biodex rtm 600 Operation Manual page 32

CONTENTS
Continued from previous page
Immunity test Iec 60601-1-2
test level
Voltage dips, short < 5% UT (> 95% of dip
interruptions and in UT for 1/2 cycle)
voltage variations 40% UT (60% of dip
on power supply in UT) for 5 cycle
input lines 70% UT (30% of dip
IEC 61000-4-11 in UT) for 25 cycle
< 5% UT (> 95% of dip
in UT) for 5 sec
Power frequency 3 A/m
(50/60 Hz) magnetic
field
IEC 61000-4-8
Conducted RF 3 Vrms,
IEC 61000-4-6 150 KHz to 80 MHz
Iec 60601-1-2
compliance level
< 5% UT (> 95% of dip
in UT) for 1/2 cycle
40% UT (60% of dip
in UT) for 5 cycle
70% UT (30% of dip
in UT) for 25 cycle
< 5% UT (> 95% of dip
in UT) for 5 sec
3 A/m
3 Vrms,
150KHz to 80 MHz
— 10-3 — ELECTROMAGNETIC COMPATIBILITY
electromagnetic
environment – guidance
Mains power quality should
be that of a typical commercial
or hospital environment.
If a better mains power
quality is required, it is
recommended that the Gait
Trainer III Treadmill is
powered from an uninter-
ruptible power supply
If image distortion occurs,
it may be necessary to
position the Gait Trainer III
Treadmill display further
from sources of power
frequency magnetic fields
or to install magnetic shield-
ing. The power frequency
magnetic field should be
measured in the intened
installation location to assure
that it is sufficiently low
Portable and mobile RF
communications equipment
should be used no closer to
any part of the Gait Trainer III
Treadmill, including cables,
than the recommended sep-
aration distance calculated from
the equation applicable to the
frequency of the transmitter.
Recommended separation
distance:
d = 1.2√ P 150 KHz to 80 MHz
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 watt (W)
according to the transmitter
manufacturer, and is the
recommended separtion
distance in meters (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.
b
Interference may occur in the
vicinity of equip-
ment marked with
the following
symbol: