6
3. COMPONENTS AND FUNCTIONS
Back of the Main Unit
Back of the main unit
⑦
Earth leakage breaker
:
When this breaker is turned on, electricity is applied to the ma-
chine. If leakage exceeding 30 mA or overcurrent exceeding 16
A flows, it cuts off the current to protect the machine.
⑧
Circuit protector
:
If overcurrent exceeding 5 A flows in the 100 V line, this protector
cuts off the current to protect the machine.
⑨
Connector for power cord
:
Connect this to the distribution panel on the building side. (A 3-m
cord is attached for connection.)
⑩
Connector for vacuum
pump
:
Connect the cable from the vacuum pump.
⑪
Ground terminal
:
Use this to ground the machine by a line other than the attached
power cord or to ground measuring instruments.
⑫
Vacuum nozzle
:
Connect the vacuum pump with the attached flexible tube.
⑬
Nitrogen (N
2
) gas nozzle
:
Connect piping from the N
2
gas cylinder. Adjust the pressure to
the range of 0.2 MPa to 0.3 MPa.
⑭
Argon (Ar) gas nozzle
:
Connect piping from the Ar gas cylinder. Adjust the pressure to
the range of 0.15 MPa to 0.25 MPa.
⑮
Oxygen (O2) gas nozzle
:
Connect piping from the O2 gas cylinder. Adjust the pressure to
the range of 0.15 MPa to 0.25 MPa.
⑯
Cooling fan
:
Cools the inside of the enclosure. Provide a space of more than
10 cm around the enclosure so that the airflow will not be dis-
turbed.
⑦
-1
Test
button
:
Use this during peri-
odic inspections to
check if the earth
leakage breaker is
functioning properly.
⑦
-2
Leakage
indicator
:
When leakage occurs,
this button pops out.
⑦
⑦
⑦
⑦-
-
-
-1
1
1
1
⑦
⑦
⑦
⑦-
-
-
-2
2
2
2
⑦
⑦
⑦
⑦
⑧
⑧
⑧
⑧
⑨
⑨
⑨
⑨
⑩
⑩
⑩
⑩
⑪
⑪
⑪
⑪
⑫
⑫
⑫
⑫
⑬
⑬
⑬
⑬
⑭
⑭
⑭
⑭
⑮
⑮
⑮
⑮
⑯
⑯
⑯
⑯
Summary of Contents for PDC510
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