SCALESON S240 Instrucciones De Uso página 30

13. Note on electromagnetic compatibility
Guidelines and manufacturer's declaration - electromagnetic immunity
The S240 thermometer is intended for use in the ELECTROMAGNETIC ENVIRONMENT specified below. The customer
or the user of the S240 thermometer should ensure that it is used in such an environment.
Immunity test
Conducted RF IEC
61000-4-6
Radiated RF
IEC 61000-4-3
NOTE 1: At 90 MHz and 800 MHz the higher frequency range applies
NOTE 2: These guidelines may not be applicable in all cases. The propagation of electromagnetic quantities is influenced by
absorptions and reflections of buildings, objects and people.
a) The field strength of stationary transmitters, such as base stations of radio telephones and mobile land radios, amateur radio sta-
tions, AM and FM radio and television transmitters cannot be predicted theoretically with any accuracy. To determine the electromag-
netic environment with regard to stationary transmitters, a study of the site should be considered. If the measured field strength at the
site where the equipment is used exceeds the above compliance level, the equipment should be observed to verify that it is functioning
as intended. If unusual performance characteristics are observed, additional measures may be necessary, such as changing or reloca-
ting the equipment.
b) Over the frequency range from 150 kHz to 80 MHz, the field strength should be less than 3 V/m.
30
IEC 60601-test Compliance level
level
3 Vrms N/A
150 kHz to 80 MHz
3 V/m 3 V/m
80 kHz to 2,5 GHz
Electromagnetic environment -
guidance
Portable and mobile RF
communications equipment should be
used at no less distance from the
thermometer, including the leads, than
the recommended separation distance,
calculated according to the equation
appropriate for the transmission
frequency.
Recommended separation distance:
d = 1,2 √P
d = 1,2 √P
80 MHz to 800 MHz
d = 2,3 √P
800 MHz to 2,5 MHz
where P is the rated power of the
transmitter in watts (W) according to
the transmitter manufacturer's
specifications and d is the
recommended safety distance in
metres (m).
Field strengths form fixed RF
transmitters, as determined by an
electromagnetic site survey, should be
less than the compliance b level in each
frequency range. lnterference may
occur in the vicinity of equipment
marked with the following symbol: