Electromagnetic Emission; Electromagnetic Immunity - Zeiss VISUREF 150 User Manual

Autorefractor/keratometer
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Electromagnetic emission

Emitted interference
Conducted emission
Radiated interference
Harmonic distortion
Voltage fluctuations and flicker

Electromagnetic immunity

Phenomenon
Electrostatic discharge
Radiated RF EM fields
Electrical fast transient/burst
Surge voltage/surges line to line
Surge voltage/surges line to earth
Conducted disturbances induced by RF
fields
Rated power frequency magnetic fields IEC 61000-4-8
Voltage dips
Voltage interruptions
Electromagnetic compatibility
Standard
Compliance
CISPR 11
Group 1
CISPR 11
Class B
IEC 61000-3-2
Class A
IEC 61000-3-3
Complies
Standard
Test level
± 8 kV contact
IEC 61000-4-2
± 2 kV, ± 4 kV, ± 8 kV, ± 15 kV air
(device, connection, (3, 4, 5, Fig. 5), chin rest)
10 V/m
IEC 61000-4-3
80 MHz to 2.7 GHz
80 % AM at 1 kHz
± 2 kV,
100 kHz repetition rate (power cable)
IEC 61000-4-4
± 1 kV,
100 kHz repetition rate (data cable)
± 0.5 kV, ± 1 kV (power cable)
IEC 61000-4-5
± 0.5 kV, ± 1 kV, ± 2 kV (power and data cables)
3 V
0.15 MHz to 80 MHz
IEC 61000-4-6
6 V in ISM frequency bands between 0.15 MHz
and 80 MHz
80 % AM at 1 kHz (power and data cable)
30 A/m
50 Hz or 60 Hz
0% U
at 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°
0 % U
IEC 61000-4-11
70 %
single-phase: at 0°
0 % U
; 0.5 cycle
T
; 1 cycle and
T
; 25 cycles @50 Hz/30 cycles @60 Hz
UT
250 cycles @50 Hz/300 cycles @60 Hz
T;
000000-2227-967-GA-GB-281021
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