a
The ISM (industrial, scientific and medical) bands between 0,15 MHz and 80 MHz are 6,765 MHz to
6,795 MHz; 13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz to 40,70 MHz.
The amateur radio bands between 0,15 MHz and 80 MHz are 1,8 MHz to 2,0 MHz, 3,5 MHz to 4,0
MHz, 5,3 MHz to 5,4 MHz, 7 MHz to 7,3 MHz, 10,1 MHz to 10,15 MHz, 14 MHz to 14,2 MHz, 18,07
MHz to 18,17 MHz, 21,0 MHz to 21,4 MHz, 24,89 MHz to 24,99 MHz, 28,0 MHz to 29,7 MHz and 50,0
MHz to 54,0 MHz.
b The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the
frequency range 80 MHz to 2,7 GHz are intended to decrease the likelihood that mobile/portable
communications equipment could cause interference if it is inadvertently brought into patient areas.
For this reason, an additional factor of 10/3 has been incorporated into the formulae used in
calculating the recommended separation distance for transmitters in these frequency ranges.
c 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 whichThe model Portable ECG monitor is used exceeds the applicable RF compliance
level above, The model Portable ECG monitor 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 Portable ECG monitor
d Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Shenzhen Viatom Technology Co., Ltd (Hereinafter called Viatom) owns the intellectual property
rights to this Viatom product and this manual. This manual may refer to information protected
by copyrights or patents and does not convey any license under the patent rights of Viatom, nor
the rights of others. Viatom intends to maintain the contents of this manual as confidential
Guidance and manufacturer’s declaration – electromagnetic immunity
The model Portable ECG monitor is intended for use in the electromagnetic environment specified
below. The customer or the user of The model Portable ECG monitor should assure that it is used
in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment –
guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 8 kV contact
± 2 kV
，
± 4 kV
，
± 8
kV
，
± 15kV air
± 8 kV contact
±
2 kV
，
± 4 kV
，
± 8
kV
，
± 15kV 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
n.a.
n.a.
Surge
IEC61000-4-5
± 1 kV line to line
±2 kV line to earth
n.a.
n.a.
Voltage dips,
short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
0% U
T
0,5cycle
At
0°,45°,90°,135°,180°,
225°,270°and 315°,
0% U
T
1cycle
and 70% U
T
25/30
cycles
Single phase:at 0°
n.a.
n.a.
Power frequency
(50/60 Hz)
magnetic field IEC
61000-4-8
30A/m, 50/60Hz
30A/m,50/60Hz
Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical commercial
or hospital environment.
NOTE : U
T
is the AC mains voltage prior to application of the test level.
