Fresenius Medical Care 460018 Operator's Manual page 73

The 132 Gallon Dry Acid Dissolution Unit is intended for use in the electromagnetic environment specified below.
The customer or the user of the 132 Gallon Dry Acid Dissolution Unit should assure that it is used in such an
environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
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 132 Gallon Dry Acid
Dissolution Unit is used exceeds the applicable RF compliance level above, the 132 Gallon Dry Acid Dissolution
Unit should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the 132 Gallon Dry Acid Dissolution Unit.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
P/N 460018 Rev. D
Guidance and manufacturer's declaration – electromagnetic immunity
IEC 60601 test level
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
Compliance level Electromagnetic environment – guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of 132 Gallon Dry Acid Dissolution Unit,
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of the
transmitter.
If abnormal performance is observed such as
loss of power, LEDs on control panel turn off
unexpectedly or the countdown timer stops
prematurely, additional measures may be
necessary, such as re-orienting or relocating
the equipment.
Recommended separation distance
3 Vrms
1.2 √P
150 kHz to 80 MHz
3 V/m
1.2 √P
80 MHz to 2.5 GHz
2.3 √P
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,
level in each frequency range.
Interference may occur in the vicinity of
equipment marked with the following symbol:
80 MHz to 800 MHz
800 MHz to 2.5 GHz
a
should be less than the compliance
b
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