Welch Allyn RetinaVue 100 Imager Directions For Use Manual page 58

54 General compliance and standards
Surge
IEC 61000-4-5
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11
The 901103 is intended for use in the electromagnetic environment specified below. The customer or the user of the
901103 should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Note1: 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
Electromagnetic immunity
± 1 kV differential ± 1 kV differential
mode mode
± 2 kV common mode ± 2 kV common mode
>95% dip in 0.5 cycle >95% dip in 0.5 cycle
60% dip in 5 cycles 60% dip in 5 cycles
30% dip for 25 cycles 30% dip for 25 cycles
>95% dip in 5 seconds >95% dip in 5 seconds
Electromagnetic immunity
IEC 60601 test level Compliance level
3 Vrms 3 Vrms
150 kHz to 80 MHz
3 V/m 80 MHz to 1 GHz 3 V/m
Welch Allyn RetinaVue™ 100 Imager
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment. If the user
of the 901103 requires continued operation
during power mains interruptions, it is
recommended that the 901103 be powered
from an uninterruptible power supply or a
battery.
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the 901103, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
d= (1.17)
d= (1.17) 80 to 800 MHz
d= (2.33) 800 MHz to 2,5 GHz
whereP is the maximum output power rating of
the transmitter in watts (W) andd is the
recommended separation distance in meters
(m). Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
a
survey , should be less than the compliance
b
level in each frequency range . Interference
may occur in the vicinity of equipment marked
with the following symbol: