Ultimate Healthcare Heritage II Bariatric, Руководство пользователя

Страница: 24 / 28

Page 24 of 28
Issue: 5 - 12/12/2018
Guidance and manufacturer
’
s declaration-electromagnetic immunity
The GD311-401 is intended for use in the electromagnetic environment specified below.
The customer or the user of the GD311-401 should assure that is used in such and 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
80MHz to 2,5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the
GD311-401 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 80MHz to 800
MHz d = 2,3
√
P 800MHz
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 metres
(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
symbo
l:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 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 GD311-401 is used exceeds the
applicable RF compliance level above, the GD311-401 should be observed to verify normal operation. If abnormal
performance is observed, additional measures my be necessary, such as re-orienting or relocating the GD311-401.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.