5
2. Before operating the unit
Installing procedures and preparation before operation
Warning
1. Be sure to connect the earth wire.
・
Be sure to connect the earth wire (green wire of the power cord) to the earth wire or to
the earth terminal.
・
Never connect the earth wire to the gas pipe or water pipe, in order to prevent fire.
・
The earth wire must never be used for grounding of the telephone line and lightning
arrestor. This is to prevent fire and electric shock.
・
Never use the branch socket outlet because it causes hazardous heat generation.
Used of ground socket outlet recommended
When using a diode socket outlet
When there is no ground terminal.
●
In this case, class D grounding work is
necessary and please consult your dealer or
our customer service center.
Ground adaptor
●
Insert the ground adaptor into a power plug
confirming the polarity of the outlet. Connect
the grounding wire (green) of the ground
adaptor to the ground terminal on the power
supply equipment
。
2. Carefully select an installation site.
Take special care not to install the
unit at a place described below:
・
Uneven surfaces or dirty surfaces
・
Where flammable gas or corrosive
gas exists
・
Where the ambient temperature is
5
℃
or less
・
Where the ambient temperature is
35
℃
or more
・
Where temperature changes
severely
・
Where dusty and humidity is high
・
Where subject to direct sunlight
・
Where vibration is severe
・
Where unstable power supply
・
Where uneven floor
(
within
reference
±
3 degree
)
・
Where raw water pressure is high
・
Where with raw water pressure is
low
・
Outdoors
・
At a place lower than the suction
port of the constant temperature
and humidity chamber
・
On a device or a laboratory table
(with locked adjusters, etc.)
It is recommended to secure the space of the range wider than the one shown above around
the product.
Toward front
by 30cm or more
10cm or more
3-pole power plug with an
earth terminal
Earth wire
3-pole power plug with an
earth terminal
w
G
W
Earth pole
10cm or more
10cm or more