Laser AS 50, Инструкция по эксплуатации

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AS 50
V. 1.2, 26.11.2009 18
40% U
T
(60% dip of U
T
) for 5
periods
70% U
T
(30% dip of U
T
) for 25
periods
< 5% U
T
(> 95% dip of U
T
) for 5 s
supply it is recommended to feed the laser
device from a system without interruption or a
battery.
Magnetic field at supply
frequency (50/60 Hz)
according to IEC 61000-4-8 3 A/m conforms Magnetic fields at mains frequency should have
the typical values for business and hospital
ambient conditions.
Note: U
T -
alternating voltage mains before the application of the test level.
12.5. 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.