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19System Specifications
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Guidance and Manufacturer’s Declaration - Electromagnetic Emissions
and Immunity
Guidance and manufacturer’s declaration – electromagnetic immunity
The VPAP III ST-A with QuickNav is intended for use in the electromagnetic environment specified below. The customer or the
user of the VPAP III ST-A with QcuikNav should assure that it is used in such an environment.
Immunity test
IEC60601-1-2
test level
Compliance level Electromagnetic environment –guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete or ceramic tile. If floors
are covered with synthetic material, the relative humidity
should be at least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV for input/
output lines
±2 kV
Not Applicable
Mains power quality should be that of a typical commercial
or hospital environment.
Surge
IEC 61000-4-5
±1 kV differential
mode
±2 kV common
mode
±1 kV differential
mode
±2 kV common
mode
Mains power quality should be that of a typical commercial
or hospital environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines.
IEC 61000-4-11
<5% Ut
(>95% dip in 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
< 12 V
(>95% dip in 240V)
for 0.5 cycle
96 V
(60% dip in 240 V)
for 5 cycles
168 V
(30% dip in 240 V)
for 25 cycles
<12 V
(>95% dip in 240 V)
for 5 sec
Mains power quality should be that of a typical commercial
or hospital environment.
If the user of the VPAP III ST-A with QuickNav requires
continued operation during power mains interruptions, it is
recommended that the VPAP III ST-A with QuickNav be
powered from an uninterruptible power source.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m 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 VPAP III ST-A with
QuickNav, including cables, than the recommended
separation distance calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80
MHz
3 Vrms d = 1.17 √P
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to 2.5
GHz
10 V/m 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 metres (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:
NOTE 1: Ut is the AC mains voltage prior to application of the test level.
NOTE 2: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 3: 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 VPAP III ST-A with QuickNav is used exceeds the applicable RF compliance level above, the VPAP III ST-A with
QuickNav should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the VPAP III ST-A with QuickNav.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.