Guidance and manufacturer’s declaration – electromagnetic immunity
The PDCare 904 nm Laser by SYMBYX is intended for use in the electromagnetic environment specified below. The customer or the user of this laser
should assure that it is used in such an environment.
Electromagnetic environment - guidance
Portable and mobile RF communications equipment should be used no closer to any part of the
PDCare 904 nm, including cables, than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter
Recommended separation distance
Radiated RF
IEC 61000-4-3
10 V/m
(Home Healthcare
environment)
Immunity to RF wireless
communication equipment
(Table 9) 385-5800 MHz
9-28 V/m
10 V/m
(Home Healthcare
environment)
Immunity to RF wireless
communication equipment
(Table 9) 385-5800 MHz
9-28 V/m
80 MHz to 800 MHz
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 80MHz and 800MHz, the higher frequency range applies.
NOTE 2: Guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflected 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 assess 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 PDCare 904 nm Medical Laser is used exceeds the applicable RF compliance level above, the PDCare 904 nm laser should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the PDCare 904 nm Laser by SYMBYX.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.
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