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gUIDELINES AND MANUFACTURER’S DECLARATION
guidelines and manufacturer’s declaration – electromagnetic interference immunity
The deltastream heater cooler is designed for operation in an electromagnetic environment as described below. The
customer or user of the deltastream heater cooler should ensure that it is operated in this type of environment.
Interference immunity
testing
IEC 60601 test level
Compliance level
Electromagnetic environment
guidelines
HF conducted
disturbances as per
IEC 61000-4-6
HF radiated
disturbances as per
IEC 61000-4-3
3 V
eff
150 kHz to 80 MHz
3 V
eff
80 MHz to 2,5 GHz
3 V
3 V/m
Portable and mobile telecommunica-
tions equipment should not be used at
a closer distance from the unit, includ-
ing the cable, than the recommended
safety distance calculated using the
equation that applies to the transmis-
sion frequency.
Recommended safe distance:
d = 1.17 √P
d= 1.17 √P for 80 MHz to 800 MHz
d= 2.33 √P for 800 MHz to 2.5 GHz
with P as the maximum rated output of
the transmitter in watts (W) as per the
transmitter manufacturer’s data and d
as the recommended safe distance in
meters (m).
The field strength of stationary radio
transmitters should at all frequencies
be a) less than the compliance level as
per a test performed on site, and b)
no interference should be possible in
the vicinity of devices that display the
following sign.
Note 1
The higher frequency range applies to 80 MHz and 800 MHz.
Note 2
These guidelines may not apply in all cases. The spread of electromagnetism is influenced by the absorption and
reflection of buildings, objects and people.
a. The field strength of stationary transmitters such as base stations of mobile phones and land mobile radios, amateur radio stations, AM and FM
radio and TV transmitters cannot be precisely predetermined in theory. A study of the location should be considered in order to determine the
electromagnetic environment with regard to the stationary transmitters. If the measured field strength at the location where the unit is being
used exceeds the aforementioned conformity level, the unit should be observed in order to verify proper functioning. If unusual performance
characteristics are observed, additional measures may be necessary such as a different alignment or a different location for the unit.
b. The field strength should be less than 3 V/m above a frequency range of 150 kHz to 80 MHz.
