Technical specifications
72
Guidance and manufacturer’s declaration – electromagnetic immunity
These devices are intended for use in the electromagnetic environment specified below. The customer
or the user of the device should assure that the device is used in such an environment.
Electromagnetic environment—guidance
discharge (ESD)
IEC 61000-4-2
Floors should be wood, concrete or ceramic tile. If
floors are covered with synthetic material, the
relative humidity should be at least 30%.
transient/burst
IEC 61000-4-4
supply lines
±1 kV for
input/output lines
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment.
short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Ut) for 0.5 cycle
40% Ut (60% dip in
Ut) for 5 cycles
70% Ut (30% dip in
Ut) for 25 cycles
<5% Ut (>95% dip in
Ut) for 5 sec
240V) for 0.5 cycle
96V (60% dip in 240V)
for 5 cycles
168V (30% dip in
240V) for 25 cycles
<12V (>95% dip in
240V) for 5 sec
Mains power quality should be that of a typical
commercial or hospital environment.
If the user of the device requires continued
operation during power mains interruptions, it is
recommended that the device be powered from an
uninterruptible power source.
The internal battery will provide backup power of
eight hours.
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical
commercial or hospital environment.
Portable and mobile RF communications equipment
should be used no closer to any part of the device,
including cables, than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
d = 1.17 √P
d = 0.35 √P 80 MHz to 800 MHz
d = 0.70 √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 equipment
marked with the following symbol:
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.
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