Zeiss VISULAS YAG III, Руководство пользователя

Страница: 116 / 126

Electromagnetic compatibility
000000-1272-175-GA-GB-060613
110
Guidance and manufacturer’s declaration - electromagnetic immunity
The VISULAS YAG III is intended for use in the electromagnetic environment specified below. The user of the
VISULAS YAG III should assure that it is used in such an environment
Immunity test IEC 60601-1-2
test level Compliance level Electromagnetic environment -
guidance
Conducted RF
IEC 61000-4-6
3 V/m
150 kHz to 80
MHz 3 V
Portable and mobile RF communications
equipment should be used no closer to any
part of the VISULAS YAG III, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d = 1.2
Radiated RF
IEC 61000-4-3 3 V/m
80 MHz to 2.5
GHz 3 V/m
d = 1,2 80 MHz to 800 MHz
d = 2,3 800 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 fixed 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 and 800 MHz, the separation distance for 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
asses 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 VISULAS YAG III is used exceeds the applicable RF compliance
level above, the VISULAS YAG III should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the VISULAS YAG III.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
P
P
P