Information on EMC
12
12-1.
Guidance and Manufacturer's Declaration – Electromagnetic Immunity
The CTC-7 is intended for use in the electromagnetic environment specified below.
The customer or the user of the CTC-7- should assure that it is used in such an environment.
Immunity Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic environment-guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
(150 kHz to 80
MHz)
3 V/m
(80 MHz to 2.5
GHz)
3 Vrms
3 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the CTC-7,
including cables, than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2,50GHz
Where is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and is the recommended separation
distance in meters (m).
Field strengths fixed RD transmitter, as determined
by an electromagnetic site surveya, should be less
than the compliance level in each frequency range
b
.
Interference may occur in the vicinity of equipment
marked with the following symbol:
Electrostatic
Discharge(ESD)
IEC 61000-4-2
± 8 kV (contact)
± 2 kV, ± 4 kV, ±
8 kV, ± 15 kV (air)
± 8 kV (contact)
± 2 kV, ± 4 kV, ± 8
kV, ± 15 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, 100
kHz repetition
frequency
± 2 kV, 100
kHz repetition
frequency
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
IEC 61000-4-5
± 0.5 kV, ± 1 kV
differential mode
± 0.5 kV, ± 1 kV,
± 2 kV
Common mode
± 0.5 kV, ± 1 kV
differential mode
± 0.5 kV, ± 1 kV, ±
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 0.5cycle
N/A
Mains power quality should be that of a typical
commercial or hospital environment. If the user of the
CTC-7 requires continued operation during power
Mains interruptions, it is recommended that the CTC-
7 be powered from an uninterruptible power supply
or a battery.
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 seconds
d = [1.2]
d = [1.2]
d = [2.3]
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