Welch Allyn KleenSpec 790 Series Directions For Use Manual page 20

18 Directions for use
Table 2. Immunity for all EQUIPMENT and SYSTEMS
The 790 series cordless illumination system is intended for use in the electromagnetic environment
specified below. The customer or user of the 790 series cordless illumination system should assure
that it is used in such an environment.
Immunity test IEC 60601
test level
Electrostatic ± 6 kV contact
discharge (ESD) ± 8 kV air
IEC 61000-4-2
Electrical fast ±2 kV mains
transient (EFT)/ ±1 kV I/O
burst
IEC 61000-4-4
Surge ±1 kV differential
IEC 61000-4-5 ±2 kV common
Voltage dips, short >95% dip in
interruptions, and 0.5 cycle
voltage variations
on power supply 60% dip in
input lines. 5 cycles
IEC 61000-4-11
30% dip for
25 cycles
>95% dip in
5 seconds
Power frequency 3 A/m
(50/60Hz)
magnetic field
IEC 61000-4-8
Compliance Electromagnetic environment -
level guidance
± 6 kV contact Floors should be wood, concrete, or
± 8 kV air ceramic tile. If floors are covered with
synthetic material, the relative
humidity should be at least 30%.
±2 kV mains Mains power quality should be that of
Not applicable a typical commercial or hospital
environment.
±1 kV differential Mains power quality should be that of
±2 kV common a typical commercial or hospital
environment.
>95% dip in Mains power quality should be that of
0.5 cycle a typical commercial or hospital
environment. If the user of the 790
60% dip in series cordless illumination system
5 cycles requires continued operation during
power mains interruptions, it is
30% dip for recommended that the 790 series
25 cycles cordless illumination system be
powered from an uninterruptible
>95% dip in power supply or battery.
5 seconds
3 A/m Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical
commercial or hospital environment.
Welch Allyn