NB-205(Ver. 2020) 4/13
When you see smoke comes out from the product or smell something is burning or see
any other strange symptoms, you have to pull out the power cord and stop using it.
(It can cause an electric shock and a fire.)
1. 3 Precaution for ground connection
Please ground before use the product, if you don't ground, you can get an electrocution
when malfunction or an electric leakage occurs.
At the place where you can't ground,
* Please buy the equipment to prevent any electrical leakage.
* An electric shock, an electric leakage and a fire can be occurred without an electric
leakage breaker.
Do not ground to these places; Gas Pipe, water pipe, pipe, lighting rod, telephone
wire etc.
* Wrong ground connection can cause electrical leakage which eventually results
in fire.
If you don't have the outlet for AC 220V, then bury it under the ground after connecting
the ground line to copper plate.
* No ground connection can bring an electrocution, an electric leakage and a Fire.
1. 4 Precaution for use
You must not disassemble, fix and remodel the product by yourself.
(You can damage the product throughout a fire and malfunction or get a property loss as
well as experimental loss.)
Do not use the product for different purpose.
(It can cause malfunction or poor function. Consequently, you will get a wrong result.)
Do not use an inflammable spray near the product.
(The switch and other electric connection parts can cause a fire.)
When you use inflammable substances such as benzene, thinner, alcohol and LP gas,
please be careful. (It can cause a fire and an explosion.)
To prevent water and experiment material from going into the control panel during the
experiment, make sure to clean the control panel with a dry cloth.
(It can cause an electric leakage and a fire.)
