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Recommended separation distance
OMRON M24/7 is intended to be used in electromagnetic environment with controlled RF
disturbances. The purchaser or user of M24/7may help to reduce electromagnetic disturbances
by de¿ ning the separation distance between the transportable or mobile RF telecommunication
equipment (transmitters) and OMRON M24/7, depending on the highest output power of the
telecommunication equipment.
Separation distance in function of the frequency of the
transmitter [m]
The highest
output
power of the
transmitter [W]
150KHz –
80MHz
d=[3.5/V
1
]¥P
80MHz –
800MHz
d=[3.5/E
1
]¥P
800MHz – 2.5GHz
d=[7/E
1
]¥P
0.01 Not applicable 0.12 0.23
0.1 Not applicable 0.38 0.73
1 Not applicable 1.2 2.3
10 Not applicable 3.8 7.3
100 Not applicable 12 23
If this table does not contain the highest output power of the transmitter, the d separation
distance [m] can be calculated by the formula, depending on the frequency of the transmitter,
where P is the rated highest output power of the transmitter [W].
1. note: in case of frequency 80MHz or 800 MHz, the formula for the higher range is
applicable.
2. note: These are guidelines. Actual conditions may vary.
IM_EN.indd 25 19/07/2012 14:30:03