Essilor Instruments Vision-R 800, User Manual

Page: 83 / 91

Manufacturer guidelines and declaration - Electromagnetic immunity
Vision-R
TM
800 is intended to be used in the electromagnetic environment specified below.
It is up to the customer or the user to verify that the instrument is used in this environment.
Immunity test IEC 60601 test level Compliance level
Electromagnetic environment –
Guidelines
Electrostatic discharge
(ESD)
IEC 61000-4-2
± 8 kV contact
± 15 kV air
± 8 kV contact
± 15 kV air
The floor must be out of wood,
concrete or ceramic tiling. If the floor
is covered with a synthetic material,
the relative humidity must be at least
30%.
Fast transients/Electric
bursts
IEC 61000-4-4
± 2 KV (repetition
frequency 100 KHz)
± 2 KV (repetition
frequency 100 KHz)
The quality of the power supply must
be that of a typical hospital or
commercial environment.
Surge
IEC 61000-4-5
± 1 KV in differential
mode
± 2 KV in current
mode
± 1 KV in differential
mode
± 2 KV in current
mode
Immunity to the
magnetic field at
frequency (50/60 Hz)
IEC 61000-4-8
30 A/m
Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical
commercial or hospital environment
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines IEC 61000-4-11
0% U
T
(0°, 45°, 90°, 135°,
180°, 225°, 270° and
315° for 0.5 cycle)
0% U
T
for 1 cycle
70% U
T
phase with 0° for
25/30 cycles
0% U
T
for 250/300
cycles
0% U
T
(0°, 45°, 90°, 135°,
180°, 225°, 270° and
315° for 0.5 cycle)
0% U
T
for 1 cycle
70% U
T
phase with 0° for
25/30 cycles
0% U
T
for 250/300
cycles
The quality of the power supply must
be that of a typical hospital or
commercial environment. If the user
of the instrument needs
uninterrupted use in the event of a
power failure, it is recommended to
power the instrument using an
uninterruptible power supply or
battery.
NOTE: U
T
is the AC mains voltage before applying the test level.
Vision-R 800 - Essilor automatic phoropter > V1 - 12-2018
88
U
SER MANUAL
> VIII. G
ENERAL WARNINGS