I-Tech PHYSIO 4 User Manual page 86

Guidance and manufacturer's declaration – ELECTROMAGNETIC IMMUNITY – FOR
EQUIPMENT AND SYSTEMS THAT ARE NOT LIFE-SUPPORTING
(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 I-
TECH PHYSIO 4/EMG is used exceeds the applicable RF compliance level above, I-TECH
PHYSIO 4/EMG should be observed to verify normal operation. If abnormal performance
is observed, additional measures may be necessary, such as re-orienting or relocating I-
TECH PHYSIO 4/EMG.
b) Over the frequency range 150kHz to 80MHz, field strengths should be less than [V
V/m.
Recommended separation distances between portable and mobile RF
communications equipment for I-TECH PHYSIO 4/EMG that are not life-supporting
I-TECH PHYSIO 4/EMG is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of I-TECH PHYSIO 4/EMG
can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and I-TECH PHYSIO 4/EMG
as recommended below, according to the maximum output power of the communications
equipment.
Separation distance according to the frequency of transmitter (m)
Rated
���������������� 150������������
maximum
�������� 800 ������������
output
power of
transmitter
(W)
0,01 0,12
0,1 0,38
0,2
1 1,20
1,8
2
10 3,80
100 12,00
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (m) can be determined 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.
Nota
1) At 80MHz and 800MHz, the separation distance for the higher frequency range applies.
2) These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects and people.
IACER Srl
���������������� 150������������
�������� 800 ������������
(ISM band)
0,2
0,63
– –
2,0
– –
– –
6,3
20
82
���������������� 800������������
���������������� 80������������
�������� 800 ������������
(a RF wireless for
comunication
0,12
0,38
–
1,20
–
–
3,80
12,00
]
1
�������� 6 ��������
radio
devices)
0,23
0,73
–
2,30
–
–
7,30
23,00
MNPG178