Zenith Therm-X Series, Руководство пользователя

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IFU-001 Rev. 8
Table 3. Electromagnetic Immunity Declaration II
Declaration – Electromagnetic Immunity
Therm-X is intended for use in the electromagnetic environment specified below. The customer or the user of
Therm-X 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 3 V
150kHz to 80 MHz 3 V Portable and mobile RF communications
equipment should be used no closer to
any part of Therm-X, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d = 1.2√P
d = 1.2√P 80 MHz to 800 MHz
d = 2.3√P 800 MHz 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 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:
Radiated RF
IEC 61000-4-3 3 V/m
80 MHz to 2.5 GHz 3 V/m
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.
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 Therm-X is used exceeds the applicable RF compliance level above, Therm-X should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating Therm-X.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.