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4
PRECAUTIONS
1
．
Electrical safety
All installation and operation here should conform to your local electrical
safety codes.
The power supply shall conform to the requirement in the SELV (Safety
Extra Low Voltage) and must make sure that the limited power source is
rated 12V DC or 24V AC.
Please note: Do not connect two power supplying sources to the
device at the same time; it may result in device damage!
We assume no liability or responsibility for all the fires or electrical shock
caused by improper handling or installation.
We are not liable for any problems caused by unauthorized modification or
attempted repair.
2
．
Transportation Security
Please ensure that the product does not endure heavy stresses, violent
vibration or contact with water during transportation, storage and
installation.
Please use the original packing material (or the material of the same
quality) if you need to return it to vendor.
3
．
Installation
Do not apply power to the product before completing installation.
Do not put object(s) on the product.
Please install a proper power cut-off device during the installation
connection.
4
．
Qualified engineers needed
All the examination and repair work should be done by the qualified service
engineers. We are not liable for any problems caused by unauthorised
modifications or attempted repair.
