APPENDIX A - EMC TABLES
GUIDANCE AND MANUFACTURER’S DECLARATION –
ELECTROMAGNETIC IMMUNITY
The HydraTherm Composite Heating Unit is intended for use in the electromagnetic
environment specified below. The customer or the user of the HydraTherm Composite
Heating Unit should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,7 GHz(1)
6 Vrms
3 V/m
Portable and mobile RF
communications equipment should
be used no closer to any part
of the [ME EQUIPMENT or ME
SYSTEM], including cables, than the
recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2,7 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 meters (m).
Field strengths from fixed RF
transmitters, as determined
by an electromagnetic site
survey, ashould be less than the
compliance level in each frequency
range. b
Interference may occur in the
vicinity of equipment marked with
the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
aected 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 HydraTherm
Composite Heating Unit is used exceeds the applicable RF compliance level above, the
HydraTherm Composite Heating Unit should be observed to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as re-
orienting or relocating the HydraTherm Composite Heating Unit.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m.
(1) Additionally the test frequencies and levels in Table 9 of IEC 60601-1-2: 2014 were
applied to address higher levels of immunity to RF wireless communications equipment.
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