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Technical Information
Table 17: Recommended Separation Distances
This table details the recommended separation distances between portable and mobile RF
communications equipment and this device.
This device is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. Users of this device can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communication equipment (transmitters) and the
device as recommended below, according to maximum output power of the communications equipment.
Rated Maximum Output
Power of Transmitter
W
0.01
0.1
1
10
100
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.
NOTES:
• At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
Equipment Response Time
If the signal from the sensor is inadequate, the last measured values freeze for 20 seconds
and are then replaced with dashes.
Equipment Delays
Display Update Delay
Alarm Signal Generation Delay
Separation Distance According to Frequency of Transmitter
150 kHz to 80 MHz
d
=
1.17 P
0.12
0.37
1.2
3.7
12
Delay
1.5 seconds
0 seconds
80 MHz to800 MHz
d
=
1.17 P
0.12
0.37
1.2
3.7
12
800 MHz to 2.5 GHz
d
=
2.33 P
0.23
0.74
2.3
7.4
23
59
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