GYS Gysmi 250 A TRI, Manual

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Recommended combinations / Electrode grinding
Current (A) Ø Electrode (mm)
= Ø wire (filler metal)
Ø Nozzle (mm) Flow rate (Argon L/mn)
0,5-5 10-130 1,6 9,8 6-7
4-7 130-190 2,4 11 7-8
To optimize the working, you have to use an electrode grinded as below :
d
l
THERMAL PROTECTION & DUTY CYCLE
•
Thermal protection: thermal protection indicator turns on and the cooling time is about 2 to 5 min according to
external temperature.
•
Leave the machine connected to the supply after welding in order to let it cool down
•
The welding unit describes an output characteristic of "constant current" type. The duty cycles following the norm
EN60974-1 (at 40°C on a 10mn cycle) are indicated in the table here below :
250 A TRI
X% @ I max X% @ I max
15% 250A 16% 250A
60% 120A 60% 130A
100% 95A 100% 110A
Note : the overheating tests have been made at room temperature and the duty cycles at 40°C have been
determined by simulation.
MAINTENANCE
•
Refer all servicing to qualified personnel.
•
Disconnect the generator and wait until the ventilator stopped before working on the unit. Inside the device,
voltages and current are dangerous.
•
Two or three times a year, remove the steel cover and blow off the dust with compressed air. Let check the
electrical connections (with an insulated tool) and the insulations by qualified personnel.
•
Regularly control the state of the cord. If this supply cable is damaged, it must be replaced by the
manufacturer, its after sales service or a similarly qualified technician to avoid any danger.
ADVICE
•
Respect welding polarities and currents indicated on the electrode packaging
•
Remove the electrode from the electrode holder when you do not use it.
•
Leave the inlets free to allow in/out air circulation.
SECURITY
The arc welding can be dangerous and leads serious injury, may fatal. Protect yourself and protect the
others. Respect the following warnings:
Arc rays
Protect yourself thanks to a welding helmet in compliance with EN175 equiped with filters in
compliance with EN 169 or EN 379. Inform and protect by the same means any people in the
welding environment.
Rain, steam,
humidity
The working environment must be clean (degree of pollution ≤ 3) and protected against
rain. Put the appliance on an even place and at least at one meter from the parts to be
L = 3 x d for a low current
L = d for a strong current
L