Guidelines and declaration of manufacturer
HICO-VARIOTHERM 550
69
Table 4
Guidance and manufacturer declaration – Electromagnetic immunity
The HICO-Variotherm 550 is designed for operation in the electromagnetic environment listed below.
The customer or user of the HICO-Variotherm 550 should ensure that the device is used in such an environment.
Emission tests
IEC 60601 test level
Compliance level
Electromagnetic environment -
guidance
Conducted RF interference
according to IEC 61000-4-
6
Radiated RF interference
according to IEC 61000-4-
3
3 V
actualvalue
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 V
3 V/m
Portable and mobile radio equipment
should be used no closer to the
HICO-Variotherm 550 and its power
cables, than the recommended safety
distance calculated from the equation
applicable to the frequency transmitter.
Recommendet safety distance:
d = 1,2
√𝑃𝑃
d = 1,2
√𝑃𝑃
80 MHz to 800 MHz
d = 2,3
√𝑃𝑃
800 MHz to 2,5 GHz
Where P is the output power rating
of the transmitter in watts (W)
according to the transmitter
manufacturer and d is the recommended
safety distance in
meters (m). The field strength from a
stationary radio transmitter, according to
an onsite survey
a
is less than the
compliance level
b
for all frequency
ranges.
In the environment of equipment marked
with the following symbol, interferences
are possible.
NOTE 1: At 80 MHz and 800 MHz, the higher the frequency range applies.
NOTE 2: These guidelines may not apply in all situations. The propagation of electromagnetic waves is affected by
the absorption and reflection from structures, objects and people.
a
Field strength from fixed transmitters such as base stations for radio (cellular/wireless) telephones and land mobile
radios, amateur radio, AM/FM radio stations and TV stations cannot be predicted theoretically with accuracy. To
determine the electromagnetic environment of a stationary transmitter, a site survey should be considered. If the
measured field strength in the location in which the HICO-Variotherm 550 is used exceeds the conformity level
listed above then the HICO-Variotherm 550 should be monitored to verify normal operation. If abnormal
performance is observed, additional measures might be necessary, such as readjusting the HICO-Variotherm 550
or changing to another location.
b
The field strength is less than 3 V/m over the frequency range of 150 kHz to 80 MHz.
