Topcon TRC-NW8F - Page 83

81
SPECIFICATIONS & PERFORMANCE
Guidance and manufacturer's declaration - electromagnetic immunity
The TRC-NW8F/TRC-NW8F plus is intended for use in the electromagnetic environment speci-
fied below.
The customer or the user of the TRC-NW8F/TRC-NW8F plus 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 humid-
ity 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 envi-
ronment.
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 envi-
ronment.
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 envi-
ronment. If the user or the TRC-
NW8F/TRC-NW8F plus requires
continued operation during power
mains interruptions, it is recom-
mended that the TRC-NW8F/TRC-
NW8F plus be powered from an
uninterruptible power supply or bat-
tery.
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 commer-
cial or hospital environment.
NOTE U
t
is the a.c. mains voltage prior to application of the test level.