User's Manual

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11 Electromagnetic compatibility information
Guidelines and manufacturer's statements - Electromagnetic emissions
The Wearable Motion and Gait Quantification Assessment System is intended for use in the following specified electromagnetic environments and
the purchaser or user of the Freeze Gait Assist System should ensure that it is used in such environments:
Launch test
Conformity
Electromagnetic Environment - Guide
Radio Frequency Emission GB 4824
1 group
The Freeze Gait Assist uses RF energy only for its internal functions. It therefore has
very low RF emissions and the potential for interference with nearby electronic
equipment is minimal.
Radio Frequency Emission GB 4824
Category B
The Freeze Gait Assist system is suitable for use in all facilities, including domestic and
residential public low-voltage supply networks connected directly to the home.
Harmonic emission GB 17625.1
Not
applicable
Voltage fluctuations/flicker emission
GB17625.2
Not
applicable
Table 11 Declaration of conformity for electromagnetic emissions
Guidelines and manufacturer's statements - Electromagnetic Immunity
The Wearable Motion and Gait Quantification Assessment System is intended for use in the following specified electromagnetic environments and
the purchaser or user of the Freeze Gait Assist System should ensure that it is used in such environments:
Immunity tests
IEC 60601 Test levels
Conformity level
Electromagnetic Environment - Guide
Electrostatic discharge
GB/T 17626.2
±6 kV contact discharge
±8 kV air discharge
±6 kV contact discharge
±8 kV air discharge
The floor should be wood, concrete or tile,
or at least 30% relative humidity if the floor
is covered with a synthetic material
Electric fast transient pulse
train
GB/T 17626.4
±2kV to charging line
Not applicable
The network power supply should be of a
quality typical of use in a commercial or
hospital environment
Surge
GB/T 17626.5
±1 kV wire-to-wire
±2 kV line to ground
Not applicable
Net power should be of a quality typical of
use in a commercial or hospital environment
Voltage transients on the power
input line, short
Time interruptions and voltage
variations
GB/T 17626.11
<5 % UT for 0.5 cycles
(on UT, >95% temporary
drop)
40% UT, duration 5 cycles
(onUT, 60% temporary drop)
70% UT, duration 25 cycles
(on UT, 30% temporary
reduction)
<5 % UT for 5s
(on UT, >95% temporary
drop)
Not applicable
The network power supply should be of a
quality typical of that used in a commercial
or hospital environment. If the user of a
freeze gait assist system requires continuous
operation during a power interruption, it is
recommended that the freeze gait assist
system be powered by an uninterruptible
power supply or battery
Industrial frequency magnetic
field (50/60Hz )
3A/m
3A/m
The FT magnetic field should have the
characteristics of the FT magnetic field levels