Physiolaser
olympic 500
Version 1.4 June 2007
40
Guidelines and manufacturer’s declaration – Electromagnetic immunity – for the laser device
without life supporting function
Immunity tests
IEC 60601-test level
Conformity level Electromagnetic ambient conditions - guidelines
HF-disturbance
variables
(transmission)
according to IEC
61000-4-3
HF-disturbance
variables (radiation)
according to IEC
61000-4-3
3 Veff
150 kHz up to 80 MH
3 V/m
80 MHz up to 2,5 GHz
conforms
conforms
Portable and mobile radio sets must not be operated in
a distance to the laser device and the leads less than
the recommended protective distance what was
calculated according to the equation for the
transmission frequency.
Recommended protective distance:
d = 1,2
√
P
d = 1,2
√
P for
80 MHz up to 800 MHz
d = 2,3
√
P for
800 MHz up to 2,5 GHz
with P as power rating of the transmitter in Watt (W)
according to data from the manufacturer of the
transmitter and as recommended protective distance in
meter (m).
According to a local
a
investigation the field intensity for
all frequencies of immobile radio transmitters should be
less than the conformity level
b
.
Interference is possible in the surroundings of devices
carrying the following signs.
Note 1
At 80 MHz and 800 MHz the higher frequency range is applied.
Note 2
These guidelines are not applicable in all cases. The propagation of electromagnetic quantities is influenced by the absorption and reflection of buildings, items and
human beings.
a
It is not possible to predict theoretically the field strength of immobile transmitters like base stations of mobile phones and mobile land radio sets, amateur radio stations,
AM and FM television and radio broadcasting transmitters. In order to determine electromagnetic ambient conditions with regard to immobile transmitters a study of the location
should be taken into consideration. If the field strength measured in the place where the laser device is operated exceeds the above mentioned conformity level the laser device
should be watched to proof its function in accordance to the requirements. Unusual performance data may require additional measures, for instance change of orientation or
different location of the laser device.
b
Above the frequency range from 150 kHz to 80 MHz the field strength should be less than 3 V/m.
Recommended protective distance between portable and mobile HF-telecommunication devices
and the laser device without life supporting function
Recommended protective distance between portable and mobile HF-telecommunication devices and the laser device
The laser device is designed for the operation in electromagnetic ambient conditions where HF-disturbance variables are
controlled. Client or user of the laser device can help to avoid electromagnetic disturbances by keeping the minimum distance
between portable and mobile HF-telecommunication devices (transmitters) and the laser device as indicated below, dependent
on the power output of the communication device.
Protective distance dependent on the transmitting frequency
m
Power rating of the transmitter
W
150 kHz up to 80 MHz
d = 1,2
√
P
80 MHz up to 800 MHz
d = 1,2
√
P
800 MHz up to 2,5 GHz
d = 2,3
√
P
0,01 0,12 0,12 0,23
0,1
0,38 0,38 0,73
1
1,2 1,2 2,3
10 3,8 3,8 7,3
100 12 12 23
If the maximum power rating for certain transmitters is not given in the above table the recommended protective distance d in
metres (m) can be determined by using the equation indicated in the respective column, where P is the maximum power rating
of the transmitter in Watt (W) according to the manufacturer of the transmitter.
Note 1 At 80 MHz and 800 MHz the higher frequency range is applied
Note 2 These guidelines are not applicable in all cases. The propagation of electromagnetic quantities is influenced by the
absorption and reflection of buildings, items and human beings.
