Ecoray HF-525Plus - Page 224

224
Technical Publication Document NO: SYSTEM-007-ENG (Ver.1.1)
HF-525Plus Installation, Operation and Service Manual
There may be interference near equipment with the
mark below.
Note 1: A higher frequency range is applied from 80 MHz and 800 MHz.
Note 2: This guideline does not apply to all situations since electromagnetic waves are affected by the
absorption and reflection of buildings, objects, and people.
a
The field intensity from fixed transmitters, such as radio (portable, wireless), telephone, base radio station on
ground, amateur radio, AM and FM radio broadcast and TV broadcast, cannot theoretically be forecasted
accurately. Electromagnetic locations should be measured to evaluate the electromagnetic environment
produced by fixed RF transmitters. If the intensity of the field measured at the location of HF-525 PLUS
exceeds the permissible RF level, HF-525 PLUS must be checked for normal operation. If HF-525 PLUS
exhibits abnormal performance, additional action, such as relocating or redirecting the equipment, is required.
b
The field intensity for frequency of 150 kHz - 80 MHz should be less than 3 V/m.
Recommended separation distance between
portable and mobile RF communication device and X1 & T1
HF-525 PLUS is manufactured to be used in an electromagnetic environment where radioactive RF is
controlled. Customers and users of HF-525 PLUS may prevent electromagnetic wave interference by
maintaining the minimum distance between portable and mobile RF communication devices (transmitters) and
the HF-525 PLUS as recommended below by the maximum output of communication devices.
Maximum rated output
of transmitter
W
Separation distance depending on transmitter frequency
M
150 kHz - 80 MHz
80 MHz - 800 MHz
800 MHz - 2,5 GHz
0.01
0.117
0.117
0.233
0.1
0.369
0.369
0.738
1
1.167
1.167
2.333
10
3.689
3.689
7.379
100
11.667
11.667
23.333
For transmitters with a maximum rated output not mentioned above, the recommended separation distance
(m) may be calculated using the equation for transmitter frequency. In this case, P is the maximum rated
output (W) of the transmitter according to its manufacturer.
Note 1: A higher frequency range is applied from 80 MHz and 800 MHz.
Note 2: This guideline does not apply to all situations since electromagnetic waves are affected by absorption
and reflection of buildings, objects, and people.