Essilor AKR 550 User Manual

Guidance and manufacturer's declaration – electromagnetic immunity
AKR550 Image Intensifier is intended for use in the electromagnetic environment specified below.
The customer or the user of AKR550 Image Intensifier should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level
Electromagnetic environment –
guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
6 kV contact
8 kV air
6 kV contact
8 kV air
Floors 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
IEC 61000-4-4
2 kV for power
supply lines
1 kV for input/output
lines
2 kV for power
supply lines
1 kV for
input/output lines
Mains power quality should be that
of a typical commercial or hospital
environment.
Surge
IEC 61000-4-5
1 kV differential
mode
2 kV common mode
1 kV differential
mode
2 kV common mode
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 IEC 61000-4-11
<5 % U
T
(>95 % dip in U
T
) for 0.5
cycle
40 % U
T
(60 % dip in U
T
) for 5
cycles
70 % U
T
(30 % dip in U
T
) for 25
cycles
<5 % U
T
(>95 % dip in U
T
) for 5 s
<5 % U
T
(>95 % dip in U
T
) for
0.5 cycle
40 % U
T
(60 % dip in U
T
) for 5
cycles
70 % U
T
(30 % dip in U
T
) for 25
cycles
<5 % U
T
(>95 % dip in U
T
) for 5
s
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of AKR550
image intensifier requires continued
operation during power mains
interruptions, it is recommended
that AKR550 image intensifier be
powered from an uninterruptible
power supply or a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m
If image distortion occurs, it may be
necessary to position AKR550
further from sources of power
frequency magnetic fields or to
install magnetic shielding. The
power frequency magnetic field
should be measured in the intended
installation location to assure that it
is sufficiently low.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.
AKR550 - Auto Kerato Refractometer > V8 - 12-2017
12
USER MANUAL> II. SAFETY CONSIDERATION

Essilor AKR 550 Specifications

General

Brand	Essilor
Model	AKR 550
Category	Medical Equipment
Language	English