46
Power frequency
(50/60Hz)
magnetic field
IeC 61000-4-8 Table
3a/ m
3a/ m
If the image distortion occurs, it is necessary position the
Model JC-114N (MH-DR103) image intensifier further
from sources of power frequency magnetic fields or to
install magnetic shielding. The power frequency magnetic
field should be measured in the indented installation
location to assure that it is sufficient low
NoTe : ur is the a.c main voltage prior to application the test level
Guidance of Manufacturer's Declaration-Electromagnetic Immunity
The model JC-114N (MH-DR103) is intended for use in the electromagnetic environment specified below. The customer or the user of the model
JC-114N (MH-DR103) should assure that it is used in such an environment
IMMuNITy TesT
IeC60601
TesT level
CoMPlIaNCe
level
eleCTRoMaGNeTIC eNvIRoNMeNT- GuIDaNCe
conducted Rf
IeC61000-4-6
3vrms
150kHz to
80MHz
3vrms
Portable and mobile communication equipment should be used no closer to any part
of the model JC-114N (MH-DR103) uding cables, than the recommended separation
distance calculated from the equation applicable to the frequency of the trans former.
Recommended separation distance d=1.2√p
Radiated Rf
IeC61000-4-3
3v/m
80MHz
to2.5GHz
3v/m
d=1.2√p 80MHz to 800MHz
d=2.3√p 800MHz to 2.5GHz
Where p is the maximum output power rating of transmitter in watts (W) according to
the transmitter manufacturer and d is the recommended separation distance in meters
(m). field strengths fix Rf transmitter as determined by an electromagnetic site survey*
should be less than the compliance level in each frequency range*Interference may
occur in the vicinity of equipment marked with following symbol:
NoTe 1: at 80MHz and 800MHz, the higher frequency applies. 61000-4-5
NoTe 2: these guidance’s may not apply in all situations. electromagnetic propagation is effected by absorption and reflection from structures, objects
and people.
* field strength from fixed transmitters such as base stations for radio (cellar/cordless) telephones ,land mobile radio, amateur radio, aM and fM radio
broadcast and Tv broadcast cannot be predicted theoretically with accuracy. To access to electromagnetic environment duo to fixed Rf transmitter,
an electromagnetic site survey should be considered. If the measured field strength in the location in which the model JC-114N (MH-DR103) is used
exceeds the applicable Rf compliance level above, the model JC-114N (MH-DR103) should be observed, additional measures may be necessary, such
as re-orienting or relocation the model
* over the frequency range 150 kHz to 30MHz field strengths should be less than 3 v/m
