Techsis SE-4048, Руководство пользователя

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SE-4048
Tel
:021-22371482 ,
Fax
:021-66402031
Www.techs.is , Sales@techs.is
Page
11
elevation
Products with this mark are only suitable for safe use in areas below 2000m above sea level.
dustproof
Dust falling on the surface of the switch can cause electrostatic adsorption and poor contact of the
metal contacts. Although the device itself has made certain measures in anti-static, when the static
electricity exceeds a certain intensity, it will still cause fatal damage to the electronic components on
the internal circuit board. To avoid the static electricity affecting the normal operation of the device,
please pay attention to the following:
1. Regular dust removal to keep indoor air clean;
2. Make sure that the equipment is well grounded to ensure the smooth transfer of static
electricity.
interference
Electromagnetic interference will affect the electronic components such as capacitors and inductors
inside the device by means of capacitive coupling, inductive coupling, impedance coupling, etc. To
reduce the adverse effects caused by electromagnetic interference, please pay attention to the
following:
1. The power supply system takes necessary measures against grid interference;
2. The switch should be away from high-frequency, high-power, high-current equipment, such
as wireless transmitters;
3. Take electromagnetic shielding measures when necessary.
lightning protection needs
When a lightning strike occurs, a strong current is generated in an instant, and the air in the discharge
path is instantaneously heated to 20,000 degrees Celsius, and an instantaneous large current is
enough to cause fatal damage to the electronic device. For better lightning protection, please note the
following:
1. Confirm that the rack is in good contact with the ground;
2. Make sure the power outlet is in good contact with the ground;
3. Reasonable wiring to avoid internal induction lightning;
4. When using outdoor wiring, it is recommended to use a signal lightning arrester.