Recommended Safe Distance Between Portable And Mobile Hf Telecommunications Equipment; And The Intrasurg 300 - KaVo INTRAsurg 300 Instructions For Use Manual

Instructions for use INTRAsurg 300 / INTRAsurg 300 plus
9 Details on electromagnetic compatibility | 9.4 Recommended safe distance between portable and mobile
HF telecommunications equipment and the INTRAsurg 300
Immunity tests
Conducted HF distur‐
bances according to
IEC 61000-4-6
Radiated HF disturban‐
ces according to IEC
61000-4-3
IEC 60601 test level
3 V
eff
150 kHz to 80 MHz
10 V/m
80 MHz to 2.5 GHz
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not be applicable in every case. The spread of
electromagnetic waves is absorbed and reflected by buildings, objects and people.
The field strength of stationary transmitters such as base stations of mobile tele‐
a
phones and land radio devices, amateur radio stations, AM and FM, radio and tel‐
evision broadcasters cannot be theoretically predetermined. To determine the elec‐
tromagnetic environment of stationary transmitters, a study of the location should
be considered. When the measured field strength at the location on which the IS
300 is used, exceeds the conformity level, the IS 300 should be watched to ensure
that it is functioning as per the correct usage. Should unusual performance features
be observed, additional measures may be required, such as e.g. a different align‐
ment or another location for the IS 300.
Within the frequency range of 150 kHz to 80 MHz, the field strength should be less
b
than 3V V/m.
eff
9.4 Recommended safe distance between portable and mobile HF
telecommunications equipment and the INTRAsurg 300
The IS 300 is for use in an environment like the one cited below. The customer or
user of the IS 300 can help to avoid electromagnetic faults by keeping to the mini‐
mum distance apart between portable and mobile HF-telecommunication devices
(transmitters) and the IS 300 - dependent on the output lines for the communication
device - as given below.
Conformance level
3 V
eff
3 V/m
65/66
Electromagnetic environment -
guidelines
Portable and mobile radio devices
should not be used closer to the IS
300 including the wires, than the re‐
commenced safe distance calcula‐
ted using the equation for the trans‐
mission frequency.
Recommended safe distance:
d = [3.5/3] = 1.17
P P
d= [3.5/3] =1.17 for 80 MHz to
P P
800 MHz
d= [7.0/3] =2.33 for 800 MHz
P P
to 2.5 GHz
with P as the maximum rated power
of the transmitter in Watts (W) ac‐
cording to the transmitter manufac‐
turer, and d as the recommended
safe distance in meters (m).
The field strength of stationary ra‐
dio transmitters should be less than
the conformance level at all fre‐
quencies in an on-site check
Disturbances are possible close to
devices that have the following
symbol.
.
a b