Safety Devices - Cebora Plasma prof 55 Betriebsanleitung

G
2.2 DESCRIPTION OF DEVICES ON THE MACHINE
A) Power cord
B) Compressed air fitting (1/4" female gas thread)
C) Mains power switch
E) Pressure regulator knob
F) Pressure gauge
G) Thermostat LED
H) Grounding clamp
I) Water trap
L) Low air pressure LED
M) Mains power led.

2.3 SAFETY DEVICES

This system comes equipped with the following safety
devices:
Overload cutout:
To avoid overloads. It is evidenced by the G led con-
tinuosly on (see fig.2).
Pneumatic:
Located on the torch inlet to prevent low air pres-
sure. The LED L lights when tripped (see fig.2).
Electrical:
Located on the torch body, to prevent hazardous voltages
from occurring on the torch when, swirl ring, electrode or
nozzle holder are replaced;
The machine is also equipped with an error detection
system, summarized in the table in paragraph 6.1.1
• Do not remove or short-circuit the safety devices.
• Use only original spare parts.
• Always replace any damaged parts of the machine
with original materials.
• Do not run the machine without its housings. This
would be dangerous to the operator and anyone else
in the work area, and would prevent the machine from
being cooled properly.
8
H L M C
Fig.2
2.4 EXPLANATION OF TECHNICAL SPECIFICATIONS
IEC 60974.1 The equipment is built according to these
EN 50192 standards.
EN 50199
N°. Serial number. Must be indicated on any
type of request regarding the device.
Downslope.
Suitable for plasma cutting.
Type of torch that may be used with this
TORCH TYPE
machine to form a safe system.
U . Secondary open-circuit voltage.
0
X. Duty cycle percentage.
The duty cycle expresses the percentage of
10 minutes during which the welding
machine may run at a certain current I
and voltage U
I . Cutting current.
2
U Secondary conventional voltage with weld-
2
ing current I
distance between the contact tip and the
workpiece.
If this distance increases, the cutting vol
tage also increases and the duty cycle
X%
U . Rated supply voltage.
1
1~ 50/60Hz 50- or 60-Hz Single-phase power supply.
3~ 50/60Hz 50- or 60-Hz three-phase power supply.
I max Max. absorbed current at the corresponding
1
current I
I eff This is the maximum value of the actual cur-
1
rent absorbed, considering the duty cycle.
This value usually corresponds to the capa-
city of the fuse (delayed type) to be used as
a protection for the equipment.
IP21 C. Protection rating for the housing.
A
I E
without overheating.
2
This voltage depends on the
2
may decrease.
and voltage U .
2 2
B F
2