Welch Allyn 4200B Directions For Use Manual page 56

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The 420 Series Spot Vital Signs is intended for use in the electromagnetic environment specified below. The customer or user of the 420 Series
Spot Vital Signs should assure that it is used in such an environment.
Immunity Test IEC 60601
Test Level
Electrostatic discharge ± 6 kV contact
(ESD)
± 8 kV air
IEC 61000-4-2
Electrical fast transient/ ±2 kV for power supply
burst lines
IEC 61000-4-4 ±1 kV for input/output
lines
Surge ±1 kV differential mode
IEC 61000-4-5 ±2 kV common mode
Voltage dips, short >95% dip in 0.5 cycle
interruptions, and
voltage variations on 60% dip in 5 cycles
power supply input
lines. 30% dip for 25 cycles
IEC 61000-4-11 >95% dip in 5 seconds
Power frequency 3 A/m
(50/60Hz)
magnetic field
IEC 61000-4-8
Electromagnetic Immunity
Compliance Level Electromagnetic Environment - Guidance
± 6 kV contact Floors should be wood, concrete, or ceramic tile. If floors are
covered with synthetic material, the relative humidity should
± 8 kV air be at least 30%.
±2 kV for power supply Mains power quality should be that of a typical commercial or
lines hospital environment.
±1 kV for input/output
lines
±1 kV differential mode Mains power quality should be that of a typical commercial or
hospital environment.
±2 kV common mode
>95% dip in 0.5 cycle Mains power quality should be that of a typical commercial or
hospital environment. If the user of the 420 Series Spot Vital
60% dip in 5 cycles Signs requires continued operation during power mains
interruptions, it is recommended that the 420 Series Spot Vital
30% dip for 25 cycles Signs be powered from an uninterruptible power supply or
battery.
>95% dip in 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 Spot Vital Signs