IMS 1305, Owner'S Manual

Page: 9 / 40

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Automatic Arc slope with time adjustable (available for IMS 1905/2510TRI)
Function activation :
This corresponds to the end of welding time required for the gradual decline
in the welding current until the stop of the arc. This function helps to avoid
cracks and craters at end of welding.
This function is not activated (timer at 0 sec). To activate it, proceed as
follow:
1-
Press 3 seconds on the selector button
2- The inscription "dS" (Downslope) starts blinking then one figure appears.
3- Set the automatic arc slope you wish from 0 to 10 sec (display ) using
key .
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 :
Note : the overheating tests have been made at room temperature and the duty cycles at 40°C have been
determined by simulation.
L = 3 x d for a low current
L = d for a strong current
L
IMS 1400
X% @ I max X% @ I max
17% 140A 23% 140A
60% 74A 60% 95A
100% 64A 100% 85A
IMS 1700
X% @ I max X% @ I max
19% 160A 24% 160A
60% 90A 60% 105A
100% 75A 100% 95A
IMS 2510
X% @ I max X% @ I max
11% 250A 16% 250A
60% 105A 60% 125A
100% 80A 100% 105A
IMS 1905
X% @ I max X% @ I max
28% 160A 21% 190A
60% 120A 60% 135A
100% 105A 100% 120A
IMS 1305
X% @ I max X% @ I max
10% 130A 12% 130A
60% 40A 60% 55A
100% 35A 100% 50A