Barco MDNC-2221 User Manual page 38

7. Important information
Immunity test
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is af-
fected by absorption and reflection from structures, objects and people.
Recommended separation distance
The NIO 2MP LED Display is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer of the user of the NIO 2MP LED Display can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF com-
munications equipment (transmitters) and the NIO 2MP LED Display as recommended below, according
to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
0.01
0.1
1
10
100
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
3. 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 NIO 2MP LED Display is used exceeds the applicable RF compliance level above, the NIO 2MP LED Display
should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as
re-orienting or relocating the NIO 2MP LED Display.
4. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
5. For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter. Where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
36
IEC 60601
Test levels
Separation distance according to frequency of transmitter
5
150kHz to 80MHz
d=1.2√P
0.12
0.38
1.2
3.8
12
Compliance level
80MHz to 800MHz
d=1.2√P
0.12
0.38
1.2
3.8
12
K5903058 NIO 2MP LED DISPLAY 04/03/2014
Electromagnetic
environment –
guidance
3
survey, should be less
than the compliance
level in each frequency
4
range.
Interference may occur in
the vicinity of equipment
marked with symbol:
800MHz to 2.5GHz
d=2.3√P
0.23
0.73
2.3
7.3
23