Mindray BeneView T8, Руководство по эксплуатации

Страница: 259 / 290

EMC
B-3
Guidance and Declaration - Electromagnetic Immunity
The patient monitor is suitable for use in the electromagnetic environment specified below. The
customer or the user of the patient monitor should assure that it is used in such an environment.
Immunity test IEC 60601 Test level Compliance level
Conduced RF IEC61000-4-6 3 Vrms
150k to 80M Hz 3 Vrms
(BIS, ICG: 1Vrms)
Radiated RF IEC61000-4-3 3V/m
80M to 2.5G Hz 3V/m
(Resp: 1V/m)
Electromagnetic environment - guidance
Portable and mobile RF communications equipment should be used no closer to any part of the
patient monitor, including cables, than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
Recommended Separation Distance:
P d
2 . 1
=
(BIS, ICG:
P d
5 . 3
=
)
P d
2 . 1
=
(Resp:
P d
5 . 3
=
) 80 to 800 MHz
P d
3 . 2
=
800M to 2.5GHz
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,
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: From 80 MHz to 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 patient monitor is used exceeds the applicable RF
compliance level above, the patient monitor should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the patient monitor.
b Over the frequency ranges 150kHz to 80MHz, field strengths should be less than 3V/m.