Welch Allyn KleenSpec 790 Series Cordless Illumination System - User Manual - Manual (Page 20)

18 Directions for use Welch Allyn
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 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 (EFT)/
burst
IEC 61000-4-4 ±2 kV mains
±1 kV I/O ±2 kV mains
Not applicable Mains power quality should be that of
a typical commercial or hospital
environment.
Surge
IEC 61000-4-5 ±1 kV differential
±2 kV common ±1 kV differential
±2 kV common 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 >95% dip in
0.5 cycle
60% dip in
5 cycles
30% dip for
25 cycles
>95% dip in
5 seconds
>95% dip in
0.5 cycle
60% dip in
5 cycles
30% dip for
25 cycles
>95% dip in
5 seconds
Mains power quality should be that of
a typical commercial or hospital
environment. If the user of the 790
series cordless illumination system
requires continued operation during
power mains interruptions, it is
recommended that the 790 series
cordless illumination system be
powered from an uninterruptible
power supply or battery.
Power frequency
(50/60Hz)
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.