ADC Adtemp 429 User Manual page 17

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The 429 IR Thermometer is intended for use in the electromagnetic environment
specified below. The customer or the user of the 429 IR Thermometer should as-
sure that it is used in such an environment.
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Radiated RF
IEC 61000-4-3
klqb N At 80 MHz and 800 MHz, the higher frequency range applies.
klqb O 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 429 IR Thermometer is used exceeds
the applicable RF compliance level above, the 429 IR Thermometer should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the 429 IR Thermometer.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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3V/m
80MHz–
2.5GHz
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Portable and mobile RF
3V/m
communications equipment should
be used no closer to any part of the
429 IR Thermometer, including
cables, than the recommended
separation distance calculated
from the equation applicable to
the frequency of the transmitter.
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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 survey, should
be less than the compliance level
in each frequency range.
Interference may occur in the
vicinity of equipment marked with
the following symbol:
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