Topcon MC-4S - Page 70

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GENERAL INFORMATION ON USAGE AND MAINTENANCE
Guidance and manufacturer's declaration - electromagnetic immunity
The MC-4S is intended for use in the electromagnetic environment specified below. The customer or
the user of the MC-4S 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
line (s) to line (s)
± 2 kV
line (s) to earth
± 1 kV
line (s) to line (s)
± 2 kV
line (s) 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
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 sec
<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 sec
Mains power quality should be that
of a typical commercial or hospital
environment. If the user or the MC-
4S requires continued operation
during power mains interruptions, it
is recommended that the MC-4S be
powered from an uninterruptible
power supply or battery.
Power frequency
(50/60 Hz)
magnetic field
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 com-
mercial or hospital environment.
NOTE U
t
is the a.c. mains voltage prior to application of the test level.