Zeiss KSK 150 FC Instructions For Use Manual page 81

KSK 150 FC
Interference re- IEC 60601
sistance test level
Tests
Conducted RF dis- 3 V
turbances as de-
150 kHz to 80 MHz
scribed in
EN 61000-4:-6
Radiated RF distur- 3 V
bances as de-
80 MHz to 2.5 GHz
scribed in
EN 61000-4:-3
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 influ-
enced by absorption and reflection by structures, objects and persons.
a
In theory, the field strengths of stationary transmitters such as base stations for cell phones and mobile land
radio equipment, amateur radio stations, AM and FM radio and TV transmitters cannot be predicted accu-
rately. To assess the electromagnetic environment with respect to stationary RF transmitters, a site study of
the electromagnetic phenomena should be considered. If the field strength measured at the location where
the device is used exceeds the above compliance levels, the device must be monitored to verify proper func-
tion. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or re-
locating the ME equipment or ME system.
b
Field strengths should be less than 3 V/m for the 150 kHz to 80 MHz frequency range.
Version 7.1
G-30-1158-en
Compliance level Electromagnetic environment -
3V
actual value
3 V/m
actual value
Guidelines
Portable and mobile radio communication
equipment should not be used closer to the de-
vice KSK 150 FC, including cables, than the rec-
ommended safety distance that is calculated
using the equation applicable to the transmis-
sion frequency involved.
Recommended safety distance:
,
d 1 2 P
=
,
d 1 2 P
for 80 MHz to 800 MHz
=
,
d 2 3 P
for 800 MHz to 2.5 GHz
=
where P is the output power rating of the trans-
mitter in watts (W) according to the transmitter
manufacturer's specifications and d is the rec-
ommended safety distance in meters (m). The
field strength of stationary transmitters as deter-
mined by a site survey should be
compliance level in all frequency ranges.
Interference may occur in the vicinity of equip-
ment marked with the following symbol.
System Data
a
less than the
b
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