MGE UPS Systems SAM Operating And Maintenance Manual page 24

Guidance and manufacturer's declaration – electromagnetic immunity
The SAM e.p.s is intended for use in the electromagnetic environment specified below. The customer or the user of the
SAM e.p.s should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC61000-4-6
Radiated RF
IEC61000-4-3
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 SAM e.p.s is used exceeds the applicable RF
compliance level above, the SAM e.p.s should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orientating or relocating the SAM e.p.s.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Manual 156 - Issue 08
SAM e.p.s – UK
Operation and Maintenance Manual
IEC 60601 Compliance level
test level
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
Electromagnetic environment -
Portable
communications equipment should
be used no closer to any part of the
SAM e.p.s, including cables, than
the recommended
distance
equation
frequency of the transmitter.
3 V Recommended separation distance
(d)
d = 1.2√P
3 V/m
d = 1.2√P
d = 2.3√P
Where P is the maximum output
power rating of the transmitter in
watts (W)
transmitter manufacturer and d is
the recommended
distance in metres (m).
Fields strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey,
be less than the compliance level in
each frequency range.
Interference may occur in the
vicinity of equipment marked with
the following symbol:
guidance
and mobile RF
separation
calculated from the
applicable to the
80 MHz to 800 MHz
800 MHz to 2.5 GHz
according to the
separation
a
should
b
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