Fresenius Medical Care T688B Series, Instruction Manual

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FRESENIUS MEDICAL CARE MEDICAL TREATMENT CHAIR INSTRUCTION MANUAL - T688B Series
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IFU T688B V1 May 2019
Guidance an
d MANUFACTURER’S declaration – electromagnetic IMMUNITY
Guidance and manufa
cturer’s declaration – electromagnetic immunity
The T688B Series Chair is intended for use in the electromagnetic environment specified below. The
customer or the user of the T688B Series Chair 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
3Vms
3 V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the
T688B Series Chair ,
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
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 symbol:
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 [ME EQUIPMENT or ME SYSTEM] is used exceeds the applicable RF compliance
level above, the [ME EQUIPMENT or ME SYSTEM] should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re-orienting or
relocating the [ME EQUIPMENT or ME SYSTEM].
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [ V 1] V/m.