G4L
User Manual
P a g e
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Copyright©2020 ZKTECO CO., LTD. All rights reserved.
1
Safety Measures
The following precautions are to keep the user’s safety and prevent any damage. Please read
carefully before installation.
1.
Read, follow, and retain instructions
- All safety and operational instructions must be properly
read and followed before bringing the device into service.
2.
Do not ignore warnings
- Adhere to all warnings on the unit and in the operating instructions.
3.
Accessories
- Use only manufacturer-recommended or product-sold accessories. Accessories not
recommended by the manufacturer must not be used.
4.
Precautions for the installation
– Do not place this device on an unstable stand or frame. It may
fall and cause serious injury to persons and damage to the device.
5.
Service
- Do not try to service this unit yourself. Opening or removing covers may expose you to
hazardous voltages or other hazards.
6.
Damage requiring service
- Disconnect the system from the main AC or DC power source and
refer service personnel under the following conditions:
•
When cord or connection control is affected.
•
When the liquid was spilled, or an item dropped into the system.
•
If exposed to water and/or inclement weather (rain, snow, and more).
•
If the system is not operating normally under operating instructions.
Just change controls defined in operating instructions. Improper adjustment of other controls may
result in damage and involve a qualified technician to return the device to normal operation.
7.
Replacement parts
- When replacement parts are needed, service technicians must only use
replacement parts provided by the supplier. Unauthorized substitutes can result in a burn, shock,
or other hazards.
8.
Safety check
- On completion of service or repair work on the unit, ask the service technician to
perform safety checks to ensure proper operation of the unit.
9.
Power sources
- Operate the system only from the label's power source form. If the sort of power
supply to use is unclear, call your dealer.
10.
Lightning
- External lightning conductors can be installed to protect against electrical storms. It
stops power-ups destroying the system.
The devices should be installed in areas with limited access.
