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AD-4401A Page
4
1. SAFETY PRECAUTIONS
For safe and correct usage, read the following precautions carefully before using the indicator.
Precautions for designing
WARNING
●
Provide an external safety circuit to the indicator so that the safety of the whole system can be
secured even if errors occur in the external power supply or in the indicator.
Precautions for installation
WARNING
●
Do not use the indicator in the following environments:
- where the temperature and the humidity exceed the specifications
- where corrosive gases or flammable gases exist
- where the indicator gets wet with oil, chemicals or water
Please note that securing the indicator to the control panel will provide the indicator outside of the
control panel with IP65 protection.
●
When installing or removing the indicator, be sure to turn off all used external power supplies
beforehand.
Precautions for wiring
WARNING
●
When wiring the indicator, be sure to turn off all used external power supplies beforehand.
●
When wiring is complete, be sure to attach the terminal block cover provided with the indicator.
●
Be sure to earth ground the indicator.
CAUTION
●
Do not clamp control wires or communication cables with power lines or place them close to power
lines.
●
Place the load cell cable sufficiently away from high frequency circuits such as high voltage power
lines and inverter load circuits.