User's Manual
26
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
e WiSe™ 19" HDTV Surgical Display is intended for use in the electromagnetic environment specied below.
e customer or the user of the WiSe™ 19" HDTV Surgical 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 WiSe 19"
HDTV Surgical Display, including its 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: ese 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 WiSe™ 19" HDTV Surgical Display is 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 WiSe™ 19" HDTV Surgical Display.
(b) Over the frequency range 150 kHz to 80 MHz, eld strengths should be less than 3 V/m.
Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the WiSe™ 19"
HDTV Surgical Display
e WiSe™ 19" HDTV Surgical Display is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. e user of the WiSe™ 19" HDTV Surgical Display can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
WiSe™ 19" HDTV Surgical Display as recommended below, according to the maximum output power of the communications
equipment.
Rated maximum output power (W)
of transmitter
Separation distance (m) according to frequency of transmitter
150 kHz to 80 MHz
d = 1.17√P
80 kHz to 800 MHz
d = 1.17√P
800 kHz to 2.5 GHz
d = 1.17√P
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.70 3.70 7.37
100 11.70 11.70 23.30
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.
Note 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: ese guidelines may not apply in all situations. Electromagnetic propagation is aected by absorption and reection
from structures, objects, and people.