Riester ri-thermo fastPRObe, Instructions For Use Manual

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a.)
Field strengths from fixed transmitters, such as base stations for radio (cellular/
cordless) telephones and landmobile radios, amateur radio, AM and FM radio bro-
adcast and TV broadcast cannot be predicted theoreticallywith accuracy. To assess
the electromagnetic environment due to fixed RF transmitters, an electromagnetic
sitesurvey should be considered. If the measured field strength in the location in
which the ri-
thermo ®
fastPRObe Thermometer is used exceeds the applicable RF
compliance level above, the ri-
thermo ®
fastPRObe Thermometer should be ob-
served to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the ri-
thermo ®
fastPRObe Thermometer.
b.) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
3 V/m.
Recommended separation distances between
portable and mobile RF communications equipment and the
ri- thermo
®
fastPRObe Thermometer.
The ri- thermo
®
fastPRObe Thermometer is intended for use in an electro-
magnetic environment in which radiated RF disturbances are controlled. The
customer or the user of the
ri- thermo
®
fastPRObe Thermometer can help
prevent electromagnetic interference by maintaining a minimum distance bet-
ween portable and mobile RF communications equipment (transmitters) and
the
ri-
thermo ®
fastPRObe Thermometer as recommended below, according
to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
(W)
Separation distance according to frequency of trans-
mitter
(m)
150 kHz to 80
MHz
d =12√P
80 MHz to 800
MHz
d =1,2√P
800 MHz to
2,7 GHz
d =2,3√P
0,01 0,12 0,12 0,23
0,1
0,38 0,38 0,73
1 1,2 1,2 2,3
10
3,8 3,8 7,3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recom-
mended separation distance d inmetres (m) can be estimated using the equation
applicable to the frequency of the transmitter, where P is themaximum output pow-
er rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency
range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propaga-
tion is affected by absorption andreflection from structures, objects and people.