Compex Wireless - Manual (Page 147)

146
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC IMMUNITY
The Compex Wireless stimulator is intended for use in the electromagnetic environment specified below. The customer or the user of the
Compex Wireless stimulator should assure that it is used in such an environment.
IMMUNITY TEST IEC 60601
TEST LEVEL
COMPLIANCE
LEVEL
ELECTROMAGNETIC
ENVIRONMENT - GUIDANCE
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
1.4 GHz to 2,7 GHz
10 V/m
26MHz to 1GHz
3Vrms
3V/m
10V/m
Portable and mobile RF communications
equipment should be used no closer to any part
of the Compex Wireless stimulator, including
cables, than the recommended separation
distance calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance
d = 1.2 √P
d = 1.2 √P 80 MHz to 800 MHz
d = 2.3 √P 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 metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site surveya,
should be less than the compliance level in each
frequency rangeb.
Interference may occur in the vicinity of
equipment marked with the following symbol:
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 affected by absorption and reflection 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
Compex Wireless stimulator is used exceeds the applicable RF compliance level above, the Compex Wireless stimulator should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating
the Compex Wireless stimulator.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND
MOBILE RF COMMUNICATIONS EQUIPMENT AND THE COMPEX WIRELESS STIMULATOR
The Compex Wireless stimulator is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the Compex Wireless stimulator can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and the Compex Wireless stimulator as recommended
below, according to the maximum output power of the communications equipment.
Rated maximum output power
of transmitter W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
d = 1.2 √P
80 MHz to 800
MHz
d = 1.2 √P
800 MHz 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
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.