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15.EMC Information
Guidance and manufacturer´s declaration – electromagnetic emission
The Model LRK-7000 is intended for use in the electromagnetic environment specified below. The
customer or the user of the Model LRK-7000 should assure that it is used in such an environment.
Emissions test
Compliance
Electromagnetic environment – guidance
RF emissions
CISPR 11
Group 1
The Model LRK-7000 uses RF energy only for its internal
function. Therefore, its RF emissions are very low and
are not likely to cause any interference in nearby electronic
equipment.
RF emissions
CISPR 11
Class A
The Model LRK-7000 is suitable for use in all establishments
other than domestic and those directly connected to the
public low-voltage power supply network that supplies
buildings used for domestic purposes.
Harmonic emissions
IEC 61000-3-2
N/A
Voltage fluctuations
flicker emissions IEC
61000-3-3
N/A
Guidance and manufacturer´s declaration – electromagnetic immunity
The Model LRK-7000 is intended for use in the electromagnetic environment specified below. The
customer or the user of the Model LRK-7000 should assure that it is used in such an environmen t.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment
guidance
Electrostatic
discharge
(ESD)
IEC 61000-4-2
± 8 kV contact
± 8 kV contact
Floors should be wood, concrete
or ceramic tile. If floors are
covered with synthetic material,
the relative humidity should be
at least 30 %.
±2 kV, ±4 kV, ±8 kV, ±15
kV
air
±2 kV, ±4 kV, ±8 kV, ±15
kV air
Electrostatic
transient/burst
IEC 61000-4-4
± 2 kV for power supply
lines
100 kHz repetition
frequency
± 1 kV for input/output
lines
± 2 kV for power supply
lines 100 kHz repetition
frequency
Mains power quality should be
that of a typical commercial or
hospital environment.
Summary of Contents for LRK-7000
Page 1: ...LRK 7000 Autorefractor Keratometer Operation Manual LRK 7000 ...
Page 20: ...20 5 Name and function of each part 5 1 Key part 1 6 4 5 7 3 2 Front part ...
Page 36: ...36 Too far Location and Focus are correct ...
Page 45: ...45 Example of a printed page ...