23
Electrical fast
transient/burst
IEC61000-4-4
± 2kV for power supply lines
± 1kV for input/output lines
± 2kV line to ground
± 1kV line to line
Mains power quality should be that
of a typical commercial or hospital
environment�
Surge
IEC61000-4-5
± 1kV dierential mode
± 2kV common mode
± 1kV dierential mode
± 2kV common mode
Mains power quality should be that
of a typical commercial or hospital
environment
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC61000-4-11
• <5% U
T
(>95% dip in Ut)
for 0�5 cycle
• 40% U
T
(60% dip in Ut) for
5 cycles
• 70% U
T
(30% dip in Ut) for
25 cycles
• <5% U
T
(>95% dip in Ut)
for 5 sec�
• <5% UT (>95% dip in Ut)
for 0�5 cycle
• 40% U
T
(60% dip in Ut) for
5 cycles
• 70% U
T
(30% dip in Ut) for
25 cycles
• <5% U
T
(>95% dip in Ut)
for 5 sec
Mains power quality should be
that of a typical commercial or
hospital environment� If the user of
the transmitter requires continued
operation during power mains
interruptions, it is recommended
that the Wireless Transmitter be
powered from an uninterruptible
power supply or a battery�
Power frequency
(50/60Hz) magnetic
eld
IEC 61000-4-8
3�0 A/m 3�0 A/m Power-frequency magnetic
elds should be at levels
characteristic of a typical location
in a typical commercial or hospital
environment�
Note: U
T
is the AC mains voltage prior to application of the test level�
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
The VisionPro 26” LED Display and the VisionPro SYNK 26” Wireless LED Display are intended for use in the electromagnetic
environment specied below�
The customer or the user of the display should ensure that it is used in such an environment�
Immunity Test IEC 60601 Test level Compliance Level Electromagnetic Environment - Guidance
Portable and mobile RF communications equipment should
be used no closer to any part of the displays, including
their cables, than the recommended separation distance
calculated from the equation applicable to the frequency of
the transmitter�
Recommended Separation Distance:
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
3 V d = 1�17√P
Radiated RF
IEC 61000-4-3
3 V/m
80MHz to 2�5 GHz
3 V/m d = 1�17√P 80 MHz to 800 MHz
d = 2�33√P 800 MHz 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 meters (m)�
Field strengths from xed 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 aected by absorption and reection
from structures, objects, and people�
(a) Field strengths from xed 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 xed RF transmitters, an electromagnetic site survey should be considered� If the
measured eld strength in the location in which the VisionPro 26” LED Display and the VisionPro SYNK 26” Wireless LED Display
are used exceeds the applicable RF compliance level above, the display and transmitter should be observed to verify normal
operation� If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the
display�
(b) Over the frequency range 150 kHz to 80 MHz, eld strengths should be less than 3 V/m�