:
d = 1.2
d = 1.2 for 80MHz to 800 MHz
d = 2.3 for 80MHz 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 recom-
mended separation distance in metres (m).
Field strengthsfrom fixed RF transmitters, as
determined by an electromagnetic site survey,
a
should beless than the compliance level in each
frequency range.
b
Interference may occur in the vicinity of equip-
ment marked with this symbol:
Note 1: At 80 MHz and 800 MHz the separation distance for 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 Alpha OAE is used exceeds
the applicable RFcompliance level above, the Alpha OAE should be observed to verify normal operation. If abnormal performance is observed, addi-
tional measures might be necessary, such as reorienting or relocatingAlpha OAE.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Otometrics - MADSEN Alpha OAE 63
App. 3 Technical Specifications