84
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
This device is intended for use in the electromagnetic environment specified below. The customer or the
user of the devices should assure that the device is used in such an environment.
Immunity test
IEC60601
Test level
Compliance level
Electromagnetic environment -
guidance
Electrostatic
discharge
（
ESD
）
GB/T 17626.2
（
IEC61000-4-2
）
±6kV Contact
±8kV Air
±6kV Contact
±8kV Air
Floor 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/burst
GB/T 17626.4
（
IEC61000-4-4
）
±2kV for power
supply lines
±1kV for input/
output lines
±2kV for power
supply lines
±1kV for input/
output lines
Mains power quality should be
that of a typical commercial or
hospital environment.
Surge
GB/T 17626.5
（
IEC61000-4-5
）
±1kV line to line
±2kV line to earth
±1kV line to line
±2kV lien to earth
±1kV line to line
±2kV line to earth
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
GB/T 17626.11
（
IEC61000-4-11
）
<5% Ut (>95% dip
in Ut) for 0.5 cycle
40% Ut (60% dip in
Ut) for 5 cycles
70% Ut (30% dip in
Ut) for 25 cycles
<5% Ut (>95% dip
in Ut) for 5 sec
<5% Ut (>95% dip
in Ut) for 0.5 cycle
40% Ut (60% dip in
Ut) for 5 cycles
70% Ut (30% dip in
Ut) for 25 cycles
<5% Ut (>95% dip
in Ut) for 5 sec
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the device requires continued
operation during power mains
interruptions, it is recommended
that the device be powered from
an uninterruptible power source.
Power frequency
magnetic field
（
50/60Hz
）
GB/T 17626.8
（
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.
Note: Ut is the AC mains voltage prior to application of the test level.
Содержание YPA-2100
Страница 1: ...YPA 2100 DIGITAL REFRACTOR User Manual Version 1 0 Date 20180521...
Страница 5: ...13 Electrical Schematic Diagram 82 14 Electromagnetic Compatibility 83...
Страница 24: ...19 Press to enlarge PD press to reduce PD 3 Press to exit PD input interface...
Страница 31: ...26 key...
Страница 42: ...37 4 Click key shift to 0 5XC 5 Click the key again shift to automatic mode Slit Prism...
Страница 55: ...50 34 Press to finish the test...
Страница 72: ...67 3 Program 1 A B C D are recommended vision test steps users can also add or delete as needed...
Страница 74: ...69 Add Key Click it to add one step automatically 4 Click key to enter program customizing interface...
Страница 78: ...73 3 Click key to popup input box...
Страница 79: ...74 4 Use CCQ 800 lensmeter to test lens data and convey the date to YPA 2100 5 Click key 6 Choose No00001...
Страница 80: ...75 7 Click key to complete data import...