Kowa VX-10a, Instruction Manual, Page: 59 / 64

Electr
oma
gnetic Compa
tibility
(IEC 60601-1-2)
11
11. Electromagnetic Compatibility (IEC 60601-1-2)
P11-4
Guidance and manufacturer's declaration - electromagnetic immunity
The KOWA is intended for use in the electromagnetic environment specified below.
The customer or the user of the KOWA 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
3 V
3 V/m
Portable and mobile RF communications equip-
ment should be used no closer to any part of the
KOWA , including cables, than the rec-
ommended 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 trans-
mitter manufacturer and d is the recommended
separation distance in metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site surveya,
should be less than the compliance level in each
frequency rangeb.
Interference may occur in the vicinity of equip-
ment marked with the following symbol:
NOTE 1 At 80MHz and 800MHz, 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 KOWA
is used exceeds the applicable RF compliance level above, the KOWA should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as reori-
enting or relocating the KOWA
.
b Over the frequency range 150kHz to 80MHz, field strengths should be less than 3 V/m.