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Lubricated Rotary Vane Laboratory Vacuum Systems
1.5
Electromagnetic Immunity (cont.)
The TotalAlert Embedded control system is intended for use in the electromagnetic environment specified below. The
customer or the user of the TotalAlert Embedded control system should assure that it is used in such an environment.
Immunity test
Conducted RF
3 Vrms
IEC 61000-4-6
150 kHz to 80 MHz
Radiated RF
3 V/m
IEC 61000-4-3
80 MHz to 2,5 GHz
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 affected 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 TotalAlert Embedded control
system is used exceeds the applicable RF compliance level above, the TotalAlert Embedded control system should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be neces-
b
sary, such as reorienting or relocating the TotalAlert Embedded control system.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
4107 9021 88.01
Guidance and manufacturer's declaration - electromagnetic immunity
IEC 60601
Compliance level
test level
3 Vrms
3 V/m
Electromagnetic environment - guidance
Portable and mobile RF communications equip-
ment should be used no closer to any part of the
TotalAlert Embedded control system, including ca-
bles, 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
d = 2,3√P
where P is the maximum output power rating
of the transmitter in watts (W) according to the
transmitter manufacturer and d is the recom-
mended separation distance in metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
should be less than the compliance level in each
frequency range.
Interference may occur in the vicinity of equip-
ment marked with the following symbol:
1-3
80 MHz to 800 MHz
800 MHz to 2,5 GHz
b
a
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