ims PRO 173E Mode D'emploi page 17

Recommended combinations / electrode grinding
0,5-5
4-6
To optimise the welding process, it is recommended to grind the electrode prior to the welding, as described below:
L = 3 x d.
TROUBLESHOOTING
Troubleshooting
The machine does not deliver any
current and the yellow thermal
protection indicator is switched on
(6).
MMA-TIG
The product is connected to the
mains, you are feeling tingling
when touching the case.
The machine welds poorly.
When the machine starts, the
display shows
Unstable arc
The tungsten electrode becomes
oxidized and tainted at the end of
the welding
The electrode melts
IMS 173E
Ø Electrode (mm)
Current (A)
(filler metal)
10-130
130-160
d
Causes
The thermal protection has swit-
The earth clamp, the electrode
holder or the welding torch are not
connected to the unit.
The earth contact is faulty.
The power supply voltage is not
suitable (230 V +/- 15%)
.
Fault due to the tungsten electrode
Gas problem, or gas flow stops too
Ø Nozzle
= Ø wire
1,6
2,4
L
ched on.
Polarity error
Gas flow too high
Welding area.
early
Polarity error
Flow
(mm) (Argon l/mn)
9,8
11
Solutions
Wait the end of the cooling cycle,
about 2 min. The indicator (6)
switches off.
Check the connections
Check the plug and the earth of
your installation.
Check the recommended polarity
(+/-) on the electrode box.
Check the power supply network
or the generator
Use an electrode size more sui-
table to the thickness of your
metal.
Use an tungsten electrode properly
prepared.
Reduce the gas flow
Protect the welding area against
draught.
Check and tighten every gas
connection. Wait for the electrode
to cool down before switching off
the glas flow.
Check that the earth is connected
to the +
EN
6-7
7-8
17