Advantech EKI-7428G Series, User Manual

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S
WITCH
I
NSTALLATION
9
2.1. Warnings
Warning: Before working on equipment that is connected to power lines, remove any jewelry
(including rings, necklaces, and watches). Metal objects can heat up when connected to
power and ground, which can cause serious burns or weld the metal object to the terminals.
Exposure to chemicals can degrade the sealing properties of materials used in the
sealed relay device.
It is not recommended to work on the system or connect or disconnect cables dur-
ing periods of lightning activity.
Before performing any of the following procedures, disconnect the power source
from the DC circuit.
Read the installation instructions before connecting the system to its power source.
This unit is intended for installation in restricted access areas. A restricted access
area is defined as an area that can be accessed only through the use of a special
tool, lock and key, or other means of security.
The device must be grounded. Never defeat the ground conductor or operate the
equipment in the absence of a suitably installed ground conductor.
This unit may have more than one power supply connection. All connections must
be removed to de-energize the unit.
The installation, replacement, or service of the device must be Only be performed
by trained and qualified personnel.
Ultimate disposal of this product should be handled according to local and national
regulations
To prevent the system from overheating, do not operate it in an area that exceeds
the maximum recommended ambient temperature of: 70°C (158°F).