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22
Guidance and manufacturer’s declaration – electromagnetic immunity
The Cryomatic is intended for use in the electromagnetic environment specified below. The customer or user of the Cryomatic should assure that it
is used in such an environment.
Immunity
Test
IEC60601
test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150kHz -
80MHz
3 V/m
80MHz -
2.5GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment should be used no closer to any part of the
Cryomatic, including cables, than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
Recommended separation distance
d = 1.2
√
P
d = 1.2
√
P 80MHz - 800MHz
d = 2.3
√
P 800MHz – 2.5GHz
where P is the maximum power output of the transmitter in watts (W) according to the
transmitter manufacturer and d is the recommended separation distance in metres (m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site surveya,
should be less than the compliance level in each frequency range
b
.
Interference may occur in the vicinity of
equipment marked with this symbol:
NOTE 1: At 80MHz and 800MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by the 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 Cryomatic is used exceeds the applicable RF compliance level above, the Cryomatic should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the Cryomatic.
b: Over the frequency range 150kHz to 80MHz, field strengths should be less than 3 V/m.
Annex I - EMC Statement and Guidelines
