Topcon TRC-50DX, Инструкция по эксплуатации

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74
REFERENCE MATERIAL
Guidance and manufacturer's declaration - electromagnetic immunity
The TRC-50DX is intended for use in the electromagnetic environment specified below.
The customer or the user of the TRC-50DX should assure that it is used in such an environ-
ment.
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, con-
crete 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 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 TRC-50DX requires con-
tinued operation during power
mains interruptions, it is recom-
mended that the TRC-50DX 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 char-
acteristic of a typical location in
a typical commercial or hospital
environment.
NOTE U
t
is the a.c. mains voltage prior to application of the test level.