
6. Function description
Function description of the front/rear panel of the arc-welding rectifier
No.
Name
Description
1
Amperemeter
Preset and display the output current of the
welder
2
Voltmeter
Preset and display the output voltage of the
welder
3
Power indicator light
Indicate if the power supply of the welder is
turned on/off.
4
Abnormality indicator light
The abnormality indicator light is on when
an abnormality occurs
5
Adjustment knob of
arc-receiving current
Set the arc-receiving/manual welding current
6
Adjustment knob of arc-receiving
voltage
Set the arc-receiving voltage for welding
7
Arc-receiving On/Off switch
Make sure if the arc-receiving specification is
required
8
Gas check switch
Check gas flow and pre-adjust gas flow rate
9
Wire-selection switch
Select the welding-wire diameter
10
Function switch
Select manual/gas-shielded welding
11
Plug of the control cable
Connected to the control cable of the wire
feeder
12
Output anode
Connected to the welding power cable of the
wire feeder
13
Output cathode
Connected to the workpiece
14
Input terminal box
Connected to the input power cable of three-
phase, 415V/AC, and 50Hz
15
Plug of the heater
Connected to the heater of the CO2 adjuster
16
Control power fuse
Protect the control circuit
17
Air switch
When the welder functions improperly, or is
overloaded for a long time, protection
function of the air switch is activated.
18
Nameplate
Indicate the related technical parameters and
information of the welder
19
Grounding terminal
Be sure to connect it to the welding ground
when use the welder to ensure safe use of
electricity.
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