SAFETY
6 Model 3000T Operation Manual
Guidance and manufacturer’s declaration – Electromagnetic immunity
The Model 3000T monitor is intended for use in the electromagnetic environment specified below.
The customer or the user of the Model 3000T should insure that they are 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 2.5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the Model 3000T, 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 80 MHz to 800 MHz
d = 2.3
p 800 MHz to 2.5 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
a
, should be less than the
compliance level in each frequency range
b
Interference may occur in the vicinity of
the 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 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 radios, AM and FM radio broadcast, and TV broadcast cannot be predicted theoretically with accuracy.
To assess the electromagnetic environment due to fixed RF transmitters, and electromagnetic site survey should be
considered. If the measured field strength in the location in which the Model 3000T is used exceeds the applicable RF
compliance level above, the Model 3000T should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the Model 3000T.
b
Over the frequency range 150 KHz to 80 MHz, field strengths should be less than 3 V/m.
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