Schulte Elektronik U-3003-E, Инструкция пользователя

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Guidelines for the avoidance, detection and rectification of
electromagnetic interference with other equipment
Other electrical / electronic equipment should not be operated in the immediate vicinity of the U-3003 or be
included in an equipment stack with the latter. If such an arrangement is unavoidable, this equipment should be
monitored for correct function. Because of the variety of equipment functions, the effects can vary considerably
and can be difficult to detect. Examples:
Equipment Malfunction Remedy
Radio and TV equipment - Noise / crackling in the audio
- Horizontal lines in the picture
- Increase distance
- Change arrangement
- Change alignment
- Change reception channel
Monitoring systems e.g.
b aby monitors
Cordless telephones
- Noise / crackling in the audio
Radio thermometer
Radio weather stations - Interference with data
transmission, missing or erroneous
display
General electronic equipment - Malfunction e.g. stop or change
from the intended mode
Guidelines and manufacturer’s explanations - electromagnetic interference immunity
The U-3003 is intended for operation in the electromagnetic environment described below. The customer or user
of the U-3003 should ensure that it is used in this type of environment.
Interference
immunity IEC 60601
Test level Conformity level Electromagnetic
environment --
Electrostatic
discharge (ESD)
according to
IEC 61000-4-2 ±8 kV contact
discharge
±15 kV
air
discharge
±8 kV contact
discharge
±15 kV
air
discharge
The floor should be wood or
concrete or provided with ceramic
tiles. If the floor is
provided with synthetic material,
the relative air humidity must be
at least 30%.
Rapid transient
electrical
disturbance / bursts
according to
IEC 61000-4-4 ±2kV
for power cords ±2kV
for power cords The quality of the supply voltage
should correspond to a typical
business or hospital environment.
Impulse voltage
(Surges acc. to
IEC 61000-4-5 ±1kV
Normal modes
voltages
±2kV
in-phase voltages
±1kV
Normal modes
voltages
±2kV
in-phase voltages
The quality of the supply voltage
should correspond to a typical
business or hospital environment.
Voltage drops, short
power outages and
fluctuations of the
supply voltage
according to
IEC 61000-4-11
70% UT for 10 ms
40% UT for 100ms
0% UT for 100ms
0% UT for 5s
70% UT for 10 ms
40% UT for 100ms
0% UT for 100ms
0% UT for 5s
The quality of the supply voltage
should correspond to a typical
business or hospital environment.
If the user of the U-3003-E / S
requires it to continue in operation
also during interruptions to the
power supply, it is recommended
that the U-3003-E / S be supplied
from an uninterruptible power
supply or a battery.
Magnetic fields with the
supply frequency
(50/60 Hz) according
to IEC 61000-4-8 30 A/m 30 A/m Magnetic fields with the supply
frequency should correspond to,
typical values, as can be found in
a business or hospital environment.
Note: UT is the a.c. supply voltage before application of the test level