Emc Table - Welch Allyn Spot VS100 Directions For Use Manual

36 Specifications

EMC Table

Table 1. Emission Guidance
The Welch Allyn vision screener is intended for use in the electromagnetic environment specified below. The operator or the user of the device should
assure that it is used in such an environment.
Emission Test
RF EmissionCispr 11
RF EmissionCispr 11
Harmonic EmissionIEC 61000-3-2
Voltage Fluctuation/flicker Emission IEC 61000-3-
3
Table 2. Immunity Guidance
The vision screener is manufactured to work in the electromagnetic environment specified below. The operator or user should make sure it is used within
those environmental conditions.
Immunity Test Test level EN 60601-1-2
Electrostatic Discharge ± 8kV air
(ESD) EN 61000-4-2 ± 6kV contact
Electrical Fast ±2 kV high voltage
Transient/Burst EN power line
601000-4-4
Surge EN 61000-4-5 Differential mode: ±1 kV
Common mode: ±2kV
Voltage dips, short <5% UT (>95% dip of UT) for
interruptions and 0,5 cycle
voltage variations on 40% UT (>60% dip of UT) for 5
power supply input cycle
lines EN 61000-4-11 70% UT (>30% dip of UT) for
25 cycle
<5% UT (>95% dip of UT) for 5
seconds
Magnetic field at power 3 A /m
frequency EN 61000-4-8
Table 3. Immunity Radio Frequency Guidance
The vision screener is manufactured to work in the electromagnetic environment specified below. The operator or user should make sure it is used within
those environmental conditions.
Immunity Test
Group 1
Class B
Class B
Compliant
Compliant
± 8kV air
± 6kV contact
±2 kV high voltage
power line
Differential mode: ±1 kV
Common mode: ±2kV
<5% UT (>95% dip of UT) for 0,5
cycle
40% UT (>60% dip of UT) for 5
cycle
70% UT (>30% dip of UT) for 25
cycle
<5% UT (>95% dip of UT) for 5
seconds
3 A /m
Test level EN 60601-1-2
Compliance
Conformity Level
Conformity Level
Welch Allyn Spot Vision Screener
Electromagnetic environment guide
The vision screener must emit electromagnetic
energy in order to perform its intended function.
Nearby electronic equipment may be affected.
The vision screener is suitable for use in all
establishments other than domestic and those
directly connected to the public low-voltage
power supplies building used for domestic
purposes.
Electromagnetic environment guide
The floor should be in wood, concrete or ceramic tile. If
the floor is covered with synthetic material, relative
humidity should be at least 30%.
The quality of the power supply should be that one of a
typical commercial or clinical environment.
The quality of the power supply should be that one of a
typical commercial or clinical environment.
The quality of the power supply should be that one of a
typical commercial or clinical environment. If the user
requests a continuous functioning during power supply
interruptions, it is recommended a backup power supply
unit (UPS) or battery.
Power frequency magnetic fields should have
characteristic levels of a typical commercial or clinical
environment.
Electromagnetic environment guide